sql 分页存储过程

USE [FcityDB２]
GO

/****** Object:  StoredProcedure [dbo].[Proc_GetDataPaged]    Script Date: 2015/7/24 10:15:05 ******/
SET ANSI_NULLS ON
GO

SET QUOTED_IDENTIFIER ON
GO




CREATE PROCEDURE [dbo].[Proc_GetDataPaged]
  @StrSelect  VARCHAR(max)=NULL,--欲显示的列（多列用逗号分开），例如：id,name
  @StrFrom    VARCHAR(max)= NULL,--表名称，或者是表连接字符串，多表连接例如:student as s inner join dwinfo as dw on s.dwbh=dw.bh
  @StrWhere   VARCHAR(max)=NULL,--查询条件,''代表没有条件，单条件或者多条件，多条件例如：name='啊' and id=10
  @StrOrder   VARCHAR(max) =NULL,--排序列(多个排序列用逗号分开），例如:id desc,name as 
  @ItemCount  BIGINT output,--总记录数
  @PageSize   INT =50,--每页显示条数
  @BeginIndex INT=1,--记录开始数
  @SqlQuery VARCHAR(max) output
AS
  BEGIN
      SET NOCOUNT ON;
      DECLARE @sql NVARCHAR(4000);
      DECLARE @totalRecord INT;
      --计算总记录数 
      IF ( @StrWhere = ''''
            OR @StrWhere = ''
            OR @StrWhere IS NULL )
        SET @sql = 'select @totalRecord = count(*) from '
                   + @StrFrom
      ELSE
        SET @sql = 'select @totalRecord = count(*) from '
                   + @StrFrom + ' where ' + @StrWhere

      EXEC Sp_executesql
        @sql,
        N'@totalRecord int OUTPUT',
        @ItemCount OUTPUT--计算总记录数 
    --  DECLARE @SqlQuery VARCHAR(max)

      IF( @BeginIndex = 1
           OR @BeginIndex = 0
           OR @BeginIndex < 0 )
        BEGIN
            IF( @StrWhere IS NULL )--if(@StrWhere='')
              SET @SqlQuery='select top ' + CONVERT(VARCHAR, @PageSize)
                            + ' row_number() over(order by ' + @StrOrder
                            + ' ) as RowNumber,' + @StrSelect + ' from '
                            + @StrFrom;
            ELSE
              SET @SqlQuery='select top ' + CONVERT(VARCHAR, @PageSize)
                            + ' row_number() over(order by ' + @StrOrder
                            + ' ) as RowNumber,' + @StrSelect + ' from '
                            + @StrFrom + ' where ' + @StrWhere;
        --exec (@SqlQuery)
        --      @SqlQuery
        END
      ELSE
        BEGIN
            IF( @StrWhere IS NULL )--if(@StrWhere='')
              BEGIN
                  SET @SqlQuery='with cte as (

select row_number() over(order by '
                                + @StrOrder + ' ) as RowNumber,' + @StrSelect
                                + ' from ' + @StrFrom
                                + '

)
select * from cte where RowNumber between '
                                +    
                                CONVERT(VARCHAR, (@BeginIndex-1)*@PageSize+1)
                                + ' and '
                                + CONVERT(VARCHAR, @BeginIndex*@PageSize)
              --print @SqlQuery
              END
            ELSE
              BEGIN
                  SET @SqlQuery='with cte as (

select row_number() over(order by '
                                + @StrOrder + ' ) as RowNumber,' + @StrSelect
                                + ' from ' + @StrFrom + ' where ' + @StrWhere
                                + '

)

select * from cte where RowNumber between '
                                +
                          
                                CONVERT(VARCHAR, (@BeginIndex-1)*@PageSize+1)
                                + ' and '
                                + CONVERT(VARCHAR, @BeginIndex*@PageSize)
              --print @SqlQuery
              END
        END

    
     --   print @SqlQuery
   --   EXEC (@SqlQuery)
 --  select (@SqlQuery)
  END




GO