社群
學習
工具庫
AI工具
休閒
搜尋
繁体中文
目錄
SQLSERVER数据库管理员的专用连接DAC
首頁 資料庫 mysql教程 SQLSERVER数据库管理员的专用连接DAC

SQLSERVER数据库管理员的专用连接DAC

WBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWB
WBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWB
Jun 07, 2016 pm 03:44 PM
DAC sqlserver 專用 資料庫 管理員 連接

SQLSERVER数据库管理员的专用连接DAC DAC： Dedicated Admin Connection 当 SQL Server 因系统资源不足，或其它异常导致无法建立数据库连接时， 可以使用系统预留的 DAC 连接到数据库，进行一些问题诊断和故障排除。DAC只能使用有限的资源。请勿使用DAC运行

SQLSERVER数据库管理员的专用连接DAC

DAC：Dedicated Admin Connection

当SQL Server因系统资源不足，或其它异常导致无法建立数据库连接时， 可以使用系统预留的DAC连接到数据库，进行一些问题诊断和故障排除。DAC只能使用有限的资源。请勿使用DAC运行需要消耗大量资源的查询，否则可能发生严重的阻塞。

 

如何启用DAC功能 专用管理员连接功能以及注意事项

1、只有系統管理員(sysadmin)角色相關成員可以使用DAC連接存取SQL Server(Local)本地连接

2、一個執行個體只能存在一個DAC。  

3、使用DAC通常是讓DBA查詢和排解SQL Server問題(當無法正常連接執行個體)，

4、好比執行sp_who2、Kill SPID、DBCC SQLPERF、DBCC DROPCLEANBUFFERS …等,使用DAC連接時，切勿執行需耗費大量資源的命令，如DBCC CHECKDB、DBCC SHRINKDATABASE..等

5、使用DAC登录才能修改系统表或者查看系统表，以前SQL2000的时候你可以随便修改系统表，到了SQL2005就开始限制您了

开启DAC的SQL

<span> 1</span> <span>USE</span><span> master        
</span><span> 2</span> <span>GO</span>        
<span> 3</span> sp_configure <span>'</span><span>show advanced options</span><span>'</span>, <span>1</span> 
<span> 4</span> <span>GO</span>    
<span> 5</span> sp_configure <span>'</span><span>remote admin connections</span><span>'</span>, <span>1</span> 
<span> 6</span> <span>GO</span>        
<span> 7</span> <span>RECONFIGURE</span> <span>WITH</span><span> OVERRIDE    
</span><span> 8</span> <span>GO</span>
<span> 9</span> 
<span>10</span> 
<span>11</span> <span>SELECT</span> <span>*</span>  <span>FROM</span> sys.configurations <span>where</span> name <span>=</span> <span>'</span><span>remote admin connections</span><span>'</span>
登入後複製

也可以在外围应用配置器那里开启

SQLSERVER数据库管理员的专用连接DAC

 

命令行下使用DAC登录
sqlcmd加上 /A 选项  专用管理连接
sqlcmd /S  JOE  /E  /A
1>DBCC DROPCLEANBUFFERS
2>GO

 

排错和诊断的SQL

<span>1</span> <span>SELECT</span> <span>*</span> <span>FROM</span><span> sys.dm_tran_locks
</span><span>2</span> <span>SELECT</span> <span>*</span> <span>FROM</span><span> sys.dm_os_memory_cache_counters
</span><span>3</span> <span>SELECT</span> <span>*</span> <span>FROM</span><span> sys.dm_exec_requests 
</span><span>4</span> <span>SELECT</span> <span>*</span> <span>FROM</span> sys.dm_exec_sessions
登入後複製

例如查询 sys.dm_tran_locks 以了解锁定状态

查询 sys.dm_os_memory_cache_counters ，检查缓存数量

查询sys.dm_exec_requests 和 sys.dm_exec_sessions 以了解活动的会话和请求。
避免使用需要消耗大量资源的 DMV（例如，sys.dm_tran_version_store 需要扫描整个版本存储区，并且会导致大量的 I/O）或使用了复杂联接的 DMV

 

在sqlserver management studio中使用DAC连接的时候，要选择新建查询或者数据库引擎查询，不能使用一上来默认的那个登录框进行DAC连接登录，那个

是连接数据库引擎的，如果用DAC连数据库引擎，会报不支持DAC连接。

SQLSERVER数据库管理员的专用连接DAC

SQLSERVER数据库管理员的专用连接DAC

 

 

 

下面说一下DAC侦听的端口号

若要了解 DAC 所侦听的端口号，可以看SQL错误日志
SQL错误日志
消息
Dedicated admin connection support was established for listening remotely on port 1434.

其他有关DAC错误日志的消息：

消息
Could not connect because the maximum number of '1' dedicated administrator connections already exists. Before a new connection can be made, the existing dedicated administrator connection must be dropped, either by logging off or ending the process. [客户端: 127.0.0.1]

消息
Configuration option 'remote admin connections' changed from 1 to 1. Run the RECONFIGURE statement to install

 

DAC的本地连接和远程连接的方式：

如果将 SQL Server 配置为接受远程管理连接，则必须使用显式端口号启动 DAC：

sqlcmd –Stcp:,

sqlcmd /Stcp:192.168.1.100,1434 /U sa /P test

 

 

SQL Server 错误日志列出了 DAC 的端口号，默认情况下为 1434。

如果将 SQL Server 配置为只接受本地 DAC 连接，请使用以下命令和环回适配器进行连接：

sqlcmd –S127.0.0.1,1434

或者

sqlcmd加上 /A 选项  专用管理连接
sqlcmd /S  JOE  /E  /A

或者

SQLSERVER数据库管理员的专用连接DAC

或者

SQLSERVER数据库管理员的专用连接DAC

 

 

总结：经过本人的实验，发现无论你是用sqlcmd或者SSMS，本地连接还是远程连接，都要使用这种方式

sqlcmd –Stcp:,

本地：sqlcmd –S127.0.0.1,1434

远程：sqlcmd /Stcp:192.168.1.100,1434 /U sa /P test

网上有些文章说不用加端口号，启用SQL Browser服务，就可以连接SQLSERVER，实际上不加1434端口号的话，已经不是在使用DAC来

连接SQLSERVER了，不加1434端口号使用的只是普通连接

2013-11-30补充：

反编译了一下DAC的DLL

在下面的公用DLL路径

DAC功能应该就是调用这个路径下的C:\Program Files\Microsoft SQL Server\100\SDK\Assemblies\Microsoft.SqlServer.Management.Dac.dll

用ILSpy这个工具来反编译，实际上SQLSRVER很多功能组件都是用.NET来编写的

除非一些核心功能组件用C++或者C，你们会发现很多DLL都可以用ILSpy这个.NET反编译工具来反编译

微乳并没有混淆他们的代码，这些如果没有开发文档的话，要理解这些代码的层次结构和意思会比较困难

SQLSERVER数据库管理员的专用连接DAC

 SQLSERVER数据库管理员的专用连接DAC

 

SQLSERVER数据库管理员的专用连接DAC

SQLSERVER数据库管理员的专用连接DAC

 

