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如何将SQL Server导入Oracle指导

Jun 07, 2016 pm 03:07 PM
oracle server sql how import guide

欢迎进入Oracle社区论坛,与200万技术人员互动交流 >>进入 在我们使用SQL Server数据库的过程中,有时需要将SQLServer数据导出,导入到其他的数据库中,比如导入到Oracle中。 假设要将SQL Server中的Northwind数据库中的Products表导出到Oracle的Scott用户

欢迎进入Oracle社区论坛,与200万技术人员互动交流 >>进入

    在我们使用SQL Server数据库的过程中,有时需要将SQLServer数据导出,导入到其他的数据库中,比如导入到Oracle中。

    假设要将SQL Server中的Northwind数据库中的Products表导出到Oracle的Scott用户

    首先需要有安装SQL Server企业版

    1.打开工具:

    开始->程序->MicrosoftSQLServer->导入和SQL Server数据导出数据

    2.下一步,选择数据源

    [数据源]选择“用于SQL Server的Microsoft OLE DB提供程序”,这应该是缺省值。

    [服务器]选择要导出数据的服务器,如果是本机,选择(local)

    [数据库]选择要导出的数据所在的库,这里选择Northwind

    3.下一步,选择目的

    [目的]选择Microsoft ODBC for Oracle

    [DSN]选择用户/系统DSN一项,然后在下拉列表框中找一个已经连接到了Scott用户的DSN名称。

    如果下拉列表中没有,点下拉列表框右侧的[新建],出现创建新数据源界面。

    接下来选择系统数据源,下一步,在驱动程序列表中选择Microsoft ODBC for Oracle

    下一步,完成,出现Microsoft ODBC for Oracle安装界面

    [数据源名称]随便输入,比如sss

    [说明]可以不填

    [用户名称]填入要SQL Server数据导出到的Oracle用户名称,这里是scott

    [服务器]填入要连接到Oracle服务器所使用的服务名,比方说使用sqlplusscott/tiger@server1可以连接到数据库,那么这里就填入server1。如果本机就是服务器,使用sqlplusscott/tiger即可连接到数据库,这里空着不填即可。

    这样就创建好了一个数据源sss,保证下拉列表框中选择了sss一项。

    [用户名]填入SQL Server数据导出到的Oracle用户名称,这里是scott

    [密码]填入SQL Server数据导出到的Oracle用户使用的密码,这里是tiger

    4.下一步,指定表复制或查询

    如果要导出的内容是整个表,选择[从源数据库复制表和视图]

    如果要导出的内容是表的一部分列,行,可以选择[用一条查询指定要传输的数据],这时需要写出一个查询语句

    这里选择第一项[从源数据库复制表和视图]

    5.下一步,选择源表和视图

    点中要导出的表Products一行的复选框,目的、转换两栏就会出现内容。

    目的可以用来选择表名。转换可以用来修改列的数据类型或是整个建表的SQL语句

    6.下一步,保存、调度和复制包

    选中立即运行

    7.下一步,正在完成DTS导入/导出向导

    8.完成

    提示“成功地将n个表从Microsoft SQLServer复制到了Oracle”

    9.完成,关闭导入导出程序

    注意:因为oracle的表名都是大写的,而SQL的表可能是大小混写的,所以导入后在oracle里查不到该表,比如这个Products表在oracle里查询就应该写成select* from scott."Products";为了方便查询可以通过批量修改表名为大写以便后面导数据的工作。

    ---导完数据后执行下面语句,生成把表名修改成大写的操作

    select 'ALTER TABLE '||'"'||table_name||'"'||' RENAME TO '||upper(table_name)||';' from user_tab_comments;

    把生成的文件执行即可把此用户下的所有表名修改成大写。

 

如何将SQL Server导入Oracle指导

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