第一种方法: select a.* from ASSET_MAINTAIN a inner join ASSET_MAINTAIN b on a.asset_id=b.asset_id and a ...
第一种方法: select a. from ASSET MAINTAIN a inner join ASSET MAINTAIN b on a.asset id b.asset id and a.rowid b.rowid 结果如下: 第二种方法: select from ASSET MAINTAIN n where n.asset id in select m.asset id from ASS ...
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第一种方法: select a.* from ASSET_MAINTAIN a inner join ASSET_MAINTAIN b on a.asset_id=b.asset_id and a ...
SQL查询某一字段重复的数据: ...
查询出重复记录 select * from 数据表 WHERE 重复记录字段 in ( select 重复记录字段 from 数据表 group by 重复记录字段 having count(重复记录字段)>1) ...
--某一位取反select id ,flag,(flag + 1) - BITAND(flag, 1) * 2 from SYS_INFO t UPDATE SYS__INFO SET FLAG=((flag + 1) - BITAND(flag, 1) * 2) Where id=105 ...
sql某一表中重复某一字段重复记录查询与处理 1.查询出重复记录 select 重复记录字段 form 数据表 group by houseno having count(重复记录字段)>1 2. ...
select * from t_bus_shop_type WHERE `school_id` = 1 or `school_id` is NULL and `status` != 3; ...