其中一个类的代码

SQLSERVER数据库管理员的专用连接DACSQLSERVER数据库管理员的专用连接DAC 

<span>  1</span> <span>using Microsoft.SqlServer.Management.Common;
</span><span>  2</span> <span>using Microsoft.SqlServer.Management.Smo;
</span><span>  3</span> <span>using Microsoft.SqlServer.Management.SmoMetadataProvider;
</span><span>  4</span> <span>using Microsoft.SqlServer.Management.SqlParser.Common;
</span><span>  5</span> <span>using Microsoft.SqlServer.Management.SqlParser.Metadata;
</span><span>  6</span> <span>using Microsoft.SqlServer.Management.SqlParser.MetadataDifferencer;
</span><span>  7</span> <span>using Microsoft.SqlServer.Management.SqlParser.MetadataServices;
</span><span>  8</span> <span>using System;
</span><span>  9</span> <span>using System.Collections;
</span><span> 10</span> <span>using System.Collections.Generic;
</span><span> 11</span> <span>using System.Globalization;
</span><span> 12</span> <span>using System.IO;
</span><span> 13</span> <span>using System.Linq;
</span><span> 14</span> <span>using System.Runtime.CompilerServices;
</span><span> 15</span> using System.<span>Text</span><span>;
</span><span> 16</span> using System.<span>Text</span><span>.RegularExpressions;
</span><span> 17</span> <span>using System.Xml;
</span><span> 18</span> <span>namespace Microsoft.SqlServer.Management.Dac.UI
</span><span> 19</span> <span>{
</span><span> 20</span> <span>    internal class InternalUIHooks
</span><span> 21</span> <span>    {
</span><span> 22</span> <span>        private static class DifferencerTestUtils
</span><span> 23</span> <span>        {
</span><span> 24</span> <span>            private class DacUtils
</span><span> 25</span> <span>            {
</span><span> 26</span>                 <span>public</span> class MetadataObjectComparer : IComparer<span>IMetadataObject<span>></span>
<span> 27</span> <span>                {
</span><span> 28</span>                     <span>public</span> static InternalUIHooks.DifferencerTestUtils.DacUtils.MetadataObjectComparer Instance <span>=</span><span> new InternalUIHooks.DifferencerTestUtils.DacUtils.MetadataObjectComparer();
</span><span> 29</span>                     <span>public</span> <span>int</span><span> Compare(IMetadataObject x, IMetadataObject y)
</span><span> 30</span> <span>                    {
</span><span> 31</span>                         <span>if</span><span> (object.ReferenceEquals(x, y))
</span><span> 32</span> <span>                        {
</span><span> 33</span>                             <span>return</span> <span>0</span><span>;
</span><span> 34</span> <span>                        }
</span><span> 35</span>                         <span>if</span> (x <span>==</span> <span>null</span><span>)
</span><span> 36</span> <span>                        {
</span><span> 37</span>                             <span>return</span> <span>-</span><span>1</span><span>;
</span><span> 38</span> <span>                        }
</span><span> 39</span>                         <span>if</span> (y <span>==</span> <span>null</span><span>)
</span><span> 40</span> <span>                        {
</span><span> 41</span>                             <span>return</span> <span>1</span><span>;
</span><span> 42</span> <span>                        }
</span><span> 43</span>                         IList<span>IMetadataObject<span>></span> hierarchy <span>=</span><span> InternalUIHooks.DifferencerTestUtils.DacUtils.MetadataObjectComparer.GetHierarchy(x);
</span><span> 44</span>                         IList<span>IMetadataObject<span>></span> hierarchy2 <span>=</span><span> InternalUIHooks.DifferencerTestUtils.DacUtils.MetadataObjectComparer.GetHierarchy(y);
</span><span> 45</span>                         <span>int</span> num <span>=</span> <span>0</span><span>;
</span><span> 46</span>                         <span>while</span> (num <span> hierarchy.<span>Count</span> <span>||</span> num <span> hierarchy2.<span>Count</span><span>)
</span><span> 47</span> <span>                        {
</span><span> 48</span>                             <span>if</span> (num <span>>=</span> hierarchy.<span>Count</span><span>)
</span><span> 49</span> <span>                            {
</span><span> 50</span>                                 <span>return</span> <span>-</span><span>1</span><span>;
</span><span> 51</span> <span>                            }
</span><span> 52</span>                             <span>if</span> (num <span>>=</span> hierarchy2.<span>Count</span><span>)
</span><span> 53</span> <span>                            {
</span><span> 54</span>                                 <span>return</span> <span>1</span><span>;
</span><span> 55</span> <span>                            }
</span><span> 56</span>                             <span>int</span> num2 <span>=</span> hierarchy<span>[</span><span>num</span><span>]</span>.TypeInfo().CompareTo(hierarchy2<span>[</span><span>num</span><span>]</span><span>.TypeInfo());
</span><span> 57</span>                             <span>if</span> (num2 <span>!=</span> <span>0</span><span>)
</span><span> 58</span> <span>                            {
</span><span> 59</span>                                 <span>return</span><span> num2;
</span><span> 60</span> <span>                            }
</span><span> 61</span>                             <span>int</span> num3 <span>=</span> StringComparer.Ordinal.Compare(hierarchy<span>[</span><span>num</span><span>]</span>.Name, hierarchy2<span>[</span><span>num</span><span>]</span><span>.Name);
</span><span> 62</span>                             <span>if</span> (num3 <span>!=</span> <span>0</span><span>)
</span><span> 63</span> <span>                            {
</span><span> 64</span>                                 <span>return</span><span> num3;
</span><span> 65</span> <span>                            }
</span><span> 66</span>                             num<span>++</span><span>;
</span><span> 67</span> <span>                        }
</span><span> 68</span>                         <span>return</span> <span>0</span><span>;
</span><span> 69</span> <span>                    }
</span><span> 70</span>                     private static IList<span>IMetadataObject<span>></span><span> GetHierarchy(IMetadataObject obj)
</span><span> 71</span> <span>                    {
</span><span> 72</span>                         List<span>IMetadataObject<span>></span> list <span>=</span> new List<span>IMetadataObject<span>></span><span>();
</span><span> 73</span>                         <span>for</span> (IMetadataObject metadataObject <span>=</span> obj; metadataObject <span>!=</span> <span>null</span>; metadataObject <span>=</span><span> InternalUIHooks.DifferencerTestUtils.DacUtils.GetParentObjectSafe(metadataObject))
</span><span> 74</span> <span>                        {
</span><span> 75</span>                             list.<span>Add</span><span>(metadataObject);
</span><span> 76</span> <span>                        }
</span><span> 77</span>                         list.<span>Reverse</span><span>();
</span><span> 78</span>                         <span>return</span><span> list;
</span><span> 79</span> <span>                    }
</span><span> 80</span> <span>                }
</span><span> 81</span> <span>                internal static DacType CreateDacFromSql(string sql)
</span><span> 82</span> <span>                {
</span><span> 83</span>                     <span>return</span> InternalUIHooks.DifferencerTestUtils.DacUtils.CreateDacFromSql(sql, new Version("<span>1.1</span>.<span>1.1</span><span>"), string.Empty);
</span><span> 84</span> <span>                }
</span><span> 85</span> <span>                internal static DacType CreateDacFromSql(string sql, Version version, string description)
</span><span> 86</span> <span>                {
</span><span> 87</span>                     DacCompilationUnit dacCompilationUnit <span>=</span><span> new DacCompilationUnit("Dac", version, "SQL_Latin1_General_CP1_CI_AS");
</span><span> 88</span>                     dacCompilationUnit.Description <span>=</span><span> description;
</span><span> 89</span> <span>                    dacCompilationUnit.AddTSqlSourceFile("input.sql", sql);
</span><span> 90</span>                     DacCompilationResult dacCompilationResult <span>=</span><span> dacCompilationUnit.Compile();
</span><span> 91</span>                     List<span>DacCompilationError<span>></span> list <span>=</span> new List<span>DacCompilationError<span>></span><span>(dacCompilationResult.Errors);
</span><span> 92</span>                     <span>if</span> (list.<span>Count</span> <span>!=</span> <span>0</span><span>)
</span><span> 93</span> <span>                    {
</span><span> 94</span> <span>                        InternalUIHooks.DifferencerTestUtils.DacUtils.PrintCompilationResultErrors(dacCompilationResult);
</span><span> 95</span> <span>                    }
</span><span> 96</span>                     <span>return</span><span> InternalUIHooks.DifferencerTestUtils.DacUtils.NormalizeDacType(dacCompilationResult.DacType);
</span><span> 97</span> <span>                }
</span><span> 98</span> <span>                private static DacType NormalizeDacType(DacType dacType)
</span><span> 99</span> <span>                {
</span><span>100</span> <span>                    DacType result;
</span><span>101</span>                     using (MemoryStream memoryStream <span>=</span><span> new MemoryStream())
