これは私のクエリです:
SELECT *
FROM
(SELECT
ROW_NUMBER() OVER (ORDER BY NAME asc) peta_rn,
peta_query.*
FROM
(SELECT
BOOK, PAGETRIMMED, NAME, TYPE, PDF
FROM
CCWiseDocumentNames2 cdn
INNER JOIN
CCWiseInstr2 cwi ON cwi.ID = cdn.ID) as peta_query) peta_paged
WHERE
peta_rn > 1331900 AND peta_rn <= 1331950
現在、このクエリは結果を取得するのに約 4 秒かかります。1秒未満にする方法はありますか?
と にインデックスが既に作成されcwi.ID
ていcdn.ID
ます。以下は、SQL サーバーからの実際の実行計画です。
どんな助けでも役に立ちます。
これはテーブル構造です:
/****** Object: Table [dbo].[CCWiseInstr2] Script Date: 9/17/2013 3:54:27 AM ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
CREATE TABLE [dbo].[CCWiseInstr2](
[ID] [int] NULL,
[BK_PG] [varchar](50) NULL,
[DATE] [datetime] NULL,
[ITYPE] [varchar](50) NULL,
[BOOK] [int] NULL,
[PAGE] [varchar](50) NULL,
[NOBP] [varchar](50) NULL,
[DESC] [varchar](240) NULL,
[TIF] [varchar](50) NULL,
[INDEXNAME] [varchar](50) NULL,
[CONFIRM] [varchar](50) NULL,
[PDF] [varchar](50) NULL,
[PAGETRIMMED] [varchar](10) NULL
) ON [PRIMARY]
GO
SET ANSI_PADDING OFF
GO
/****** Object: Index [IX_CCWiseInstr2_ID] Script Date: 9/17/2013 3:54:27 AM ******/
CREATE NONCLUSTERED INDEX [IX_CCWiseInstr2_ID] ON [dbo].[CCWiseInstr2]
(
[ID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, SORT_IN_TEMPDB = OFF, DROP_EXISTING = OFF, ONLINE = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
GO
/****** Object: Table [dbo].[CCWiseDocumentNames2] Script Date: 9/17/2013 3:54:18 AM ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
CREATE TABLE [dbo].[CCWiseDocumentNames2](
[ID] [int] NULL,
[BK_PG] [varchar](50) NULL,
[NAME] [varchar](100) NULL,
[OTHERNAM] [varchar](100) NULL,
[TYPE] [varchar](50) NULL,
[INDEXNAME] [varchar](50) NULL
) ON [PRIMARY]
GO
SET ANSI_PADDING OFF
GO
/****** Object: Index [IX_CCWiseDocumentNames2_ID] Script Date: 9/17/2013 3:54:18 AM ******/
CREATE NONCLUSTERED INDEX [IX_CCWiseDocumentNames2_ID] ON [dbo].[CCWiseDocumentNames2]
(
[ID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, SORT_IN_TEMPDB = OFF, DROP_EXISTING = OFF, ONLINE = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
GO
SET ANSI_PADDING ON
GO
/****** Object: Index [IX_CCWiseDocumentNames2_NAME] Script Date: 9/17/2013 3:54:18 AM ******/
CREATE NONCLUSTERED INDEX [IX_CCWiseDocumentNames2_NAME] ON [dbo].[CCWiseDocumentNames2]
(
[NAME] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, SORT_IN_TEMPDB = OFF, DROP_EXISTING = OFF, ONLINE = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
GO