Question

哪个SQL语句将确定一组值中的哪些值不在指定列中？例如：

{"String1","String2","String3"}

哪个SQL语句将确定哪些字符串值不在Column1的{{1}}中？

No Linq因为我正在使用VS2005。

Answer 1

试试这个：

 select *
 from 
 (
      select 'String1' as s 
      union select 'String2' 
      union select 'String3'
 ) as x
 where x.s not in (select column1 from table1)

Answer 2

试试这个：

WHERE Table1.Column1 NOT IN ("String1", "String2", "String3")

Answer 3

IN运算符

例如

SELECT COLUMN1 FROM TABLE1 WHERE COLUMN1 IN ('String1','String2','String3')

Answer 4

这可能会有所帮助，

select * from 
(
  select 'String1' as s 
  union select 'String2' 
  union select 'String3'
) as a
where not exists (select 'x' from Table1 where Column1 = a.s)

Answer 5

这个怎么样：

SELECT * FROM Table1
WHERE Table1.Column1 NOT IN 
(
'String1',
'String2',
'String3'
)

什么SQL语句将确定集合中的哪些值不在指定的列中？

5 个答案: