declare
@page int,--每页显示记录数
@num int,--查询页数
--@nowpage int,--当前页 @strsql varchar (200)
set @page=10
set @num=5
set @strsql='select * from (select ROW_NUMBER() OVER (order by spdm) as id,* from shangpin ) as temp '
if @num != 0
set @strsql=@strsql+' where id between '''@num''' and 20'
print @strsql
请问这个INT值怎么得到呢 ?
@page int,--每页显示记录数
@num int,--查询页数
--@nowpage int,--当前页 @strsql varchar (200)
set @page=10
set @num=5
set @strsql='select * from (select ROW_NUMBER() OVER (order by spdm) as id,* from shangpin ) as temp '
if @num != 0
set @strsql=@strsql+' where id between '''@num''' and 20'
print @strsql
请问这个INT值怎么得到呢 ?
@page int,--每页显示记录数
@num int,--查询页数
--@nowpage int,--当前页 @strsql varchar (200)
set @page=10
set @num=5
set @strsql='select * from (select ROW_NUMBER() OVER (order by spdm) as id,* from shangpin ) as temp '
if @num != 0
set @strsql=@strsql+' where id between '+str(@num)+ 'and 20'
print @strsql
--高效分页存储过程,仅适用于Sql2005
--===========================================================
set ANSI_NULLS ON
set QUOTED_IDENTIFIER ON
go
-- =============================================
-- Description: <高效分页存储过程,仅适用于Sql2005>
-- Notes: <排序字段强烈建议建索引>
-- Page2005 'dyj_vclient','client_id,last_dt','client_id','last_dt','desc','',20,1,0
-- =============================================
ALTER Procedure [dbo].[Page2005]
@TableName varchar(50), --表名
@Fields varchar(5000) = '*', --字段名(全部字段为*)
@PrimaryKey varchar(20), --主键
@OrderField varchar(5000), --排序字段(必须!支持多字段)
@Orderby varchar(8)='desc', --排序方式(desc:倒序,asc:顺序)
@sqlWhere varchar(5000) = Null, --条件语句(不用加where)
@pageSize int, --每页多少条记录
@pageIndex int = 1 , --指定当前为第几页
@TotalPage int output --返回总页数
as
begin
Begin Tran --开始事务
Declare @sql nvarchar(4000);
Declare @totalRecord int;
if isnull(@PrimaryKey,'')=''
set @PrimaryKey='*'
--计算总记录数
if (@SqlWhere='' or @sqlWhere=NULL)
set @sql = 'select @totalRecord = count('+ @PrimaryKey +') from ' + @TableName
else
set @sql = 'select @totalRecord = count('+ @PrimaryKey +') from ' + @TableName + ' where ' + @sqlWhere
EXEC sp_executesql @sql,N'@totalRecord int OUTPUT',@totalRecord OUTPUT--计算总记录数
--计算总页数
select @TotalPage=CEILING((@totalRecord+0.0)/@PageSize)
if (@SqlWhere='' or @sqlWhere=NULL)
set @sql = 'Select * FROM (select ROW_NUMBER() Over(order by ' + @OrderField + ' '+ @Orderby +') as rowId,' + @Fields + ' from ' + @TableName
else
set @sql = 'Select * FROM (select ROW_NUMBER() Over(order by ' + @OrderField + ' '+ @Orderby +') as rowId,' + @Fields + ' from ' + @TableName + ' where ' + @SqlWhere
--处理页数超出范围情况
if @PageIndex <=0
Set @pageIndex = 1
if @pageIndex>@TotalPage
Set @pageIndex = @TotalPage
--处理开始点和结束点
Declare @StartRecord int
Declare @EndRecord int
set @StartRecord = (@pageIndex-1)*@PageSize + 1
set @EndRecord = @StartRecord + @pageSize - 1
--继续合成sql语句
set @Sql = @Sql + ') as ' + @TableName + ' where rowId between ' + Convert(varchar(50),@StartRecord) + ' and ' + Convert(varchar(50),@EndRecord)
Exec(@Sql)
---------------------------------------------------
If @@Error <> 0
Begin
RollBack Tran
Return -1
End
Else
Begin
Commit Tran
Return @totalRecord ---返回记录总数
End
end
--=======================================================
--邹建
--=======================================================
-----------------------------------------------------------------------------------------------------
--TOP n 实现的通用分页存储过程(转自邹建)
CREATE PROC sp_PageView
@tbname sysname, --要分页显示的表名
@FieldKey nvarchar(1000), --用于定位记录的主键(惟一键)字段,可以是逗号分隔的多个字段
