报错的sql语句sql
①select * from (select t.*,rownum r from (select * from users where 1=1 and pwd=11 order by id asc) t where rownum<=3) where r>=1;ide
执行成功的sql语句it
②select id,name,pwd,email,tel,birthday,grade from (select t.*,rownum r from (select * from users where 1=1 and pwd=11 order by id asc) t where rownum<=3) where r>=1;class
①中的查询结果集中有rownum伪列，而users表中并不存在此列，故会报数据类型不一致的错误email
只需在最外层中把users表中存在的列给过滤出来便可select