#1093 - 您不能在 FROM 子句中为更新指定目标 table 'new_keyword'

Question

我有这样的查询

 update new_keyword set key_count=key_count-1  where  id in
    (select b.id  from new_keyword b ,new_news a ,new_mudoal_label c where c.label_id=b.id and a.id=c.id and c.type=1 and c.id=186)

子查询return id 例如(1,2,3) 但是 mysql 告诉我错误

Answer 1

我用这段代码解决了我的问题

update new_keyword set key_count=key_count-1  where  id in
    (select c.label_id  from new_news a ,new_mudoal_label c where  a.id=c.id and c.type=1 and c.id=186)

#1093 - 您不能在 FROM 子句中为更新指定目标 table 'new_keyword'

#1093 - You can't specify target table 'new_keyword' for update in FROM clause

mysql

phpmyadmin

sql-update