NOT IN有多个select语句

Question

我需要执行以下操作，但是T-SQL在NOT IN中有多个select语句的问题

select * from table1 where ParamID not in 
(select paramid from tbl2 
 or 
 select paramid from tbl3 
 or 
 select paramid from tbl3) 

我收到错误：选择

附近的语法不正确

还有另一种方法可以做我想做的事情。

Answer 1

使用UNION，例如：

select * from table1 where ParamID not in 
(select paramid from tbl2 
 UNION 
 select paramid from tbl3 
 UNION
 select paramid from tbl3) 

Answer 2

我会改用NOT EXISTS：

select t.* 
from table1 t
where not exists (select 1 from tbl2 where paramid = t.paramid) or
      not exists (select 1 from tbl3 where paramid = t.paramid);

Answer 3

试试这个..

select * from table1 where ParamID not in 
(select paramid from tbl2 
 union all 
 select paramid from tbl3 
 union all 
 select paramid from tbl3)