sql 多条件查询的一种简单的方法 以后我们做多条件查询,一种是排列结合,另一种是动态拼接SQL 如:我们要有两个条件,一个日期 @addDate,一个是 @name 第一种写法是 if ( @addDate is not null) and ( @name <> '') select * from table where addDate = @addDate and name = @name else if ( @addDate is not null) and ( @name = '') select * from table where addDate = @addDate else if( @addDate is null) and ( @name <> '') select * from table where and name = @name else if( @addDate is null) and ( @name = '') select * from table 第二种就是动态组成SQL,通过exec来执行,我就不写, 昨天我想到一种办法 select * from table where (addDate = @addDate or @addDate is null) and (name = @name or @name = '') 结果一调试,成功, 一点想法,有更好方法的,请指教!~