SQL分页语句
一、比较万能的分页:
sql代码:
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select top 每页显示的记录数 * from topic where id not in
( select top (当前的页数-1)×每页显示的记录数 id from topic order by id desc )
order by id desc
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需要注意的是在access中不能是top 0,所以如果数据只有一页的话就得做判断了。。
二、SQL2005中的分页代码:
sql代码:
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--讲查询出来的结果集作为一张临时表 with tempTable as (
select Row_Number() over ( order by id desc ) as RowNum, * from tableName
) --从临时表中取得指定行号区间的行 SELECT * FROM tempTable where RowNum between @startIndex and @endIndex
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注:ROW_NUMBER() OVER (ORDER BY id desc)为SQL2005新增函数,表示取出每一列的行号
三、分页存储过程SQL代码:
1、第一种UP_GetRecordByPage,包含计算总条数(推荐)
SET ANSI_NULLS ON
GO SET QUOTED_IDENTIFIER ON
GO ------------------------------------ --用途:分页存储过程 --说明: ------------------------------------ CREATE PROCEDURE [dbo].[UP_GetRecordByPage]
@tblName varchar (255), -- 表名
@fldName varchar (255), -- 排序字段名
@PageSize int = 10, -- 页尺寸
@PageIndex int = 1, -- 页码
@IsReCount bit = 0, -- 返回记录总数, 非 0 值则返回
@OrderType bit = 0, -- 设置排序类型, 非 0 值则降序
@strWhere varchar (1000) = '1=1' -- 查询条件 (注意: 不要加 where)
AS declare @ begin int ,@ end int ,@sql varchar (4000),@ order varchar (5)
set @ begin =@PageSize* (@PageIndex-1) +1
set @ end =@ begin +@PageSize-1
set @ order = ''
if(@OrderType=1) set @ order = ' desc'
set @sql= '
select * from ( select ROW_NUMBER() over(order by ' + @fldName + @ order + ' ) as od,
* from ' +@tblName + '
where ' + @strWhere +
') as tbl where od between ' + rtrim(ltrim(str(@ begin )))+ ' and ' + rtrim(ltrim(str(@ end )))
exec (@sql)
if(@IsReCount=1) exec ( 'select count(*) from ' + @tblName+ ' where ' +@strWhere)
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用法:
/// <summary> /// 分页获取数据列表
/// </summary>
public DataSet GetList( int pageSize, int pageIndex, string strWhere, bool isCount)
{
SqlParameter[] parameters = {
new SqlParameter( "@tblName" , SqlDbType.VarChar, 255),
new SqlParameter( "@fldName" , SqlDbType.VarChar, 255),
new SqlParameter( "@pageSize" , SqlDbType.Int),
new SqlParameter( "@pageIndex" , SqlDbType.Int),
new SqlParameter( "@IsReCount" , SqlDbType.Bit),
new SqlParameter( "@OrderType" , SqlDbType.Bit),
new SqlParameter( "@strWhere" , SqlDbType.VarChar,1000),
};
parameters[0].Value = "Whir_MemberDownRuleValue" ;
parameters[1].Value = "MemberLever" ;
parameters[2].Value = pageSize;
parameters[3].Value = pageIndex;
if (isCount){
parameters[4].Value = 1;
}
else {
parameters[4].Value = 0;
}
parameters[5].Value = 0;
parameters[6].Value = strWhere;
return DbHelperSQL.RunProcedure( "UP_GetRecordByPage" ,parameters, "ds" );
}
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2、sql代码:(不带计算总条数)
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SET ANSI_NULLS ON
GO SET QUOTED_IDENTIFIER ON
GO -- ============================================= -- Author: 牛腩 -- Create date: 2009-07-22 12:41 -- Description: 分页,用到了ROW_NUMBER() -- ============================================= ALTER PROCEDURE [dbo].[proc_ShowPage]
@tblName varchar (255), -- 表名,也可传入inner join内连接
@strGetFields varchar (1000) = '*' , -- 需要返回的列,默认*
@strOrder varchar (255)= '' , -- 排序的字段名,必填
@strOrderType varchar (10)= 'ASC' , -- 排序的方式,默认ASC
@PageSize int = 10, -- 页尺寸,默认10
@PageIndex int = 1, -- 页码,默认1
@strWhere varchar (1500) = '' -- 查询条件 (注意: 不要加 where)
AS declare @strSQL varchar (5000)
if @strWhere != ''
set @strWhere= ' where ' +@strWhere
set @strSQL=
'SELECT * FROM (' +
'SELECT ROW_NUMBER() OVER (ORDER BY ' +@strOrder+ ' ' +@strOrderType+ ') AS pos,' +@strGetFields+ ' ' +
'FROM [' +@tblName+ '] ' +@strWhere+
') AS sp WHERE pos BETWEEN ' +str((@PageIndex-1)*@PageSize+1)+ ' AND ' +str(@PageIndex*@PageSize)
exec (@strSQL)
print @strSQL -- 测试用,可在查询的时候看到生成的SQL语句
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