SQL select where 子句中的语句

Question

您好，我正在尝试执行查询，但似乎无法正确执行。

SELECT *
FROM   table
WHERE  id IN (SELECT *
              FROM   table
              WHERE  description = 'A')
AND description = 'B'

以上是我得到的查询，select * from table where description = A 仅在运行时按预期工作，我只需要使 where 子句起作用，这样我就可以看到任何具有描述的 ID A 和 B.

Answer 1

where 子句中不需要 select

SELECT *
FROM table
WHERE id IN ('A', 'B')

Answer 2

当我假设您只需要 id 列时，您将从子查询中获取多个列：

SELECT *
FROM   table
WHERE  id IN (SELECT id
          FROM   table
          WHERE  description = 'A')
   AND description = 'B'

Answer 3

应该是：

select * from table where id in (select id from table where description = 'A') and description = 'B'

但是如果你想获得描述为 A 或B、那你应该写成

select * from table where description = 'A' or description = 'B'

或

select * from table where description in ('A','B')

Answer 4

试试这个：

SELECT *
FROM table
WHERE description IN ('A', 'B')

Answer 5

SELECT distinct AnaTablo.Id , AnaTablo.FirmaAdi , AnaTablo.FirmaId , AnaTablo.KayitTarihi ,
users.Email Personel,   (SELECT top 1 sabitler.Ayar from tblSabitAyarlar sabitler WHERE sabitler.Tur = 29 and sabitler.Deger in 
(SELECT top 1 IslemId from tblEFaturaTakipIslem Islem WHERE AnaTablo.Id = Islem.EFaturaTakipId order by KayitTarihi desc))YapilanIslem,
AnaTablo.Eposta , AnaTablo.Aciklama
from tblEFaturaTakip AnaTablo left join AspNetUsers users on AnaTablo.PersonelId  = users.Id

SQL select where 子句中的语句

SQL select statement in where clause

sql

sql-server

select

where-clause

sql-server-2008