Users
1,000 万件のレコードを含むテーブルがあります。これはテーブル構造です:
CREATE TABLE [dbo].[Users](
[UsersID] [int] IDENTITY(100000,1) NOT NULL,
[LoginUsersName] [nvarchar](50) NOT NULL,
[LoginUsersPwd] [nvarchar](50) NOT NULL,
[Email] [nvarchar](80) NOT NULL,
[IsEnable] [int] NOT NULL,
[CreateTime] [datetime] NOT NULL,
[LastLoginTime] [datetime] NOT NULL,
[LastLoginIp] [nvarchar](50) NOT NULL,
[UpdateTime] [datetime] NOT NULL,
CONSTRAINT [PK_Users] PRIMARY KEY CLUSTERED
(
[UsersID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
列に非クラスター化インデックスがありUpdateTime
ます。
ページング SQL:
;WITH UserCTE AS (
SELECT * FROM
(SELECT
ROW_NUMBER() OVER (ORDER BY UpdateTime DESC) AS row,UsersID as rec_id -- select primary key only
FROM
dbo.Users WITH (NOLOCK)
) A WHERE row BETWEEN 9700000 AND 9700020
)
SELECT
*
FROM
dbo.Users WITH (NOLOCK) WHERE UsersID IN (SELECT UserCTE.rec_id FROM UserCTE)
上記のクエリ:
SQL Server parse and compile time:
CPU time = 0 ms, elapsed time = 3 ms.
(21 row(s) affected)
SQL Server Execution Times:
CPU time = 2574 ms, elapsed time = 3549 ms.
ページングの速度を向上させる方法についての提案をいただければ幸いです。ありがとう!