在Oracle中使用Join查询更新 [英] Update with Join query in Oracle
本文介绍了在Oracle中使用Join查询更新的处理方法,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
查询中出了什么问题? (它会无限期执行)
what is wrong in query? (it executes indefinitely)
UPDATE table1 t1 SET (t1.col,t1.Output) = (
SELECT t2.col, t3.Output + t2.col
FROM tabl2 t3
LEFT JOIN table1 t2 ON t3.Join_Key = t2.Join_Key
WHERE t2.col is not NULL);
请帮帮我.
推荐答案
使用通用的table1,table2和join_key引用,您的查询没有任何意义.
Your query does not make a whole lot of sense with the generic table1, table2, and join_key references.
如果这不是您要查找的内容,那么获取一些示例数据将有助于您更好地了解要查找的结果.
If this is not what you are looking for, it would be helpful to have some sample data to get a better idea of what results you are looking for.
update table1 t1
set t1.col = (select t2.col
from table2 t2
where t1.join_key = t2.join_key(+)
and t1.col is not null),
t1.output = (select t2.output + t1.col
from table2 t2
where t1.join_key = t2.join_key(+)
and t1.col is not null);
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