在WHERE子句中使用SELECT查询

Question

我想列出与where子句相关的表中的行，该子句需要比较两个表中的记录列表

SELECT DISTINCT (CONA.DOCUMENTID), CONA.CONTENTID 
FROM TABLEA AS CONA 
INNER JOIN TABLEB AS CTAGA ON CTAGA.CONTENTID = CONA.CONTENTID
WHERE CONA.DOCUMENTID LIKE 'PM%' 
AND (
  SELECT TAGID 
  FROM  TABLEB 
  WHERE CTAGA.CONTENTID = CONA.CONTENTID
) IN (SELECT TAGID FROM TABLEC)

在上面的SELECT TAGID FROM TABLEB WHERE CTAGA.CONTENTID = CONA.CONTENTID将具有

abc，def，ghi，jkl，mno

和

SELECT TAGID FROM TABLEC将具有abc，def，ghi，jkl，mno，pqr，stu

是否可以检查列表A中的所有记录？

使用上述我另外在表中的多个值

Answer 1

尝试这个

 SELECT DISTINCT (CONA.DOCUMENTID),TAGID FROM TABLEB As CTAGA
 Join TABLEC As CONA  On CTAGA.CONTENTID = CONA.CONTENTID
 Where CTGA.TAGID in (SELECT TAGID FROM TABLEC)
 AND CONA.DOCUMENTID LIKE 'PM%'

Answer 2

试试这个查询

SELECT DISTINCT (CONA.DOCUMENTID), CONA.CONTENTID 
FROM TABLEA AS CONA INNER JOIN TABLEB AS CTAGA ON CTAGA.CONTENTID = CONA.CONTENTID 
                      AND CTAGA.TAGID IN (SELECT TAGID FROM TABLEC)                    
WHERE CONA.DOCUMENTID LIKE 'PM%'

要么

SELECT DISTINCT (CONA.DOCUMENTID), CONA.CONTENTID 
FROM TABLEA AS CONA INNER JOIN TABLEB AS CTAGA ON CTAGA.CONTENTID = CONA.CONTENTID                                          
WHERE CONA.DOCUMENTID LIKE 'PM%' AND EXISTS (
                                             SELECT 1 
                                             FROM TABLEC
                                             WHERE CTAGA.TAGID = TABLEC.TAGID
                                             )