1.查询第二个字母是t或者a的雇员的全部信息 1 select*2 from employees 3 where firstname like '_[t,a]%' 注意:在sql中%表示字符串,所以不可像matlab一样用其注释,两个双斜线好像也不行,/*/可以,有网友说sql单行注释为-2.更改字段名 ...
SQLServer分页查询是我们经常会用到的功能,下面就为你介绍分页查询的相关语句,希望对您学习SQLServer分页查询方面能有所帮助。SQLServer2000:SELECT TOP@pagesize*FROM TABLE_NAME WHERE id not in(SELECT TOP@pagesize*(@page-1)id ...
select a.id,a.gamePassport,a.name,a.money,a.chips,(select count(b.id)from Extension as b where b.aId=a.userId)as num,(select c.type from PersonnelType as c where c.id=a.typeId)as ...难道sqlserver的子查询不能当做查询条件吗?
一、列出数据库 1.列出所有库 1 2 3 use master;go select name,dbid from master.dbo.sysdatabases 2.只列出用户库 1 2 3 use master;go select name,dbid from master.dbo.sysdatabases where dbid>4;二、列出库中的表 1....
select a.id,a.gamePassport,a.name,a.money,a.chips,(select count(b.id)from Extension as b where b.aId=a.userId)as num,(select c.type from PersonnelType as c where c.id=a.typeId)as ...难道sqlserver的子查询不能当做查询条件吗?
select a.id,a.gamePassport,a.name,a.money,a.chips,(select count(b.id)from Extension as b where b.aId=a.userId)as num,(select c.type from PersonnelType as c where c.id=a.typeId)as ...难道sqlserver的子查询不能当做查询条件吗?