簡化版的sqlserver分頁

標籤：

Create PROCEDURE [dbo].[pagination] 

@tblName varchar(8000), -- 表名
@strGetFields varchar(1000) = ‘*‘, -- 需要返回的列
@fldName varchar(255)=‘‘, -- 排序的欄位名
@PageSize int , -- 頁尺寸
@PageIndex int, -- 頁碼
@doCount bit , -- 返回記錄總數, 非 0 值則返回
@OrderType bit , -- 設定排序類型, 非 0 值則降序
@strWhere varchar(1500) = ‘‘ -- 查詢條件 (注意: 不要加 where)
AS
declare @strSQL varchar(8000) -- 主語句
declare @strTmp varchar(110) -- 臨時變數
declare @strOrder varchar(400) -- 排序類型

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
--以上代碼的意思是如果@doCount傳遞過來的不是0，就執行總數統計。以下的所有代碼都是@doCount為0的情況
else
begin

if @OrderType != 0
begin
set @strTmp = ‘<(select min‘
set @strOrder = ‘ order by ‘ + @fldName +‘ desc‘
--如果@OrderType不是0，就執行降序，這句很重要！
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
--如果是第一頁就執行以上代碼，這樣會加快執行速度
end
else
begin
--以下代碼賦予了@strSQL以真正執行的SQL代碼
set @strSQL = ‘select top ‘ + str(@PageSize) +‘ ‘[email protected]+ ‘ from ‘
+ @tblName + ‘ where ‘ + @fldName + ‘‘ + @strTmp + ‘(‘+ @fldName + ‘) 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 + ‘(‘
+ @fldName + ‘) from (select top ‘ + str((@PageIndex-1)*@PageSize) + ‘ ‘
+ @fldName + ‘ from ‘ + @tblName + ‘ where ‘ + @strWhere + ‘ ‘
+ @strOrder + ‘) as tblTmp) and ‘ + @strWhere + ‘ ‘ + @strOrder
end
end
exec (@strSQL)

簡化版的sqlserver分頁