高效分頁存儲過程

CREATE PROCEDURE GetRecordFromPage

@tblName varchar(255), -- 表名

@fldName varchar(255), -- 字段名

@OrderfldName varchar(255), -- 排序字段名

@StatfldName varchar(255), -- 統計字段名

@PageSize int = 10, -- 頁尺寸

@PageIndex int = 1, -- 頁碼

@OrderType bit = 0, -- 設置排序類型, 非 0 值則降序

@strWhere varchar(1000) = '' -- 查詢條件 (注意: 不要加 where)

AS

declare @strSQL varchar(6000) -- 主語句

declare @strTmp varchar(100) -- 臨時變量

declare @strOrder varchar(400) -- 排序類型

if @OrderType != 0

begin

set @strTmp = "<(select min"

set @strOrder = " order by [" + @OrderfldName +"] desc"

end

else

begin

set @strTmp = ">(select max"

set @strOrder = " order by [" + @OrderfldName +"] asc"

end

set @strSQL = "select top " + str(@PageSize) + " " + @fldName + " from ["

+ @tblName + "] where [" + @OrderfldName + "]" + @strTmp + "(["

+ @OrderfldName + "]) from (select top " + str((@PageIndex-1)*@PageSize) + " ["

+ @OrderfldName + "] from [" + @tblName + "]" + @strOrder + ") as tblTmp)"

+ @strOrder

if @strWhere != ''

set @strSQL = "select top " + str(@PageSize) + " " + @fldName + " from ["

+ @tblName + "] where [" + @OrderfldName + "]" + @strTmp + "(["

+ @OrderfldName + "]) from (select top " + str((@PageIndex-1)*@PageSize) + " ["

+ @OrderfldName + "] from [" + @tblName + "] where " + @strWhere + " "

+ @strOrder + ") as tblTmp) and " + @strWhere + " " + @strOrder

if @PageIndex = 1

begin

set @strTmp = ""

if @strWhere != ''

set @strTmp = " where " + @strWhere

set @strSQL = "select top " + str(@PageSize) + " " + @fldName + " from ["

+ @tblName + "]" + @strTmp + " " + @strOrder

end

exec (@strSQL)
GO