通用分页存储过程

alter proc proc_GetRecordFromPage
    @tblName      varchar(255),       -- 表名
    @fldName      varchar(255),       -- 字段名
    @PageSize     int = 1,           -- 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 = 1,            -- 设置排序类型, 非0 值则降序
    @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)

--调用存储过程，            表名      字段名        显示条数，第几页
exec proc_GetRecordFromPage 'customer','sale_customerid',1,1

select * from Customer