实现千万级数据的分页显示

CREATE PROCEDURE GetRecordFromPage

@tblName varchar(255), -- 表名

@fldName varchar(255), -- 字段名

@PageSize int = 10, -- 页尺寸

@PageIndex int = 1, -- 页码

@IsCount 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(1000) = '' -- 查询条件 (注意: 不要加 where)

AS

declare @strSQL varchar(6000) -- 主语句

declare @strTmp varchar(100) -- 临时变量

declare @strOrder varchar(400) -- 排序类型

if @OrderType != 0

begin

set @strTmp = "<(select min"

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

end

else

begin

set @strTmp = ">(select max"

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

end

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

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

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

+ @fldName + "] 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) + " * from ["

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

end

if @IsCount != 0

set @strSQL = "select count(*) as Total from [" + @tblName + "]"

exec (@strSQL)

GO