Question

这在SQL Server中不起作用：

SELECT ID, SQNCNO
FROM JUID AS MID
WHERE 
     (ID, SQNCNO) IN (SELECT NM.ID, NM.SQNCNO
                      FROM JUNM AS NM
                      WHERE (LAST_NAME LIKE 'TESTCASE%')) 
ORDER BY ID, SQNCNO

它适用于DB2和Oracle。问题是WHERE (ID, SQNCNO)。谁能告诉我如何在SQL Server中使这个SQL工作？

Answer 1

Exists是以这种方式创建的

SELECT ID, SQNCNO
FROM JUID AS MID
WHERE Exists(SELECT 1 FROM JUNM AS NM
                      WHERE 
                          NM.ID = MID.ID 
                          and NM.SQNCNO = MID.SQNCNO 
                          and (LAST_NAME LIKE 'TESTCASE%')) 
ORDER BY ID, SQNCNO

Answer 2

在SQL Server中，您必须创建两个子查询

SELECT ID, SQNCNO
  FROM JUID AS MID
  WHERE (ID IN (SELECT NM.ID
                   FROM JUNM AS NM
                   WHERE (LAST_NAME LIKE 'TESTCASE%')) 
OR -- AND?
SQNCNO IN (SELECT NM.SQNCNO
                   FROM JUNM AS NM
                   WHERE (LAST_NAME LIKE 'TESTCASE%')) 
  ORDER BY ID, SQNCNO

SQL Server：从x中选择*其中（a，b）in（从z中选择a，b）

2 个答案: