SQL查询中的Where子句
如何在then子句中添加不等于运算? 比如说SQL查询中的Where子句,sql,Sql,如何在then子句中添加不等于运算? 比如说 @Sample varchar(50) Select * from table Where ISNULL(table.column1, '') = CASE WHEN @Sample = '1' THEN '500' WHEN @Sample = '0' THEN '600' ELSE (NOT EQUAL T
@Sample varchar(50)
Select * from table
Where
ISNULL(table.column1, '') = CASE WHEN @Sample = '1' THEN '500'
WHEN @Sample = '0' THEN '600'
ELSE (NOT EQUAL TO 500)
END
去掉
大小写
表达式:
select * from table
where
(@Sample='1' and table.column1 = '500') or
(@Sample='0' and table.column1 = '600') or
(@Sample not in ('0','1') and COALESCE(table.column1,'') <> '500')
从表中选择*
哪里
(@Sample='1'和table.column1='500')或
(@Sample='0'和table.column1='600')或
(@Sample不在('0','1')和COALESCE(表1.column1')'500')
摆脱案例
表达式:
select * from table
where
(@Sample='1' and table.column1 = '500') or
(@Sample='0' and table.column1 = '600') or
(@Sample not in ('0','1') and COALESCE(table.column1,'') <> '500')
从表中选择*
哪里
(@Sample='1'和table.column1='500')或
(@Sample='0'和table.column1='600')或
(@Sample不在('0','1')和COALESCE(表1.column1')'500')
你想返回什么来代替不等于500
?我想返回所有不等于500的结果..你想返回什么来代替不等于500
?我想返回所有不等于500的结果。。