我有一个在 MySQL 中运行良好的查询,但是当我在 Oracle 上运行它时出现以下错误:
I have a query which works fine in MySQL, but when I run it on Oracle I get the following error:
SQL 错误:ORA-00933:SQL 命令未正确结束
00933. 00000 - SQL 命令未正确结束"
SQL Error: ORA-00933: SQL command not properly ended
00933. 00000 - "SQL command not properly ended"
查询是:
UPDATE table1
INNER JOIN table2 ON table1.value = table2.DESC
SET table1.value = table2.CODE
WHERE table1.UPDATETYPE='blah';
该语法在 Oracle 中无效.你可以这样做:
That syntax isn't valid in Oracle. You can do this:
UPDATE table1 SET table1.value = (SELECT table2.CODE
FROM table2
WHERE table1.value = table2.DESC)
WHERE table1.UPDATETYPE='blah'
AND EXISTS (SELECT table2.CODE
FROM table2
WHERE table1.value = table2.DESC);
或者你可能能够做到这一点:
Or you might be able to do this:
UPDATE
(SELECT table1.value as OLD, table2.CODE as NEW
FROM table1
INNER JOIN table2
ON table1.value = table2.DESC
WHERE table1.UPDATETYPE='blah'
) t
SET t.OLD = t.NEW
这取决于 Oracle 是否认为内联视图可更新(要更新第二个语句取决于列出的一些规则此处).
It depends if the inline view is considered updateable by Oracle ( To be updatable for the second statement depends on some rules listed here ).
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