SQL Server 2005中查询并修改数据的不合理设计
在SQL Server 2000中，我们想在数据库表中直接修改数据，一般的操作方法是：在SQL Server 企业管理中，选择相应的表，点击右键，在“打开表”中选择“查询”，在SQL编辑窗口中输入SQL语句找到要修改的记录，然后在结果窗口中直接修改相应的字段。
那在SQL Server 2005中，需要怎样操作呢？
在SQL Server Management Studio中，找到相应的表，点击右键，选择“Open Table”，然后点击“Show Sql Pane”按钮，在Sql Pane窗口中输入SQL语句找到要修改的记录，然后在结果窗口中直接修改相应的字段。
也许你觉得SQL Server 2005与SQL Server 2000的操作没什么区别。
但问题就出在选择“Open Table”时，当“Open Table”，SQL Server Management Studio会执行查询表中所有记录的操作，如果表中数据很多，就会有个等待查询的时间，你会为这个等待很恼火，因为你只是想修改某个记录，这个查询根本是多余的。在SQL Server 2000中也有“Open Table”，也是查询所有记录，但SQL Server 2000还提供了“查询”操作，就是文章开始讲到的操作方法。
你也许会说SQL Server Management Studio中提供了“Script Table as”操作，但通过Script Table as的Select To查询的结果是只读的，无法进行修改。如果通过“Update to”进行操作也不方便，因为多数情况下，在修改数据之前，先要看一下原来的数据。如果直接Update，可能会由于SQL语句中输错了条件而进行了不是期望的修改。
我也是刚刚接触SQL Serve r2005，也许SQL Server 2005提供了其他方便的操作方法，但我没找到。如果你知道，欢迎你告诉我。
出处：dudu-快乐程序员
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