SET ANSI_NULLS ON & SET QUOTED_IDENTIFIER ON 浅析
2010-10-09 15:19
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这些是 SQL-92 设置语句,使 SQL Server 2000/2005 遵从 SQL-92 规则。
当 SET QUOTED_IDENTIFIER 为 ON 时,标识符可以由双引号分隔,而文字必须由单引号分隔。
当 SET QUOTED_IDENTIFIER 为 OFF 时,标识符不可加引号,且必须符合所有 Transact-SQL 标识符规则。
当 SET QUOTED_IDENTIFIER 为 ON 时,标识符可以由双引号分隔,而文字必须由单引号分隔。
当 SET QUOTED_IDENTIFIER 为 OFF 时,标识符不可加引号,且必须符合所有 Transact-SQL 标识符规则。
号一样的值。  ] SET ANSI_NULLS OFF --时,当column中包含 null 值时,使用=号会被选中,否则不能选中,但可使用is null select * from Table_Name where Column_Name = null
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