</span><span>102</span> <span>                    {
</span><span>103</span>                         DacType.<span>Save</span><span>(dacType, memoryStream);
</span><span>104</span>                         memoryStream.Seek(0L, SeekOrigin.<span>Begin</span><span>);
</span><span>105</span>                         result <span>=</span> DacType.<span>Load</span><span>(memoryStream);
</span><span>106</span> <span>                    }
</span><span>107</span>                     <span>return</span><span> result;
</span><span>108</span> <span>                }
</span><span>109</span> <span>                private static void PrintCompilationResultErrors(DacCompilationResult result)
</span><span>110</span> <span>                {
</span><span>111</span>                     List<span>DacCompilationError<span>></span> list <span>=</span> new List<span>DacCompilationError<span>></span><span>(result.Errors);
</span><span>112</span>                     Console.WriteLine("Compilation Result Errors (" <span>+</span> list.<span>Count</span> <span>+</span><span> ")");
</span><span>113</span>                     foreach (DacCompilationError <span>current</span> <span>in</span><span> list)
</span><span>114</span> <span>                    {
</span><span>115</span>                         Console.WriteLine("\t<span>-</span> {<span>0</span>}{<span>1</span>}: " <span>+</span> <span>current</span>.ToString(), <span>current</span>.IsWarning ? "Warning" : "Error", (<span>current</span>.SourceInfo <span>!=</span> <span>null</span>) ? (" " <span>+</span> InternalUIHooks.DifferencerTestUtils.DacUtils.GetLocationString(<span>current</span><span>.SourceInfo)) : "");
</span><span>116</span> <span>                    }
</span><span>117</span> <span>                    Console.WriteLine();
</span><span>118</span> <span>                }
</span><span>119</span> <span>                private static string GetLocationString(SourceInfo sourceInfo)
</span><span>120</span> <span>                {
</span><span>121</span>                     <span>return</span> string.Concat(new object<span>[]</span>
<span>122</span> <span>                    {
</span><span>123</span> <span>                        sourceInfo.Filename, 
</span><span>124</span> <span>                        ":", 
</span><span>125</span> <span>                        sourceInfo.Start.LineNumber, 
</span><span>126</span> <span>                        ",", 
</span><span>127</span> <span>                        sourceInfo.Start.ColumnNumber
</span><span>128</span> <span>                    });
</span><span>129</span> <span>                }
</span><span>130</span>                 <span>public</span><span> static DacType CreateDacFromFile(string fileName)
</span><span>131</span> <span>                {
</span><span>132</span>                     string sql <span>=</span> <span>File</span><span>.ReadAllText(fileName);
</span><span>133</span>                     <span>return</span><span> InternalUIHooks.DifferencerTestUtils.DacUtils.CreateDacFromSql(sql);
</span><span>134</span> <span>                }
</span><span>135</span>                 <span>public</span><span> static DacType CreateDacFromFile(string fileName, Version version, string description)
</span><span>136</span> <span>                {
</span><span>137</span>                     string sql <span>=</span> <span>File</span><span>.ReadAllText(fileName);
</span><span>138</span>                     <span>return</span><span> InternalUIHooks.DifferencerTestUtils.DacUtils.CreateDacFromSql(sql, version, description);
</span><span>139</span> <span>                }
</span><span>140</span>                 <span>public</span><span> static string GetMetadataObjectIdString(IMetadataObject obj)
</span><span>141</span> <span>                {
</span><span>142</span>                     List<span>string<span>></span> list <span>=</span> new List<span>string<span>></span><span>();
</span><span>143</span>                     IMetadataObject metadataObject <span>=</span><span> obj;
</span><span>144</span>                     <span>while</span><span> (true)
</span><span>145</span> <span>                    {
</span><span>146</span>                         TypeInfo typeInfo <span>=</span><span> metadataObject.TypeInfo();
</span><span>147</span>                         string <span>text</span> <span>=</span> typeInfo.Name.<span>Substring</span>(<span>1</span><span>);
</span><span>148</span>                         string item <span>=</span> string.Format(CultureInfo.InvariantCulture, "{<span>0</span>}{<span>1</span>}", new object<span>[]</span>
<span>149</span> <span>                        {
</span><span>150</span>                             <span>text</span><span>, 
</span><span>151</span>                             (!(metadataObject <span>is</span> IServer)) ? ("<span>[</span><span>" + metadataObject.Name.Replace("</span><span>]</span>", "]]") <span>+</span><span> "]") : string.Empty
</span><span>152</span> <span>                        });
</span><span>153</span>                         list.<span>Add</span><span>(item);
</span><span>154</span>                         <span>if</span> (metadataObject <span>is</span><span> IServer)
</span><span>155</span> <span>                        {
</span><span>156</span>                             <span>break</span><span>;
</span><span>157</span> <span>                        }
</span><span>158</span>                         metadataObject <span>=</span><span> InternalUIHooks.DifferencerTestUtils.DacUtils.GetParentObject(metadataObject);
</span><span>159</span> <span>                    }
</span><span>160</span>                     list.<span>Reverse</span><span>();
</span><span>161</span>                     <span>return</span> string.<span>Join</span>("<span>/</span><span>", list.ToArray());
</span><span>162</span> <span>                }
</span><span>163</span>                 <span>public</span><span> static string GetMetadataObjectTypeString(IMetadataObject obj)
</span><span>164</span> <span>                {
</span><span>165</span>                     <span>return</span> obj.TypeInfo().Name.<span>Substring</span>(<span>1</span><span>);
</span><span>166</span> <span>                }
</span><span>167</span>                 <span>public</span><span> static IMetadataObject GetParentObject(IMetadataObject obj)
</span><span>168</span> <span>                {
</span><span>169</span>                     MetadataTypeInfo metadataTypeInfo <span>=</span><span> obj.TypeInfo();
</span><span>170</span>                     MetadataPropertyInfo parentProperty <span>=</span><span> metadataTypeInfo.ParentProperty;
</span><span>171</span>                     object propertyValue <span>=</span><span> MetadataUtils.GetPropertyValue(obj, metadataTypeInfo, parentProperty);
</span><span>172</span>                     <span>return</span><span> (IMetadataObject)propertyValue;
</span><span>173</span> <span>                }
</span><span>174</span>                 <span>public</span><span> static IMetadataObject GetParentObjectSafe(IMetadataObject obj)
</span><span>175</span> <span>                {
</span><span>176</span>                     MetadataTypeInfo metadataTypeInfo <span>=</span><span> obj.TypeInfo();
</span><span>177</span>                     MetadataPropertyInfo parentProperty <span>=</span><span> metadataTypeInfo.ParentProperty;
</span><span>178</span>                     <span>if</span> (parentProperty <span>==</span> <span>null</span><span>)
</span><span>179</span> <span>                    {
</span><span>180</span>                         <span>return</span> <span>null</span><span>;
</span><span>181</span> <span>                    }
</span><span>182</span>                     object propertyValue <span>=</span><span> MetadataUtils.GetPropertyValue(obj, metadataTypeInfo, parentProperty);
</span><span>183</span>                     <span>return</span><span> (IMetadataObject)propertyValue;
</span><span>184</span> <span>                }
</span><span>185</span>                 <span>public</span><span> static void WriteObject(XmlWriter writer, object value, bool writeDefinition)
</span><span>186</span> <span>                {
</span><span>187</span>                     Type type <span>=</span> (value <span>!=</span> <span>null</span>) ? value.GetType() : <span>null</span><span>;
</span><span>188</span>                     <span>if</span> (value <span>==</span> <span>null</span><span>)
</span><span>189</span> <span>                    {
</span><span>190</span>                         writer.WriteAttributeString("<span>isNull</span><span>", true.ToString());
</span><span>191</span>                         <span>return</span><span>;
</span><span>192</span> <span>                    }
</span><span>193</span>                     <span>if</span> (type.IsPrimitive <span>||</span> type.IsEnum <span>||</span> type <span>==</span><span> typeof(string))
</span><span>194</span> <span>                    {
</span><span>195</span> <span>                        writer.WriteString(value.ToString());
</span><span>196</span>                         <span>return</span><span>;
</span><span>197</span> <span>                    }
</span><span>198</span>                     <span>if</span> (type <span>==</span><span> typeof(IdentityColumnInfo))
</span><span>199</span> <span>                    {
