SELECT V.NUM_ID,V.XMFROM t_MID_RS_PARTY VWHERE V.ZGH IN('060002','100178','120283') SELECT V.ZGHFRO ...
例如表名為Course 需要查詢出name重復的有那些 解答如下: 補充: 如:查詢每個姓名出現大於 次,SQL如下 SELECT COUNT NAME as 出現次數 , NAME FROM 表名GROUP BY NAME HAVING count NAME gt ORDER BY 出現次數 DESC ...
2017-02-20 17:39 0 18038 推薦指數:
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--這樣寫是對的 select ...
這是查詢有兩條或者兩條以上的數據 --先分組,在統計 select a.code from ldcode a where 1=1 GROUP BY a.code HAVING COUNT(a.code)> 1 這是查詢有3條相同數據的情況 --先分組,在統計 select ...
根據某個字段查找該字段在哪里表中存在 ...
SELECT * from information_schema.columns where TABLE_SCHEMA='數據庫名' 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數據庫查詢帶有某個字段的所有表名: (1)精確查詢語句如下: SELECT [name] FROM [庫名].[dbo].sysobjects WHERE id IN (SELECT id FROM [庫名].[dbo].syscolumns WHERE name ...
select * from N041_湖北省房縣人民醫院 where bah in (select bah from N041_湖北省房縣人民醫院 group by bah having count( ...