带有JOIN的Oracle DELETE sql不起作用

本文介绍了带有JOIN的Oracle DELETE sql不起作用的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我的delete语句在Oracle中返回933错误，我不确定是什么错误-

My delete statement returns a 933 error in Oracle, I'm not sure what is wrong-

DELETE b
from temp a
JOIN
  fact_tab b
on a.col1 = b.col1
and a.col2 = b.col2
and a.col3 = b.col3;

两个表都没有主键.选择语句在同一件事上起作用-

Both tables dont have a primary key. select statement on the same thing works-

select *
from temp a
JOIN
  fact_tab b
on a.col1 = b.col1
and a.col2 = b.col2
and a.col3 = b.col3;

推荐答案

Oracle不允许直接在DELETE语句中加入JOIN.

Oracle doesn't allow JOIN in a DELETE statement directly like that.

您可以通过以下方式进行删除:

You could do the delete in the following way:

DELETE
FROM fact_tab
WHERE ROWID IN
  (SELECT b.rowid
  FROM temp a
  JOIN fact_tab b
  ON a.col1  = b.col1
  AND A.col2 = b.col2
  AND A.col3 = b.col3
  );

您还可以使用WHERE EXISTS子句.

这篇关于带有JOIN的Oracle DELETE sql不起作用的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！