mysql更新表数据时报错 You can't specify target table 'RES_CATALOG

You can't specify target table for update in FROM clause含义:不能在同一表中查询的数据作为同一表的更新数据。

将sql语句

UPDATE RES_CATALOG_CLASSIFY
SET CATALOG_SORT = CATALOG_SORT + 1
WHEREID = (SELECTIDFROM`res_catalog_classify`WHEREPARENT_ID = '001'AND CATALOG_SORT = 7)

改为

UPDATE RES_CATALOG_CLASSIFY
SET CATALOG_SORT = CATALOG_SORT + 1
WHEREID = (SELECT a.ID FROM (SELECTIDFROM`res_catalog_classify`WHEREPARENT_ID = '001'AND CATALOG_SORT = 7) a)

就可以了

转载于:https://www.cnblogs.com/cailijuan/p/9914036.html

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mysql更新表数据时报错 You can't specify target table 'RES_CATALOG_CLASSIFY' for update in FROM clause...

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