SELECT V.NUM_ID,V.XMFROM t_MID_RS_PARTY VWHERE V.ZGH IN('060002','100178','120283') SELECT V.ZGHFRO ...
例如表名为Course 需要查询出name重复的有那些 解答如下: 补充: 如:查询每个姓名出现大于 次,SQL如下 SELECT COUNT NAME as 出现次数 , NAME FROM 表名GROUP BY NAME HAVING count NAME gt ORDER BY 出现次数 DESC ...
2017-02-20 17:39 0 18038 推荐指数:
SELECT V.NUM_ID,V.XMFROM t_MID_RS_PARTY VWHERE V.ZGH IN('060002','100178','120283') SELECT V.ZGHFRO ...
select * from (select * from ldcode where 1=1 order by code desc) where rownum<11--这样写是对的 select ...
这是查询有两条或者两条以上的数据 --先分组,在统计 select a.code from ldcode a where 1=1 GROUP BY a.code HAVING COUNT(a.code)> 1 这是查询有3条相同数据的情况 --先分组,在统计 select ...
根据某个字段查找该字段在哪里表中存在 ...
SELECT * from information_schema.columns where TABLE_SCHEMA='数据库名' and COLUMN_NAME='字段名' ...
select zyzlb,nation,frzw from jgdx where zyzlb in (select zyzlb from jgdx group by zyzlb having COU ...
SQLServer数据库查询带有某个字段的所有表名: (1)精确查询语句如下: SELECT [name] FROM [库名].[dbo].sysobjects WHERE id IN (SELECT id FROM [库名].[dbo].syscolumns WHERE name ...
select * from N041_湖北省房县人民医院 where bah in (select bah from N041_湖北省房县人民医院 group by bah having count( ...