SQL语句的分页存储过程

create PROCEDURE [dbo].[GetRecordFromPage]

    @tblName      varchar(255),       -- 表名

    @fldName      varchar(255),       -- 字段名

    @PageSize     int = 10,           -- 页尺寸

    @PageIndex    int = 1,            -- 页码

    @OrderType    bit = 0,            -- 设置排序类型, 非0 值则降序

    @IsCount bit = 0, -- 返回记录总数, 非0 值则返回

    @strWhere     varchar(2000) = ''  -- 查询条件(注意: 不要加where)

   

AS

 

declare @strSQL   varchar(6000)       -- 主语句

declare @strTmp   varchar(1000)       -- 临时变量

declare @strOrder varchar(500)        -- 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(' + @fldName + ') as Total from [' + @tblName + ']'

exec (@strSQL)

 

GO