--分頁查詢數(shù)據(jù)
--調(diào)用 sp_ShowPageQ 'TFetchData','id',0,'*',200,2,'fetchdt > ''2008-10-22'''
CREATE PROCEDURE sp_ShowPageQ
@strTable varchar(50), --表名
@strColumn varchar(50), --按該列來進(jìn)行分頁
--@intColType int, --@strColumn列的類型,0-數(shù)字類型,1-字符類型,2-日期時間類型
@intOrder int, --排序,0-順序,1-倒序
@strColumnlist varchar(800), --要查詢出的字段列表,*表示全部字段
@intPageSize int, --每頁記錄數(shù)
@intPageNum int, --指定頁
@strWhere varchar(800) --查詢條件
--@intRecordCount int, --總記錄數(shù)
--@intPageCount int --總頁數(shù)
AS
DECLARE @sql nvarchar(4000) --用于構(gòu)造SQL語句
DECLARE @where1 varchar(800) --構(gòu)造條件語句
DECLARE @where2 varchar(800) --構(gòu)造條件語句
DECLARE @intRecordCount int --總記錄數(shù)
DECLARE @intPageCount int --總頁數(shù)
IF @strWhere is null or rtrim(@strWhere)=''
-- 為了避免SQL關(guān)鍵字與字段、表名等連在一起，首先為傳入的變量添加空格
BEGIN --沒有查詢條件
SET @where1=' WHERE '
SET @where2=' '
END
ELSE
BEGIN --有查詢條件
SET @where1=' WHERE ('+@strWhere+') AND '
SET @where2=' WHERE ('+@strWhere+') '
END
set @strColumn = ' ' + @strColumn + ' '
set @strColumnlist = ' ' + @strColumnlist + ' '
--構(gòu)造SQL語句，計算總頁數(shù)。計算公式為 總頁數(shù) = Ceiling ( 記錄個數(shù) / 頁大小 )
SET @sql='SELECT @intPageCount=CEILING((COUNT(*)+0.0)/'
+ CAST(@intPageSize AS varchar)
+ ') FROM ' + @strTable + @where2
--執(zhí)行SQL語句，計算總頁數(shù)，并將其放入@intPageCount變量中
EXEC sp_executesql @sql,N'@intPageCount int OUTPUT',@intPageCount OUTPUT
--計算記錄數(shù) @intRecordCount
SET @sql='SELECT @intRecordCount=COUNT(*) FROM ' + @strTable + @where2
--執(zhí)行SQL語句，計算記錄數(shù)，并將其放入@intRecordCount 變量中
EXEC sp_executesql @sql,N'@intRecordCount int OUTPUT',@intRecordCount OUTPUT
--將總頁數(shù)放到查詢返回記錄集的第一個字段前，此語句可省略
SET @strColumnlist= ' '+Cast(@intPageCount as varchar(30)) + ' as PageCount,'+
Cast(@intRecordCount as varchar(30)) + ' as RecordCount,' + @strColumnlist
IF @intOrder=0 --構(gòu)造升序的SQL
SET @sql='SELECT TOP '+ CAST(@intPageSize AS varchar) +
@strColumnlist +
' FROM ' + @strTable + @where1 +
@strColumn + '>(SELECT MAX('+@strColumn+') '+
' FROM (SELECT TOP '+ CAST(@intPageSize*(@intPageNum - 1) AS varchar) +
@strColumn + ' FROM '+ @strTable+@where2+'ORDER BY '+@strColumn+') t) ORDER BY '+ @strColumn
ELSE --構(gòu)造降序的SQL
SET @sql='SELECT TOP '+ CAST(@intPageSize AS varchar) +
@strColumnlist+
' FROM '+ @strTable + @where1 +
@strColumn + '<(SELECT MIN('+@strColumn+') '+
' FROM (SELECT TOP '+ CAST(@intPageSize*(@intPageNum - 1) AS varchar) +
@strColumn + ' FROM '+ @strTable+@where2+'ORDER BY '+@strColumn+' DESC) t) ORDER BY '+
@strColumn + ' DESC'
IF @intPageNum=1--第一頁
SET @sql='SELECT TOP '+CAST(@intPageSize AS varchar) + @strColumnlist + ' FROM '+@strTable+
@where2+'ORDER BY '+@strColumn+CASE @intOrder WHEN 0 THEN '' ELSE ' DESC'
END
--PRINT @sql
EXEC(@sql)
GO
CREATE procedure PaginationQuery
@p_selectSQL nvarchar(4000), --要執(zhí)行的sql語句
@p_curPage int=1 out, --要顯示的頁碼
@p_pageSize int=20, --每頁的大小
@p_totalRecords int=0 out, --記錄數(shù)
@p_totalPages int=0 out --總頁數(shù)
as
set nocount on
declare
@p1 int,
@tmpCur int
exec sp_cursoropen @p1 output,@p_selectSQL,@scrollopt=1,@ccopt=1,@rowcount=@p_totalPages output
if @p_curPage<1
set @p_curPage=1
if @p_curPage*@p_pageSize>@p_totalPages
set @p_curPage=ceiling(1.0*@p_totalPages/@p_pageSize)
select @tmpCur=@p_curPage
select @p_totalRecords=@p_totalPages+1,@p_totalPages=ceiling(1.0*@p_totalPages/@p_pageSize),@p_curPage=(@p_curPage-1)*@p_pageSize+1
exec sp_cursorfetch @p1,16,@p_curPage,@p_pageSize
select @p_curPage=@tmpCur
exec sp_cursorclose @p1
set nocount off
GO