</span><span>200</span> <span>                        writer.WriteStartElement("Increment");
</span><span>201</span> <span>                        InternalUIHooks.DifferencerTestUtils.DacUtils.WriteObject(writer, ((IdentityColumnInfo)value).Increment, true);
</span><span>202</span> <span>                        writer.WriteEndElement();
</span><span>203</span> <span>                        writer.WriteStartElement("Seed");
</span><span>204</span> <span>                        InternalUIHooks.DifferencerTestUtils.DacUtils.WriteObject(writer, ((IdentityColumnInfo)value).Seed, true);
</span><span>205</span> <span>                        writer.WriteEndElement();
</span><span>206</span>                         <span>return</span><span>;
</span><span>207</span> <span>                    }
</span><span>208</span>                     <span>if</span> (type <span>==</span><span> typeof(ComputedColumnInfo))
</span><span>209</span> <span>                    {
</span><span>210</span> <span>                        writer.WriteStartElement("IsPersisted");
</span><span>211</span> <span>                        InternalUIHooks.DifferencerTestUtils.DacUtils.WriteObject(writer, ((ComputedColumnInfo)value).IsPersisted, true);
</span><span>212</span> <span>                        writer.WriteEndElement();
</span><span>213</span>                         writer.WriteStartElement("<span>Text</span><span>");
</span><span>214</span>                         InternalUIHooks.DifferencerTestUtils.DacUtils.WriteObject(writer, ((ComputedColumnInfo)value).<span>Text</span><span>, true);
</span><span>215</span> <span>                        writer.WriteEndElement();
</span><span>216</span>                         <span>return</span><span>;
</span><span>217</span> <span>                    }
</span><span>218</span>                     <span>if</span> (type <span>==</span><span> typeof(DataTypeSpec))
</span><span>219</span> <span>                    {
</span><span>220</span> <span>                        writer.WriteString(((DataTypeSpec)value).SqlDataType.ToString());
</span><span>221</span>                         <span>return</span><span>;
</span><span>222</span> <span>                    }
</span><span>223</span>                     <span>if</span> (type <span>==</span><span> typeof(CollationInfo))
</span><span>224</span> <span>                    {
</span><span>225</span> <span>                        writer.WriteStartElement("CollationInfo");
</span><span>226</span> <span>                        InternalUIHooks.DifferencerTestUtils.DacUtils.WriteObject(writer, ((CollationInfo)value).Name, true);
</span><span>227</span> <span>                        writer.WriteEndElement();
</span><span>228</span>                         <span>return</span><span>;
</span><span>229</span> <span>                    }
</span><span>230</span>                     <span>if</span> (value <span>is</span><span> ISystemClrDataType)
</span><span>231</span> <span>                    {
</span><span>232</span> <span>                        writer.WriteStartElement("ISystemClrDataType");
</span><span>233</span> <span>                        InternalUIHooks.DifferencerTestUtils.DacUtils.WriteObject(writer, ((ISystemClrDataType)value).Name, true);
</span><span>234</span> <span>                        writer.WriteEndElement();
</span><span>235</span>                         <span>return</span><span>;
</span><span>236</span> <span>                    }
</span><span>237</span>                     <span>if</span> (value <span>is</span><span> IMetadataObject)
</span><span>238</span> <span>                    {
</span><span>239</span>                         IMetadataObject obj <span>=</span><span> (IMetadataObject)value;
</span><span>240</span>                         MetadataTypeInfo metadataTypeInfo <span>=</span><span> obj.TypeInfo();
</span><span>241</span>                         <span>if</span> (metadataTypeInfo.IsValue <span>||</span> (metadataTypeInfo.IsReference <span>&&</span><span> writeDefinition))
</span><span>242</span> <span>                        {
</span><span>243</span> <span>                            writer.WriteStartElement(InternalUIHooks.DifferencerTestUtils.DacUtils.GetMetadataObjectTypeString(obj));
</span><span>244</span>                             foreach (MetadataPropertyInfo <span>current</span> <span>in</span><span> metadataTypeInfo.InstanceProperties)
</span><span>245</span> <span>                            {
</span><span>246</span>                                 object propertyValue <span>=</span> MetadataUtils.GetPropertyValue(obj, metadataTypeInfo, <span>current</span><span>);
</span><span>247</span>                                 writer.WriteStartElement(<span>current</span><span>.Name);
</span><span>248</span>                                 InternalUIHooks.DifferencerTestUtils.DacUtils.WriteObject(writer, propertyValue, writeDefinition <span>&&</span> <span>current</span>.PropertyType <span>==</span><span> PropertyType.Child);
</span><span>249</span> <span>                                writer.WriteEndElement();
</span><span>250</span> <span>                            }
</span><span>251</span> <span>                            writer.WriteEndElement();
</span><span>252</span>                             <span>return</span><span>;
</span><span>253</span> <span>                        }
</span><span>254</span>                         <span>if</span><span> (metadataTypeInfo.IsReference)
</span><span>255</span> <span>                        {
</span><span>256</span> <span>                            writer.WriteAttributeString("id", InternalUIHooks.DifferencerTestUtils.DacUtils.GetMetadataObjectIdString(obj));
</span><span>257</span>                             <span>return</span><span>;
</span><span>258</span> <span>                        }
</span><span>259</span> <span>                    }
</span><span>260</span>                     <span>else</span>
<span>261</span> <span>                    {
</span><span>262</span>                         <span>if</span> (value <span>is</span><span> IEnumerable)
</span><span>263</span> <span>                        {
</span><span>264</span>                             foreach (object current2 <span>in</span><span> (IEnumerable)value)
</span><span>265</span> <span>                            {
</span><span>266</span>                                 string localName <span>=</span> (current2 <span>is</span><span> IMetadataObject) ? InternalUIHooks.DifferencerTestUtils.DacUtils.GetMetadataObjectTypeString((IMetadataObject)current2) : "Item";
</span><span>267</span> <span>                                writer.WriteStartElement(localName);
</span><span>268</span> <span>                                InternalUIHooks.DifferencerTestUtils.DacUtils.WriteObject(writer, current2, writeDefinition);
</span><span>269</span> <span>                                writer.WriteEndElement();
</span><span>270</span> <span>                            }
</span><span>271</span> <span>                        }
</span><span>272</span> <span>                    }
</span><span>273</span> <span>                }
</span><span>274</span> <span>            }
</span><span>275</span>             <span>public</span><span> static void WriteChangeResult(XmlWriter writer, ChangeResult changeResult)
</span><span>276</span> <span>            {
</span><span>277</span> <span>                writer.WriteStartElement("ChangeResult");
</span><span>278</span> <span>                writer.WriteStartElement("CreatedObjects");
</span><span>279</span> <span>                InternalUIHooks.DifferencerTestUtils.WriteObjectRefs(writer, changeResult.CreatedObjects);
</span><span>280</span> <span>                writer.WriteEndElement();
</span><span>281</span> <span>                writer.WriteStartElement("DeletedObjects");
</span><span>282</span> <span>                InternalUIHooks.DifferencerTestUtils.WriteObjectRefs(writer, changeResult.DeletedObjects);
</span><span>283</span> <span>                writer.WriteEndElement();
</span><span>284</span> <span>                writer.WriteStartElement("ModifiedObjects");
</span><span>285</span>                 InternalUIHooks.DifferencerTestUtils.WriteModifiedObjects(writer, changeResult.SourceModifiedObjects.<span>Values</span><span>);
</span><span>286</span> <span>                writer.WriteEndElement();
</span><span>287</span> <span>                writer.WriteEndElement();
</span><span>288</span> <span>            }
</span><span>289</span>             <span>public</span> static void WriteModifiedObjects(XmlWriter writer, IEnumerable<span>ObjectDifference<span>></span><span> objectDifferenceCollection)
</span><span>290</span> <span>            {
</span><span>291</span>                 List<span>ObjectDifference<span>></span> list <span>=</span> objectDifferenceCollection.ToList<span>ObjectDifference<span>></span><span>();
</span><span>292</span>                 list.Sort((ObjectDifference x, ObjectDifference y) <span>=></span> InternalUIHooks.DifferencerTestUtils.DacUtils.MetadataObjectComparer.Instance.Compare(x.ChangedObjectSource, y.ChangedObjectSource) <span>*</span> <span>2</span> <span>+</span><span> InternalUIHooks.DifferencerTestUtils.DacUtils.MetadataObjectComparer.Instance.Compare(x.ChangedObjectTarget, y.ChangedObjectTarget));
</span><span>293</span> <span>                list.ForEach(delegate(ObjectDifference diff)
