USE [QiuZhi_DB]
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
--创建存储过程
create PROCEDURE [dbo].[PageShow]
(
---此存储过程不能排序多个字段,排序字段必须为唯一的,比如用阅读量排序就会出现异常。其他的分页还是比较高效的
@tblName varchar(max), -- 表名
@strGetFields varchar(max) = ‘*‘, -- 需要返回的列
@fldName varchar(max)=‘‘, -- 排序的字段名
@joinfldName varchar(max)=‘‘,--排序的时候,用到字段(用于防止多表查询第二页的时候出错)
@PageSize int = 10, -- 页尺寸
@PageIndex int = 1, -- 页码
@doCount 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(max) = ‘‘ -- 查询条件 (注意: 不要加 where)
)
AS
declare @strSQL varchar(5000) -- 主语句
declare @strTmp varchar(110) -- 临时变量
declare @strOrder varchar(400) -- 排序类型
if @doCount != 0
begin
if @strWhere !=‘‘
set @strSQL = ‘select count(*) as Total from ‘ + @tblName + ‘ where ‘[email protected]
else
set @strSQL = ‘select count(*) as Total from ‘ + @tblName + ‘‘
end
--以上代码的意思是如果@doCount传递过来的不是0,就执行总数统计。以下的所有代码都是@doCount为0的情况
else
begin
if @OrderType != 0
begin
set @strTmp = ‘<(select min‘
set @strOrder = ‘ order by ‘ + @fldName +‘ desc‘
--如果@OrderType不是0,就执行降序,这句很重要!
end
else
begin
set @strTmp = ‘>(select max‘
set @strOrder = ‘ order by ‘ + @fldName +‘ asc‘
end
if @PageIndex = 1
begin
if @strWhere != ‘‘
set @strSQL = ‘select top ‘ + str(@PageSize) +‘ ‘[email protected]+ ‘ from ‘ + @tblName + ‘ where ‘ + @strWhere + ‘ ‘ + @strOrder
else
set @strSQL = ‘select top ‘ + str(@PageSize) +‘ ‘[email protected]+ ‘ from ‘+ @tblName + ‘ ‘+ @strOrder
--如果是第一页就执行以上代码,这样会加快执行速度
end
else
begin
--以下代码赋予了@strSQL以真正执行的SQL代码
set @strSQL = ‘select top ‘ + str(@PageSize) +‘ ‘[email protected]+ ‘ from ‘
+ @tblName + ‘ where ‘ + @fldName + ‘ ‘ + @strTmp + ‘(‘+ @joinfldName + ‘) from (select top ‘ + str((@PageIndex-1)*@PageSize) + ‘ ‘+ @fldName + ‘ from ‘ + @tblName + ‘ ‘ + @strOrder + ‘) as tblTmp)‘+ @strOrder
if @strWhere != ‘‘
set @strSQL = ‘select top ‘ + str(@PageSize) +‘ ‘[email protected]+ ‘ from ‘
+ @tblName + ‘ where ‘ + @fldName + ‘ ‘ + @strTmp + ‘(‘
+ @joinfldName + ‘) from (select top ‘ + str((@PageIndex-1)*@PageSize) + ‘ ‘
+ @fldName + ‘ from ‘ + @tblName + ‘ where ‘ + @strWhere + ‘ ‘
+ @strOrder + ‘) as tblTmp) and ‘ + @strWhere + ‘ ‘ + @strOrder
end
end
print @strSQL
exec (@strSQL)
GO