通用分页存储过程

转自：http://51cndo.blog.51cto.com/491222/102320

昨天写存储过程时遇到一个麻烦，再搜寻答案时搜到了“通用存储过程”，但只看到部分残缺代码，多方参考后，鄙人对其进行总结规范，得出以下规范存储过程，竟然把本人项目里50多个查询存储过程代替！不敢独享，遂贴出与大家分享，希望对大家有所帮助！！

该存储过程几乎可以涵盖所有查询存储过程（目前本人还没有发现不能使用的）

参数：分页大小，第几页，需要得到的字段 ，需要查询的表 ， 查询条件，排序的字段名，排序的类型，主键名称

输入参数即可查询，无论是查询一条记录还是查询多条记录，无论是分页还是不分页，无论是需要查询条件还是不需要查询条件……，都可使用此通用的存储过程！！！

通用性相当好！！

/*通用分页存储过程*/
USE HotelManagementSystem
GO
IF EXISTS (SELECT * FROM sys.objects WHERE NAME ='cndoup_GetPageOfRecords' )
  DROP PROCEDURE cndoup_GetPageOfRecords
GO
--创建存储过程
CREATE PROCEDURE cndoup_GetPageOfRecords
  @pageSize int = 20,                                                --分页大小
  @currentPage int ,                                                 --第几页
  @columns varchar (1000) = '*' ,                            --需要得到的字段
  @tableName varchar (100),                                     --需要查询的表    
  @condition varchar (1000) = '' ,                         --查询条件, 不用加where关键字
  @ascColumn varchar (100) = '' ,                            --排序的字段名 (即 order by column asc/desc)
  @bitOrderType bit = 0,                                         --排序的类型 (0为升序,1为降序)
  @pkColumn varchar (50) = ''                                  --主键名称

AS
BEGIN                                                                                     --存储过程开始
  DECLARE @strTemp varchar (300)
  DECLARE @strSql varchar (5000)                            --该存储过程最后执行的语句
  DECLARE @strOrderType varchar (1000)                --排序类型语句 (order by column asc或者order by column desc)

  BEGIN
    IF @bitOrderType = 1                --降序
      BEGIN
        SET @strOrderType = ' ORDER BY ' +@ascColumn+' DESC'
        SET @strTemp = '<(SELECT min'
      END
    ELSE                   --升序
      BEGIN
        SET @strOrderType = ' ORDER BY ' +@ascColumn+' ASC'
        SET @strTemp = '>(SELECT max'
      END

    IF @currentPage = 1            --第一页
      BEGIN
        IF @condition != ''
          SET @strSql = 'SELECT TOP ' +STR (@pageSize)+' ' +@columns+' FROM ' +@tableName+
            ' WHERE ' +@condition+@strOrderType
        ELSE
          SET @strSql = 'SELECT TOP ' +STR (@pageSize)+' ' +@columns+' FROM ' +@tableName+@strOrderType
      END

    ELSE                   -- 其他页
      BEGIN
        IF @condition !=''
          SET @strSql = 'SELECT TOP ' +STR (@pageSize)+' ' +@columns+' FROM ' +@tableName+
          ' WHERE ' +@condition+' AND ' +@pkColumn+@strTemp+'(' +@pkColumn+')' +' FROM (SELECT TOP ' +STR ((@currentPage-1)*@pageSize)+
          ' ' +@pkColumn+' FROM ' +@tableName'where' +@condition+@strOrderType+') AS TabTemp)' +@strOrderType
        ELSE
          SET @strSql = 'SELECT TOP ' +STR (@pageSize)+' ' +@columns+' FROM ' +@tableName+
          ' WHERE ' +@pkColumn+@strTemp+'(' +@pkColumn+')' +' FROM (SELECT TOP ' +STR ((@currentPage-1)*@pageSize)+' ' +@pkColumn+
          ' FROM ' +@tableName+@strOrderType+') AS TabTemp)' +@strOrderType
      END

  END
  EXEC (@strSql)
END   

                        --存储过程结束


--分页得到客房信息列表测试
EXEC cndoup_GetPageOfRecords 20,2,'房间号=RoomNum,
            房间状态=(SELECT RoomTypeDes FROM RoomType WHERE RoomTypeID=Room.RoomTypeID),
            房间状态=(SELECT RSDec FROM RoomStatus WHERE RoomStatusID=Room.RoomStatusID),
            床位数=BedNum,
            楼层=Floors,
            描述=RoomDes,
            备注=RoomRemark',' Room',' ',' RoomID',0,' RoomID'


--根据房间号得到客房信息测试
EXEC cndoup_GetPageOfRecords 1,1,'房间号=RoomNum,
            房间状态=(SELECT RoomTypeDes FROM RoomType WHERE RoomTypeID=Room.RoomTypeID),
            房间状态=(SELECT RSDec FROM RoomStatus WHERE RoomStatusID=Room.RoomStatusID),
            BedNum,
            Floors,
            RoomDes,
            RoomRemark',' Room',' RoomNum=304',' RoomID',0,' RoomID'


--·  得到客房类型信息列表测试
EXEC cndoup_GetPageOfRecords 10,1,'RoomTypeDes,Price,Area,AddBed,MaxBedNum,BedPrice,HourRoom,HourPrice,Remark' ,'RoomType' ,'' ,'RoomTypeID' ,0,'RoomTypeID'