</span><span>294</span> <span>                {
</span><span>295</span> <span>                    InternalUIHooks.DifferencerTestUtils.WriteObjectDifference(writer, diff);
</span><span>296</span> <span>                }
</span><span>297</span> <span>                );
</span><span>298</span> <span>            }
</span><span>299</span>             <span>public</span><span> static void WriteObjectDifference(XmlWriter writer, ObjectDifference objectDifference)
</span><span>300</span> <span>            {
</span><span>301</span> <span>                writer.WriteStartElement(InternalUIHooks.DifferencerTestUtils.DacUtils.GetMetadataObjectTypeString(objectDifference.ChangedObjectSource));
</span><span>302</span> <span>                writer.WriteStartElement("ChangedObjectSource");
</span><span>303</span> <span>                writer.WriteAttributeString("Id", InternalUIHooks.DifferencerTestUtils.DacUtils.GetMetadataObjectIdString(objectDifference.ChangedObjectSource));
</span><span>304</span> <span>                writer.WriteEndElement();
</span><span>305</span> <span>                writer.WriteStartElement("ChangedObjectTarget");
</span><span>306</span> <span>                writer.WriteAttributeString("Id", InternalUIHooks.DifferencerTestUtils.DacUtils.GetMetadataObjectIdString(objectDifference.ChangedObjectTarget));
</span><span>307</span> <span>                writer.WriteEndElement();
</span><span>308</span> <span>                writer.WriteStartElement("Properties");
</span><span>309</span>                 List<span>PropertyDifference<span>></span> list <span>=</span><span> (
</span><span>310</span>                     <span>from</span> p <span>in</span> objectDifference.PropertyDifferences.<span>Values</span>
<span>311</span> <span>                    orderby p.Name
</span><span>312</span>                     <span>select</span> p).ToList<span>PropertyDifference<span>></span><span>();
</span><span>313</span> <span>                list.ForEach(delegate(PropertyDifference p)
</span><span>314</span> <span>                {
</span><span>315</span> <span>                    InternalUIHooks.DifferencerTestUtils.WritePropertyDifference(writer, p);
</span><span>316</span> <span>                }
</span><span>317</span> <span>                );
</span><span>318</span> <span>                writer.WriteEndElement();
</span><span>319</span> <span>                writer.WriteEndElement();
</span><span>320</span> <span>            }
</span><span>321</span>             <span>public</span><span> static void WritePropertyDifference(XmlWriter writer, PropertyDifference propertyDifference)
</span><span>322</span> <span>            {
</span><span>323</span> <span>                writer.WriteStartElement(propertyDifference.Name);
</span><span>324</span>                 <span>if</span> (propertyDifference <span>is</span><span> OrderedCollectionDifference)
</span><span>325</span> <span>                {
</span><span>326</span>                     OrderedCollectionDifference orderedCollectionDifference <span>=</span> propertyDifference <span>as</span><span> OrderedCollectionDifference;
</span><span>327</span>                     using (IEnumerator<span>OrderedScalarDifference<span>></span> enumerator <span>=</span><span> orderedCollectionDifference.OrderDifferences.GetEnumerator())
</span><span>328</span> <span>                    {
</span><span>329</span>                         <span>while</span><span> (enumerator.MoveNext())
</span><span>330</span> <span>                        {
</span><span>331</span>                             OrderedScalarDifference <span>current</span> <span>=</span> enumerator.<span>Current</span><span>;
</span><span>332</span>                             writer.WriteStartElement(InternalUIHooks.DifferencerTestUtils.DacUtils.GetMetadataObjectTypeString((IMetadataObject)<span>current</span><span>.SourceValue));
</span><span>333</span>                             writer.WriteAttributeString("sourceIndex", <span>current</span><span>.SourceIndex.ToString(CultureInfo.InvariantCulture));
</span><span>334</span>                             writer.WriteAttributeString("targetIndex", <span>current</span><span>.TargetIndex.ToString(CultureInfo.InvariantCulture));
</span><span>335</span> <span>                            writer.WriteStartElement("SourceValue");
</span><span>336</span>                             InternalUIHooks.DifferencerTestUtils.DacUtils.WriteObject(writer, <span>current</span><span>.SourceValue, false);
</span><span>337</span> <span>                            writer.WriteEndElement();
</span><span>338</span> <span>                            writer.WriteStartElement("TargetValue");
</span><span>339</span>                             InternalUIHooks.DifferencerTestUtils.DacUtils.WriteObject(writer, <span>current</span><span>.TargetValue, false);
</span><span>340</span> <span>                            writer.WriteEndElement();
</span><span>341</span> <span>                            writer.WriteEndElement();
</span><span>342</span> <span>                        }
</span><span>343</span>                         <span>goto</span><span> IL_12E;
</span><span>344</span> <span>                    }
</span><span>345</span> <span>                }
</span><span>346</span>                 <span>if</span> (propertyDifference <span>is</span><span> ScalarDifference)
</span><span>347</span> <span>                {
</span><span>348</span>                     ScalarDifference scalarDifference <span>=</span> propertyDifference <span>as</span><span> ScalarDifference;
</span><span>349</span> <span>                    writer.WriteStartElement("SourceValue");
</span><span>350</span> <span>                    InternalUIHooks.DifferencerTestUtils.DacUtils.WriteObject(writer, scalarDifference.SourceValue, false);
</span><span>351</span> <span>                    writer.WriteEndElement();
</span><span>352</span> <span>                    writer.WriteStartElement("TargetValue");
</span><span>353</span> <span>                    InternalUIHooks.DifferencerTestUtils.DacUtils.WriteObject(writer, scalarDifference.TargetValue, false);
</span><span>354</span> <span>                    writer.WriteEndElement();
</span><span>355</span> <span>                }
</span><span>356</span> <span>                IL_12E:
</span><span>357</span> <span>                writer.WriteEndElement();
</span><span>358</span> <span>            }
</span><span>359</span>             <span>public</span> static void WriteObjectRefs(XmlWriter writer, IEnumerable<span>IMetadataObject<span>></span><span> objectCollection)
</span><span>360</span> <span>            {
</span><span>361</span>                 List<span>IMetadataObject<span>></span> list <span>=</span> objectCollection.ToList<span>IMetadataObject<span>></span><span>();
</span><span>362</span> <span>                list.Sort(InternalUIHooks.DifferencerTestUtils.DacUtils.MetadataObjectComparer.Instance);
</span><span>363</span>                 foreach (IMetadataObject <span>current</span> <span>in</span><span> list)
</span><span>364</span> <span>                {
</span><span>365</span>                     writer.WriteStartElement(InternalUIHooks.DifferencerTestUtils.DacUtils.GetMetadataObjectTypeString(<span>current</span><span>));
</span><span>366</span>                     InternalUIHooks.DifferencerTestUtils.DacUtils.WriteObject(writer, <span>current</span><span>, false);
</span><span>367</span> <span>                    writer.WriteEndElement();
</span><span>368</span> <span>                }
</span><span>369</span> <span>            }
</span><span>370</span>             <span>public</span><span> static bool IsChangeResultDrift(ChangeResult changeResult)
</span><span>371</span> <span>            {
</span><span>372</span>                 bool flag <span>=</span> changeResult.CreatedObjects.<span>Count</span><span>IMetadataObject<span>></span>() <span>!=</span> <span>0</span> <span>||</span> changeResult.DeletedObjects.<span>Count</span><span>IMetadataObject<span>></span>() <span>!=</span> <span>0</span><span>;
</span><span>373</span>                 foreach (ObjectDifference <span>current</span> <span>in</span> changeResult.SourceModifiedObjects.<span>Values</span><span>)
</span><span>374</span> <span>                {
</span><span>375</span>                     flag <span>=</span> (!(<span>current</span>.ChangedObjectSource <span>is</span> IConstraint) <span>||</span> (flag <span>|</span> InternalUIHooks.DifferencerTestUtils.IsConstraintDifferenceDrift(<span>current</span><span>)));
</span><span>376</span> <span>                }
</span><span>377</span>                 <span>return</span><span> flag;
</span><span>378</span> <span>            }
</span><span>379</span> <span>            private static bool IsConstraintDifferenceDrift(ObjectDifference objectDifference)
</span><span>380</span> <span>            {
</span><span>381</span>                 bool result <span>=</span><span> false;
</span><span>382</span>                 foreach (PropertyDifference <span>current</span> <span>in</span> objectDifference.PropertyDifferences.<span>Values</span><span>)
</span><span>383</span> <span>                {
</span><span>384</span>                     <span>if</span> (<span>current</span>.Name <span>==</span><span> "IsChecked")
