DB2删除内在连接

Question

从其他表中有匹配记录的表格中删除。 我尝试了这种不同的变体，但是这个返回：

SQL错误[42601]：[SQL0199]关键字内在不期望。有效令牌：使用skip等待与fetch限制顺序在偏移的位置。

它基本上是一个跨库 /交叉数据库，但无法让DB2进行播放。 如果我将删除替换为select *

 DELETE a
  FROM INHOUSE.ANDREWCAT a
   INNER JOIN ERPLIB.SRBPRG b ON
   a.PSPRDC  = b.PGPRDC
   INNER JOIN ERPLIB.SRBRSD  c 
   ON 
    b.PGIRGP = c.RDSRTY 
   AND c.RDTOFI = a.EPNUM AND c.RDSRTY = c.RDWHAT 
   AND a.EPNUM = 'REM104'

DB2不支持您使用的语法。
Instead：

Answer 1

我的db2是v11.5.7 假设唯一的是目标表的pk

Convert

DELETE FROM targetTable tt
INNER JOIN referenceTable rt ON rt.fk = tt.fk
AND ...
AND tt.UNIQUEID = rt.UNIQUEID 

Answer 2

DELETE FROM targetTable x
WHERE EXISTS (SELECT * FROM targetTable
INNER JOIN referenceTable rt ON ON rt.fk = tt.fk
AND ...
AND tt.UNIQUEID = rt.UNIQUEID);

P.S参考

Https：//www.ibm.com/docs/en/i/7.4？topic =subqueries-example-corlecame-correlated-subquery-ingquery-in-delete-netement