7

ページネーション ストアド プロシージャの並べ替え機能を追加しようとしています。

これを行うにはどうすればよいですか、これまでのところ、これを作成しました。正常に機能しますが、パラメーターを渡すと機能@sortしませんでした。

ALTER PROCEDURE [dbo].[sp_Mk]
 @page INT,
 @size INT,
 @sort nvarchar(50) ,
 @totalrow INT  OUTPUT
AS
BEGIN
    DECLARE @offset INT
    DECLARE @newsize INT

    IF(@page=0)
    begin
       SET @offset = @page;
       SET @newsize = @size
    end
    ELSE 
    begin
        SET @offset = @page+1;
        SET @newsize = @size-1
    end
    -- SET NOCOUNT ON added to prevent extra result sets from
    SET NOCOUNT ON;
    WITH OrderedSet AS
    (
      SELECT *,
          ROW_NUMBER() OVER (ORDER BY @sort DESC) AS 'Index'
      FROM [dbo].[Mk]  
    )
   SELECT * 
   FROM OrderedSet 
   WHERE [Index] BETWEEN @offset AND (@offset + @newsize) 

   SET @totalrow = (SELECT COUNT(*) FROM [dbo].[Mk])
END
4

9 に答える 9

7

それを行う1つの方法（おそらく最善ではない）は、動的SQLを使用することです

CREATE PROCEDURE [sp_Mk]
 @page INT,
 @size INT,
 @sort nvarchar(50) ,
 @totalrow INT  OUTPUT
AS
BEGIN
    DECLARE @offset INT
    DECLARE @newsize INT
    DECLARE @sql NVARCHAR(MAX)

    IF(@page=0)
      BEGIN
        SET @offset = @page
        SET @newsize = @size
       END
    ELSE 
      BEGIN
        SET @offset = @page*@size
        SET @newsize = @size-1
      END
    SET NOCOUNT ON
    SET @sql = '
     WITH OrderedSet AS
    (
      SELECT *, ROW_NUMBER() OVER (ORDER BY ' + @sort + ') AS ''Index''
      FROM [dbo].[Mk] 
    )
   SELECT * FROM OrderedSet WHERE [Index] BETWEEN ' + CONVERT(NVARCHAR(12), @offset) + ' AND ' + CONVERT(NVARCHAR(12), (@offset + @newsize)) 
   EXECUTE (@sql)
   SET @totalrow = (SELECT COUNT(*) FROM [Mk])
END

これがSQLFiddleのデモです

于 2013-07-23T07:04:49.727 に答える
2

これを修正するには、動的 SQL を使用してみてください。

ALTER PROCEDURE [dbo].[sp_Mk]
  @page INT,
  @size INT,
  @sort nvarchar(50) ,
  @totalrow INT  OUTPUT
AS
BEGIN
    DECLARE @SQL nvarchar(4000)
    DECLARE @Params varchar(200)

SET @Params = N'@page int, @size int, @sort nvarchar(50), @totalrow int OUTPUT'

SET @SQL = '
DECLARE @offset INT
DECLARE @newsize INT

IF(@page=0)
begin
   SET @offset = @page;
   SET @newsize = @size
end
ELSE 
begin
    SET @offset = @page+1;
    SET @newsize = @size-1
end
-- SET NOCOUNT ON added to prevent extra result sets from
SET NOCOUNT ON;
WITH OrderedSet AS
(
  SELECT *,
      ROW_NUMBER() OVER (ORDER BY @sort  DESC) AS ''Index''
  FROM [dbo].[Mk]  
)
   SELECT * 
   FROM OrderedSet 
   WHERE [Index] BETWEEN @offset AND (@offset + @newsize) 

   SET @totalrow = (SELECT COUNT(*) FROM [dbo].[Mk])'


   EXEC sp_executesql @SQL, @Params, @page = @page, @size = @size, @sort = @sort, @totalrow = @totalrow 

END
于 2013-07-23T09:29:28.230 に答える
1

これを使用してみてください：

CREATE PROCEDURE dbo.proc_Paging_CTE_Dynamic
(
@Page int,
@RecsPerPage int,
@queryTxt varchar(MAX),
@orderBy varchar(MAX)
)
AS
-- The number of rows affected by the different commands
-- does not interest the application, so turn NOCOUNT ON
SET NOCOUNT ON


DECLARE @sql NVARCHAR(MAX)

SET @sql = '
DECLARE @Page int, @RecsPerPage int
SET @Page = ' + CAST(@Page as varchar) + '
SET @RecsPerPage = ' + CAST(@RecsPerPage as varchar) + '
-- Determine the first record and last record 
DECLARE @FirstRec int, @LastRec int
SELECT @FirstRec = (@Page - 1) * @RecsPerPage
SELECT @LastRec = (@Page * @RecsPerPage + 1);

WITH TempResult as
(
SELECT ROW_NUMBER() OVER(ORDER BY ' + @orderBy + ') as RowNum,
  '
  +
  @queryTxt
  +
  '
)
SELECT top (@LastRec-1) *
FROM TempResult
WHERE RowNum > @FirstRec 
AND RowNum < @LastRec
'

EXECUTE (@sql)
-- Turn NOCOUNT back OFF
SET NOCOUNT OFF
GO

こちらです：

exec dbo.proc_Paging_CTE_Dynamic 126, 
    15, 
    'SUBSCRIBER.Number, SERVICE_MEMBER.AllowedDays, SERVICE_MEMBER.AllowedUntilTime, SERVICE_MEMBER.AllowedFromTime, SERVICE_MEMBER.Capacity, 
                      SERVICE.Name
        FROM SUBSCRIBER INNER JOIN
                      SERVICE_MEMBER ON SUBSCRIBER.Number = SERVICE_MEMBER.Subscriber_Number INNER JOIN
                      SERVICE ON SERVICE_MEMBER.Service_Id = SERVICE.Id', 
    'Number, Service_Id'
于 2015-07-15T19:29:11.713 に答える
0

このリンクを見つけましたが、かなりうまく機能します。文字列/動的SQLを使用しません。代わりに CASE ステートメントを使用します

SELECT ROW_NUMBER() OVER (ORDER BY
        CASE WHEN (@lSortCol = ‘ContactID’ AND @SortOrder=‘ASC’)
                    THEN ContactID
        END ASC,

http://www.codeproject.com/Articles/590341/Stored-Procedure-with-Sorting-Paging-and-Filtering

于 2016-03-05T10:17:02.390 に答える