</span><span>385</span> <span>                    {
</span><span>386</span>                         <span>if</span> (!InternalUIHooks.DifferencerTestUtils.IsNotForReplicationConstraint((IConstraint)objectDifference.ChangedObjectSource) <span>&&</span><span> !InternalUIHooks.DifferencerTestUtils.IsNotForReplicationConstraint((IConstraint)objectDifference.ChangedObjectTarget))
</span><span>387</span> <span>                        {
</span><span>388</span>                             result <span>=</span><span> true;
</span><span>389</span> <span>                        }
</span><span>390</span> <span>                    }
</span><span>391</span>                     <span>else</span>
<span>392</span> <span>                    {
</span><span>393</span>                         result <span>=</span><span> true;
</span><span>394</span> <span>                    }
</span><span>395</span> <span>                }
</span><span>396</span>                 <span>return</span><span> result;
</span><span>397</span> <span>            }
</span><span>398</span>             private static bool IsNotForReplicationConstraint(IConstraint <span>constraint</span><span>)
</span><span>399</span> <span>            {
</span><span>400</span> <span>                bool result;
</span><span>401</span>                 switch (<span>constraint</span><span>.Type)
</span><span>402</span> <span>                {
</span><span>403</span>                     <span>case</span> ConstraintType.<span>Check</span><span>:
</span><span>404</span> <span>                    {
</span><span>405</span>                         result <span>=</span> ((ICheckConstraint)<span>constraint</span><span>).NotForReplication;
</span><span>406</span>                         <span>break</span><span>;
</span><span>407</span> <span>                    }
</span><span>408</span>                     <span>case</span><span> ConstraintType.ForeignKey:
</span><span>409</span> <span>                    {
</span><span>410</span>                         result <span>=</span> ((IForeignKeyConstraint)<span>constraint</span><span>).NotForReplication;
</span><span>411</span>                         <span>break</span><span>;
</span><span>412</span> <span>                    }
</span><span>413</span>                     <span>case</span><span> ConstraintType.PrimaryKey:
</span><span>414</span>                     <span>case</span> ConstraintType.<span>Unique</span><span>:
</span><span>415</span> <span>                    {
</span><span>416</span>                         result <span>=</span><span> false;
</span><span>417</span>                         <span>break</span><span>;
</span><span>418</span> <span>                    }
</span><span>419</span>                     <span>default</span><span>:
</span><span>420</span> <span>                    {
</span><span>421</span>                         result <span>=</span><span> false;
</span><span>422</span>                         <span>break</span><span>;
</span><span>423</span> <span>                    }
</span><span>424</span> <span>                }
</span><span>425</span>                 <span>return</span><span> result;
</span><span>426</span> <span>            }
</span><span>427</span> <span>        }
</span><span>428</span>         <span>public</span> const string DacTypeName <span>=</span><span> "Dac";
</span><span>429</span>         <span>public</span> const string DefaultCollation <span>=</span><span> "SQL_Latin1_General_CP1_CI_AS";
</span><span>430</span>         <span>public</span><span> event TextUpdateHandler ScriptUpdate
</span><span>431</span> <span>        {
</span><span>432</span>             <span>[</span><span>MethodImpl(MethodImplOptions.Synchronized)</span><span>]</span>
<span>433</span>             <span>add</span>
<span>434</span> <span>            {
</span><span>435</span>                 this.ScriptUpdate <span>=</span><span> (TextUpdateHandler)Delegate.Combine(this.ScriptUpdate, value);
</span><span>436</span> <span>            }
</span><span>437</span>             <span>[</span><span>MethodImpl(MethodImplOptions.Synchronized)</span><span>]</span>
<span>438</span> <span>            remove
</span><span>439</span> <span>            {
</span><span>440</span>                 this.ScriptUpdate <span>=</span><span> (TextUpdateHandler)Delegate.Remove(this.ScriptUpdate, value);
</span><span>441</span> <span>            }
</span><span>442</span> <span>        }
</span><span>443</span>         <span>public</span><span> event TextUpdateHandler ModelUpdate
</span><span>444</span> <span>        {
</span><span>445</span>             <span>[</span><span>MethodImpl(MethodImplOptions.Synchronized)</span><span>]</span>
<span>446</span>             <span>add</span>
<span>447</span> <span>            {
</span><span>448</span>                 this.ModelUpdate <span>=</span><span> (TextUpdateHandler)Delegate.Combine(this.ModelUpdate, value);
</span><span>449</span> <span>            }
</span><span>450</span>             <span>[</span><span>MethodImpl(MethodImplOptions.Synchronized)</span><span>]</span>
<span>451</span> <span>            remove
</span><span>452</span> <span>            {
</span><span>453</span>                 this.ModelUpdate <span>=</span><span> (TextUpdateHandler)Delegate.Remove(this.ModelUpdate, value);
</span><span>454</span> <span>            }
</span><span>455</span> <span>        }
</span><span>456</span>         <span>public</span><span> event TextUpdateHandler ActionUpdate
</span><span>457</span> <span>        {
</span><span>458</span>             <span>[</span><span>MethodImpl(MethodImplOptions.Synchronized)</span><span>]</span>
<span>459</span>             <span>add</span>
<span>460</span> <span>            {
</span><span>461</span>                 this.ActionUpdate <span>=</span><span> (TextUpdateHandler)Delegate.Combine(this.ActionUpdate, value);
</span><span>462</span> <span>            }
</span><span>463</span>             <span>[</span><span>MethodImpl(MethodImplOptions.Synchronized)</span><span>]</span>
<span>464</span> <span>            remove
</span><span>465</span> <span>            {
</span><span>466</span>                 this.ActionUpdate <span>=</span><span> (TextUpdateHandler)Delegate.Remove(this.ActionUpdate, value);
</span><span>467</span> <span>            }
</span><span>468</span> <span>        }
</span><span>469</span>         <span>public</span><span> DacType CreateDacFromSql(string sql)
</span><span>470</span> <span>        {
</span><span>471</span>             <span>return</span> this.CreateDacFromSql(sql, new Version("<span>1.1</span>.<span>1.1</span><span>"), string.Empty);
</span><span>472</span> <span>        }
</span><span>473</span>         <span>public</span><span> DacType CreateDacFromSql(string sql, Version version, string description)
</span><span>474</span> <span>        {
</span><span>475</span>             DacCompilationUnit dacCompilationUnit <span>=</span><span> new DacCompilationUnit("Dac", version, "SQL_Latin1_General_CP1_CI_AS");
</span><span>476</span>             dacCompilationUnit.Description <span>=</span><span> description;
</span><span>477</span> <span>            dacCompilationUnit.AddTSqlSourceFile("input.sql", sql);
</span><span>478</span>             DacCompilationResult dacCompilationResult <span>=</span><span> dacCompilationUnit.Compile();
</span><span>479</span>             List<span>DacCompilationError<span>></span> list <span>=</span> new List<span>DacCompilationError<span>></span><span>(dacCompilationResult.Errors);
</span><span>480</span>             <span>if</span> (list.<span>Count</span> <span>!=</span> <span>0</span><span>)
</span><span>481</span> <span>            {
</span><span>482</span>                 StringBuilder stringBuilder <span>=</span><span> new StringBuilder();
</span><span>483</span>                 stringBuilder.Append("<span>***</span>COMPILE ERROR<span>***</span><span>");
</span><span>484</span> <span>                stringBuilder.Append(Environment.NewLine);
</span><span>485</span>                 foreach (DacCompilationError <span>current</span> <span>in</span><span> list)
</span><span>486</span> <span>                {
</span><span>487</span>                     stringBuilder.Append(<span>current</span><span>.Message);
</span><span>488</span> <span>                    stringBuilder.Append(Environment.NewLine);
</span><span>489</span> <span>                }
</span><span>490</span> <span>                this.OnScriptUpdate(stringBuilder.ToString());
</span><span>491</span>                 <span>return</span> <span>null</span><span>;
</span><span>492</span> <span>            }
</span><span>493</span>             <span>return</span><span> this.NormalizeDacType(dacCompilationResult.DacType);
</span><span>494</span> <span>        }
</span><span>495</span>         <span>public</span><span> void CompareSQLScripts(string sourceSQL, string targetSQL, bool isAzure)
</span><span>496</span> <span>        {
</span><span>497</span> <span>            this.OnActionUpdate("Building Source SQL DAC");
</span><span>498</span>             DacType dacType <span>=</span> this.CreateDacFromSql(sourceSQL, new Version("<span>1.1</span>.<span>1.1</span><span>"), "V1");
</span><span>499</span> <span>            this.OnActionUpdate("Building Target SQL DAC");
</span><span>500</span>             DacType dacType2 <span>=</span> this.CreateDacFromSql(targetSQL, new Version("<span>2.2</span>.<span>2.2</span><span>"), "V2");
