sql语句问题,求解,急!!
select mail,nickname from newregister where nickname in (select name from custom1 where company = '"+lbl_com_cn.Text+"')。
第一行是top 1
如何取第二行,第三行数据呢?
select top 2 from xxx where not in (select top 1 from xxx)这如何嵌套进去呢?
求大神解答
[解决办法]
用row_number()也许好处理一些
[解决办法]
SELECT *, Row_Number() OVER (partition by nickname ORDER BY mail desc) as rownum, mail,nickname from newregister where nickname in (select name from custom1 where company = '"+lbl_com_cn.Text+"')
where rownum=1;2;3;.....
[解决办法]
Select * From (Select Row_Number() Over(Order by Id desc) as row,* from xxx where ....) T Where T.row Between 1 and 2
[解决办法]
什么?
select top 1 from xxx where name not in (select top 1 name from xxx)
[解决办法]
可用
public static DataTable SelectPage(int pageStart, int pageSize, string SqlString)
{
SqlDataAdapter Adapter = new SqlDataAdapter();
DataTable Table = new DataTable();
using (SqlConnection connetion = new SqlConnection(connectionString))
{
Adapter.SelectCommand = new SqlCommand(SqlString, connetion);
Adapter.Fill(pageStart, pageSize, Table);
return Table;
}
}
[解决办法]
教你一个很灵活的语句:
select * from
{
select Row_Number() over(Order by (xx)Fsalary Desc) as rownum,(xx)Fnumber from T_Employee as e
}
where e.rownum >= 5 and e.rownum <= 8.
连范围都可以取,
就是子查询!这是例子,具体我也不知道你的需求!