@PageCurrent int=1, --要显示的页码
@PageSize int=10, --每页的大小(记录数)
@FieldShow nvarchar(1000)='', --以逗号分隔的要显示的字段列表,如果不指定,则显示所有字段
@FieldOrder nvarchar(1000)='', --以逗号分隔的排序字段列表,可以指定在字段后面指定DESC/ASC
用于指定排序顺序
@Where nvarchar(1000)='', --查询条件
@PageCount int OUTPUT --总页数
AS
SET NOCOUNT ON
--检查对象是否有效
IF OBJECT_ID(@tbname) IS NULL
BEGIN
RAISERROR(N'对象"%s"不存在',1,16,@tbname)
RETURN
END
IF OBJECTPROPERTY(OBJECT_ID(@tbname),N'IsTable')=0
AND OBJECTPROPERTY(OBJECT_ID(@tbname),N'IsView')=0
AND OBJECTPROPERTY(OBJECT_ID(@tbname),N'IsTableFunction')=0
BEGIN
RAISERROR(N'"%s"不是表、视图或者表值函数',1,16,@tbname)
RETURN
END--分页字段检查
IF ISNULL(@FieldKey,N'')=''
BEGIN
RAISERROR(N'分页处理需要主键(或者惟一键)',1,16)
RETURN
END--其他参数检查及规范
IF ISNULL(@PageCurrent,0)<1 SET @PageCurrent=1
IF ISNULL(@PageSize,0)<1 SET @PageSize=10
IF ISNULL(@FieldShow,N'')=N'' SET @FieldShow=N'*'
IF ISNULL(@FieldOrder,N'')=N''
SET @FieldOrder=N''
ELSE
SET @FieldOrder=N'ORDER BY '+LTRIM(@FieldOrder)
IF ISNULL(@Where,N'')=N''
SET @Where=N''
ELSE
SET @Where=N'WHERE ('+@Where+N')'--如果@PageCount为NULL值,则计算总页数(这样设计可以只在第一次计算总页数,以后调用时,把总页数传回给存储过程,避免再次计算总页数,对于不想计算总页数的处理而言,可以给@PageCount赋值)
IF @PageCount IS NULL
BEGIN
DECLARE @sql nvarchar(4000)
SET @sql=N'SELECT @PageCount=COUNT(*)'
+N' FROM '+@tbname
+N' '+@Where
EXEC sp_executesql @sql,N'@PageCount int OUTPUT',@PageCount OUTPUT
SET @PageCount=(@PageCount+@PageSize-1)/@PageSize
END--计算分页显示的TOPN值
DECLARE @TopN varchar(20),@TopN1 varchar(20)
SELECT @TopN=@PageSize,
@TopN1=(@PageCurrent-1)*@PageSize--第一页直接显示
IF @PageCurrent=1
EXEC(N'SELECT TOP '+@TopN
+N' '+@FieldShow
+N' FROM '+@tbname
+N' '+@Where
+N' '+@FieldOrder)
ELSE
BEGIN
--处理别名
IF @FieldShow=N'*'
SET @FieldShow=N'a.*' --生成主键(惟一键)处理条件
DECLARE @Where1 nvarchar(4000),@Where2 nvarchar(4000),
@s nvarchar(1000),@Field sysname
SELECT @Where1=N'',@Where2=N'',@s=@FieldKey
WHILE CHARINDEX(N',',@s)>0
SELECT @Field=LEFT(@s,CHARINDEX(N',',@s)-1),
@s=STUFF(@s,1,CHARINDEX(N',',@s),N''),
@Where1=@Where1+N' AND a.'+@Field+N'=b.'+@Field,
@Where2=@Where2+N' AND b.'+@Field+N' IS NULL',
@Where=REPLACE(@Where,@Field,N'a.'+@Field),
@FieldOrder=REPLACE(@FieldOrder,@Field,N'a.'+@Field),
@FieldShow=REPLACE(@FieldShow,@Field,N'a.'+@Field)
SELECT @Where=REPLACE(@Where,@s,N'a.'+@s),
@FieldOrder=REPLACE(@FieldOrder,@s,N'a.'+@s),
@FieldShow=REPLACE(@FieldShow,@s,N'a.'+@s),
@Where1=STUFF(@Where1+N' AND a.'+@s+N'=b.'+@s,1,5,N''),
@Where2=CASE
WHEN @Where='' THEN N'WHERE ('
ELSE @Where+N' AND ('
END+N'b.'+@s+N' IS NULL'+@Where2+N')' --执行查询
EXEC(N'SELECT TOP '+@TopN
+N' '+@FieldShow
+N' FROM '+@tbname
+N' a LEFT JOIN(SELECT TOP '+@TopN1
+N' '+@FieldKey
+N' FROM '+@tbname
+N' a '+@Where
+N' '+@FieldOrder
+N')b ON '+@Where1
+N' '+@Where2
+N' '+@FieldOrder)
END
go
create proc pagetest1
@pagesize int,--分页大小
@numpage int,--查询页数
@nowpage varchar (10)--下一页或者上一页 为空表示当前页as
declare
@strsql varchar (200)
--set @pagesize=10
--set @numpage=5
set @strsql='select * from (select ROW_NUMBER() OVER (order by spdm) as id,* from shangpin ) as temp '
if @numpage != 0 and @nowpage=''
begin
set @strsql=@strsql+' where id between '+str((@numpage-1)*@pagesize+1)+' and '+str((@numpage)*@pagesize)
end else if --@numpage != 0 and
@nowpage='上一页'
begin
set @strsql=@strsql+' where id between '+str((@numpage-1-1)*@pagesize+1)+' and '+str((@numpage-1)*@pagesize)
end else
begin
set @strsql=@strsql+' where id between '+str((@numpage-1+1)*@pagesize+1)+' and '+str((@numpage+1)*@pagesize)
end
--end
print @strsql
--print @unmpage
exec (@strsql)
go