</span><span>501</span> <span>            this.OnActionUpdate("Preparing Incremental Upgrade Script");
</span><span>502</span>             PrepareIncrementalUpgradeScriptStep prepareIncrementalUpgradeScriptStep <span>=</span><span> new PrepareIncrementalUpgradeScriptStep(dacType.Definition, "Dac", dacType2.Definition, "Dac", this.GetDefaultDifferencerFilter(), isAzure ? ScriptTarget.SqlAzure : ScriptTarget.Sql100, false);
</span><span>503</span>             prepareIncrementalUpgradeScriptStep.<span>Execute</span><span>();
</span><span>504</span>             IEnumerable<span>ActionGroup<span>></span> incrementalUpgradeActionGroups <span>=</span><span> prepareIncrementalUpgradeScriptStep.GetIncrementalUpgradeActionGroups();
</span><span>505</span>             foreach (ActionGroup <span>current</span> <span>in</span><span> incrementalUpgradeActionGroups)
</span><span>506</span> <span>            {
</span><span>507</span>                 ActionGroupScripter actionGroupScripter <span>=</span> <span>current</span><span>.GetActionGroupScripter(ScriptTarget.Sql100);
</span><span>508</span> <span>                this.OnActionUpdate(actionGroupScripter.Description);
</span><span>509</span> <span>            }
</span><span>510</span> <span>            this.OnScriptUpdate(prepareIncrementalUpgradeScriptStep.CompleteScript);
</span><span>511</span>             this.OnModelUpdate(this.GetChangeResultOutput(dacType.Definition.Databases<span>[</span><span>"Dac"</span><span>]</span>, dacType2.Definition.Databases<span>[</span><span>"Dac"</span><span>]</span><span>));
</span><span>512</span> <span>        }
</span><span>513</span>         <span>public</span><span> string GetDatabaseScript(ServerConnection serverConnection, string databaseName)
</span><span>514</span> <span>        {
</span><span>515</span>             string input <span>=</span><span> string.Empty;
</span><span>516</span> <span>            try
</span><span>517</span> <span>            {
</span><span>518</span>                 IServer offlineDatabase <span>=</span><span> InternalUIHooks.GetOfflineDatabase(serverConnection, databaseName);
</span><span>519</span>                 PrepareDeploymentScriptStep prepareDeploymentScriptStep <span>=</span><span> new PrepareDeploymentScriptStep(offlineDatabase, databaseName, new TargetEngineInfo(serverConnection), true);
</span><span>520</span>                 prepareDeploymentScriptStep.<span>Execute</span><span>();
</span><span>521</span>                 input <span>=</span><span> prepareDeploymentScriptStep.CompleteDatabaseObjectsScript;
</span><span>522</span> <span>            }
</span><span>523</span> <span>            catch (Exception exception)
</span><span>524</span> <span>            {
</span><span>525</span> <span>                InternalUIHooks.ThrowExceptionMessage(exception);
</span><span>526</span> <span>            }
</span><span>527</span>             Regex regex <span>=</span> new Regex("<span>^</span><span>RAISERROR</span>.<span>*</span>\\nGO.<span>*</span><span>\\n", RegexOptions.Multiline);
</span><span>528</span>             <span>return</span> regex.<span>Replace</span><span>(input, Environment.NewLine);
</span><span>529</span> <span>        }
</span><span>530</span>         <span>public</span><span> void Apply(ServerConnection serverConnection, string sql, string databaseName)
</span><span>531</span> <span>        {
</span><span>532</span>             <span>Database</span> <span>database</span> <span>=</span> new Server(serverConnection).Databases<span>[</span><span>databaseName</span><span>]</span><span>;
</span><span>533</span> <span>            try
</span><span>534</span> <span>            {
</span><span>535</span>                 string <span>text</span> <span>=</span><span> "Dac";
</span><span>536</span>                 DacStore dacStore <span>=</span><span> new DacStore(serverConnection);
</span><span>537</span>                 DacDefinition dacDefinition <span>=</span> new DacDefinition(dacStore, <span>text</span><span>, databaseName);
</span><span>538</span>                 <span>if</span><span> (!dacDefinition.IsRegistered)
</span><span>539</span> <span>                {
</span><span>540</span>                     <span>text</span> <span>=</span><span> "Dac";
</span><span>541</span> <span>                    dacDefinition.Register();
</span><span>542</span> <span>                }
</span><span>543</span>                 <span>else</span>
<span>544</span> <span>                {
</span><span>545</span>                     <span>text</span> <span>=</span> dacStore.DacInstances<span>[</span><span>databaseName</span><span>]</span><span>.Type.Name;
</span><span>546</span> <span>                }
</span><span>547</span>                 DacCompilationUnit dacCompilationUnit <span>=</span> new DacCompilationUnit(<span>text</span>, new Version(<span>1</span>, <span>0</span>), <span>database</span><span>.Collation);
</span><span>548</span> <span>                dacCompilationUnit.AddTSqlSourceFile("input.sql", sql);
</span><span>549</span>                 DacCompilationResult dacCompilationResult <span>=</span><span> dacCompilationUnit.Compile();
</span><span>550</span>                 <span>if</span> (dacCompilationResult.Errors.<span>Count</span><span>DacCompilationError<span>></span>() <span>></span> <span>0</span><span>)
</span><span>551</span> <span>                {
</span><span>552</span>                     StringBuilder stringBuilder <span>=</span><span> new StringBuilder();
</span><span>553</span>                     foreach (DacCompilationError <span>current</span> <span>in</span><span> dacCompilationResult.Errors)
</span><span>554</span> <span>                    {
</span><span>555</span>                         stringBuilder.Append(<span>current</span><span>.Message);
</span><span>556</span> <span>                    }
</span><span>557</span> <span>                    throw new Exception(stringBuilder.ToString());
</span><span>558</span> <span>                }
</span><span>559</span>                 DacType dacType <span>=</span><span> dacCompilationResult.DacType;
</span><span>560</span>                 IServer offlineDatabase <span>=</span><span> InternalUIHooks.GetOfflineDatabase(serverConnection, databaseName);
</span><span>561</span>                 this.OnModelUpdate(this.GetChangeResultOutput(offlineDatabase.Databases<span>[</span><span>databaseName</span><span>]</span>, dacType.Definition.Databases<span>[</span><span>text</span><span>]</span><span>));
</span><span>562</span> <span>                this.OnScriptUpdate(dacStore.GetIncrementalUpgradeScript(databaseName, dacType));
</span><span>563</span> <span>                dacStore.IncrementalUpgrade(databaseName, dacType, new DacUpgradeOptions());
</span><span>564</span> <span>            }
</span><span>565</span> <span>            catch (Exception exception)
</span><span>566</span> <span>            {
</span><span>567</span> <span>                InternalUIHooks.ThrowExceptionMessage(exception);
</span><span>568</span> <span>            }
</span><span>569</span> <span>        }
</span><span>570</span> <span>        private string GetChangeResultOutput(IDatabase sourceDatabase, IDatabase targetDatabase)
</span><span>571</span> <span>        {
</span><span>572</span>             ChangeResult changeResult <span>=</span><span> Differencer.Compare(sourceDatabase, targetDatabase, this.GetDefaultDifferencerFilter());
</span><span>573</span>             StringBuilder stringBuilder <span>=</span><span> new StringBuilder();
</span><span>574</span>             using (XmlWriter xmlWriter <span>=</span> XmlWriter.<span>Create</span><span>(stringBuilder, new XmlWriterSettings
</span><span>575</span> <span>            {
</span><span>576</span>                 Indent <span>=</span><span> true, 
</span><span>577</span>                 IndentChars <span>=</span><span> "   ", 
</span><span>578</span>                 NewLineChars <span>=</span><span> Environment.NewLine, 
</span><span>579</span>                 CloseOutput <span>=</span><span> false
</span><span>580</span> <span>            }))
</span><span>581</span> <span>            {
</span><span>582</span> <span>                InternalUIHooks.DifferencerTestUtils.WriteChangeResult(xmlWriter, changeResult);
</span><span>583</span> <span>            }
</span><span>584</span>             <span>return</span><span> stringBuilder.ToString();
</span><span>585</span> <span>        }
</span><span>586</span> <span>        private static void ThrowExceptionMessage(Exception exception)
</span><span>587</span> <span>        {
</span><span>588</span>             StringBuilder stringBuilder <span>=</span><span> new StringBuilder();
</span><span>589</span>             <span>while</span> (exception <span>!=</span> <span>null</span><span>)
</span><span>590</span> <span>            {
</span><span>591</span>                 stringBuilder.AppendLine("<span>-></span>" <span>+</span><span> exception.Message);
</span><span>592</span>                 exception <span>=</span><span> exception.InnerException;
</span><span>593</span> <span>            }
</span><span>594</span> <span>            throw new Exception(string</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span>
登入後複製
本網站聲明
本文內容由網友自願投稿，版權歸原作者所有。本站不承擔相應的法律責任。如發現涉嫌抄襲或侵權的內容，請聯絡admin@php.cn

