使用mysql中经常会遇到的问题，记录下来

转自： http://database.e800.com.cn/articles/2007/630/1183147360019880660_1.html

select bid from board where not in (select bid from favorite)

但在

mysql里就提示SQL语句的语法不对，“...near ''select bid from favorite)''

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在MySQL中下列语句还不能工作：

SELECT * FROM table1 WHERE id IN (SELECT id

FROM table2);

SELECT * FROM table1 WHERE id NOT IN (SELECT id FROM

table2);

然而，在很多情况下，你可以重写查询，而不用子选择：

SELECT table1.* FROM

table1,table2 WHERE table1.id=table2.id;

SELECT table1.* FROM table1

LEFT JOIN table2 ON table1.id=table2.id where table2.id IS NULL

select a.user_name from tmp_user_user a left outer join briousr2 b

on a.user_name=b.user_name where b.user_name is null and a.user_name not

like ''%0%''