熱AI工具

Undresser.AI Undress

Undresser.AI Undress

人工智慧驅動的應用程序，用於創建逼真的裸體照片

AI Clothes Remover

AI Clothes Remover

用於從照片中去除衣服的線上人工智慧工具。

Undress AI Tool

Undress AI Tool

免費脫衣圖片

Clothoff.io

Clothoff.io

AI脫衣器

Video Face Swap

Video Face Swap

使用我們完全免費的人工智慧換臉工具，輕鬆在任何影片中換臉！

顯示更多

熱門文章

<🎜>：種植花園 - 完整的突變指南
3 週前 By DDD
<🎜>：泡泡膠模擬器無窮大 - 如何獲取和使用皇家鑰匙
3 週前 By 尊渡假赌尊渡假赌尊渡假赌
如何修復KB5055612無法在Windows 10中安裝？
3 週前 By DDD
北端：融合系統，解釋
3 週前 By 尊渡假赌尊渡假赌尊渡假赌
Mandragora：巫婆樹的耳語 - 如何解鎖抓鉤
3 週前 By 尊渡假赌尊渡假赌尊渡假赌
顯示更多

熱工具

記事本++7.3.1

記事本++7.3.1

好用且免費的程式碼編輯器

SublimeText3漢化版

SublimeText3漢化版

中文版，非常好用

禪工作室 13.0.1

禪工作室 13.0.1

強大的PHP整合開發環境

Dreamweaver CS6

Dreamweaver CS6

視覺化網頁開發工具

SublimeText3 Mac版

SublimeText3 Mac版

神級程式碼編輯軟體(SublimeText3)

顯示更多

熱門話題

Java教學
1664
14
CakePHP 教程
1423
52
Laravel 教程
1321
25
PHP教程
1269
29
C# 教程
1249
24
顯示更多
Related knowledge
iOS 18 新增「已復原」相簿功能 可找回遺失或損壞的照片 iOS 18 新增「已復原」相簿功能 可找回遺失或損壞的照片 Jul 18, 2024 am 05:48 AM

蘋果公司最新發布的iOS18、iPadOS18以及macOSSequoia系統為Photos應用程式增添了一項重要功能，旨在幫助用戶輕鬆恢復因各種原因遺失或損壞的照片和影片。這項新功能在Photos應用的"工具"部分引入了一個名為"已恢復"的相冊，當用戶設備中存在未納入其照片庫的圖片或影片時，該相冊將自動顯示。 "已恢復"相簿的出現為因資料庫損壞、相機應用未正確保存至照片庫或第三方應用管理照片庫時照片和視頻丟失提供了解決方案。使用者只需簡單幾步

Shanling M1 Plus 高解析度音樂播放器首次亮相，售價 1,298 元（179 美元），在 32Ω 時具有 661mW 輸出 Shanling M1 Plus 高解析度音樂播放器首次亮相，售價 1,298 元（179 美元），在 32Ω 時具有 661mW 輸出 Jul 31, 2024 am 06:56 AM

Shanling 推出了最新的便攜式音樂播放器 M1 Plus，作為先前 M1 和 M1s 型號的升級版。這款第三代「山靈系列」播放器將推出新功能，包括高階 ES9069Q DAC 和雙 SGM82

如何在PHP中處理資料庫連線錯誤 如何在PHP中處理資料庫連線錯誤 Jun 05, 2024 pm 02:16 PM

PHP處理資料庫連線報錯，可以使用下列步驟：使用mysqli_connect_errno()取得錯誤代碼。使用mysqli_connect_error()取得錯誤訊息。透過擷取並記錄這些錯誤訊息，可以輕鬆識別並解決資料庫連接問題，確保應用程式的順暢運作。

在PHP中使用MySQLi建立資料庫連線的詳盡教學 在PHP中使用MySQLi建立資料庫連線的詳盡教學 Jun 04, 2024 pm 01:42 PM

如何在PHP中使用MySQLi建立資料庫連線：包含MySQLi擴充（require_once）建立連線函數（functionconnect_to_db）呼叫連線函數（$conn=connect_to_db()）執行查詢（$result=$conn->query()）關閉連線（ $conn->close()）

如何在 Golang 中使用資料庫回呼函數？ 如何在 Golang 中使用資料庫回呼函數？ Jun 03, 2024 pm 02:20 PM

在Golang中使用資料庫回呼函數可以實現：在指定資料庫操作完成後執行自訂程式碼。透過單獨的函數新增自訂行為，無需編寫額外程式碼。回調函數可用於插入、更新、刪除和查詢操作。必須使用sql.Exec、sql.QueryRow或sql.Query函數才能使用回呼函數。

如何在 Golang 中將 JSON 資料保存到資料庫中？ 如何在 Golang 中將 JSON 資料保存到資料庫中？ Jun 06, 2024 am 11:24 AM

可以透過使用gjson函式庫或json.Unmarshal函數將JSON資料儲存到MySQL資料庫中。 gjson函式庫提供了方便的方法來解析JSON字段，而json.Unmarshal函數需要一個目標類型指標來解組JSON資料。這兩種方法都需要準備SQL語句和執行插入操作來將資料持久化到資料庫中。

如何使用C++處理資料庫連線和操作？ 如何使用C++處理資料庫連線和操作？ Jun 01, 2024 pm 07:24 PM

在C++中使用DataAccessObjects(DAO)函式庫連接和操作資料庫，包括建立資料庫連線、執行SQL查詢、插入新記錄和更新現有記錄。具體步驟為：1.包含必要的函式庫語句；2.開啟資料庫檔案；3.建立Recordset物件執行SQL查詢或操作資料；4.遍歷結果或依照特定需求更新記錄。

如何用 Golang 連接遠端資料庫？ 如何用 Golang 連接遠端資料庫？ Jun 01, 2024 pm 08:31 PM

透過Go標準庫database/sql包，可以連接到MySQL、PostgreSQL或SQLite等遠端資料庫：建立包含資料庫連接資訊的連接字串。使用sql.Open()函數開啟資料庫連線。執行SQL查詢和插入操作等資料庫操作。使用defer關閉資料庫連線以釋放資源。

See all articles