質問編集履歴
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ソースコード若干修正(文言のみ)
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FROM
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[DWH_PP].[dbo].[DAILY_TRX_PLMS_2018]
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WHERE
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ROW_NUMBER() OVER (PARTITION BY [DTP_MEMBER_ID] ORDER BY [DTP_TRX_DATE] ASC) AS 'TRX_COUNT'
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FROM [DWH_P
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FROM [DWH_PP].[dbo].[DAILY_TRX_PLMS_2018]
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WHERE [DTP_COMPANY] = '001' AND
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FROM
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[DWH_PP].[dbo].[DAILY_TRX_PLMS_2018]
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WHERE
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ROW_NUMBER() OVER (PARTITION BY [DTP_MEMBER_ID] ORDER BY [DTP_TRX_DATE] ASC) AS 'TRX_COUNT'
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FROM [DWH_P
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FROM [DWH_PP].[dbo].[DAILY_TRX_PLMS_2018]
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WHERE [DTP_COMPANY] = '001' AND
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1
詳細を記載
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SQLに似たような性質(データ型:decimal)の列に条件を置き換えてSQLクエリを回したところ、大幅にパフォーマンスが異なり、困惑しております。
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### 前提・実現したいこと
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クエリのパフォーマンスの悪化原因を明らかにし、パフォーマンスの大幅な改善を図りたい。
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### 発生している問題・エラーメッセージ
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```
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SQLに似たような性質(データ型:decimal)の列に条件を置き換えてSQLクエリを回したところ、大幅にパフォーマンスが異なり、困惑しております。
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DTP_POINTS
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Decimal(16,0) null) - NOT ALLLOW NULL
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処理時間5分
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DTP_POINTS_BASIC
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Decimal(18,0)not null) - ALLLOW NULL
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処理時間2時間以上
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```
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### 該当のソースコード
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2つあります
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```SQL
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違いは指定した列の違いになります。指定列が[DTP_POINTS]と [DTP_POINTS_BASIC] だけが以下のコードで異なります。
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DTP_POINTS
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Decimal(16,0) null) - NOT ALLLOW NULL
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処理時間5分
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DTP_POINTS_BASIC
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Decimal(18,0)not null) - ALLLOW NULL
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処理時間2時間以上
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**__処理時間5分__**
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WITH BASE AS (SELECT [DTP_MEMBER_ID]
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FROM
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[DWH_PONTA].[dbo].[DAILY_TRX_PLMS_2018]
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WHERE
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[DTP_COMPANY] = '001' AND
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MONTH([DTP_TRX_DATE]) = '5' AND
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YEAR([DTP_TRX_DATE]) = '2018' AND
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[DTP_TRANSACTION_CODE] = 'POI')
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SELECT
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(SELECT COUNT(DISTINCT [DTP_MEMBER_ID]) FROM BASE) AS 'UNIQUE_MEMBER_PREVIOUS_MONTH',
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COUNT(DISTINCT BASE2.[DTP_MEMBER_ID]) AS 'UNIQUE_MEMBER_NEXT_MONTH',
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SUM(BASE2.[DTP_AMOUNT]) AS 'AMOUNT_AT_FIRST_TRX',
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SUM(BASE2.[DTP_POINTS]) AS 'POINT_ISSUE_AT_FIRST_TRX',
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SUM(CASE WHEN BASE2.[DTP_AMOUNT] >= 100000 THEN 500 ELSE BASE2.[DTP_POINTS] END) AS 'BONUS_POINT_2X',
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SUM(CASE WHEN BASE2.[DTP_AMOUNT] >= 100000 THEN 750 ELSE FLOOR(BASE2.[DTP_POINTS] * 1.5) END) AS 'BONUS_POINT_3X',
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SUM(CASE WHEN BASE2.[DTP_AMOUNT] >= 100000 THEN 1000 ELSE FLOOR(BASE2.[DTP_POINTS] * 2) END) AS 'BONUS_POINT_4X',
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SUM(CASE WHEN BASE2.[DTP_AMOUNT] >= 100000 THEN 1250 ELSE FLOOR(BASE2.[DTP_POINTS] * 2.5) END) AS 'BONUS_POINT_5X'
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FROM (
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SELECT
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[DTP_MEMBER_ID],
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[DTP_AMOUNT],
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[DTP_POINTS],
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ROW_NUMBER() OVER (PARTITION BY [DTP_MEMBER_ID] ORDER BY [DTP_TRX_DATE] ASC) AS 'TRX_COUNT'
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FROM [DWH_PONTA].[dbo].[DAILY_TRX_PLMS_2018]
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WHERE [DTP_COMPANY] = '001' AND
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MONTH([DTP_TRX_DATE]) = '6' AND
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YEAR([DTP_TRX_DATE]) = '2018' AND
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[DTP_TRANSACTION_CODE] = 'POI' AND [DTP_MEMBER_ID] IN
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(SELECT [DTP_MEMBER_ID] FROM BASE)) AS BASE2
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WHERE TRX_COUNT = 2
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**__処理時間2時間以上__**
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WITH BASE AS (SELECT [DTP_MEMBER_ID]
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FROM
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[DWH_PONTA].[dbo].[DAILY_TRX_PLMS_2018]
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WHERE
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[DTP_COMPANY] = '001' AND
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MONTH([DTP_TRX_DATE]) = '5' AND
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YEAR([DTP_TRX_DATE]) = '2018' AND
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[DTP_TRANSACTION_CODE] = 'POI')
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SELECT
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(SELECT COUNT(DISTINCT [DTP_MEMBER_ID]) FROM BASE) AS 'UNIQUE_MEMBER_PREVIOUS_MONTH',
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COUNT(DISTINCT BASE2.[DTP_MEMBER_ID]) AS 'UNIQUE_MEMBER_NEXT_MONTH',
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SUM(BASE2.[DTP_AMOUNT]) AS 'AMOUNT_AT_FIRST_TRX',
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SUM(BASE2.[DTP_POINTS_BASIC]) AS 'POINT_ISSUE_AT_FIRST_TRX',
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SUM(CASE WHEN BASE2.[DTP_AMOUNT] >= 100000 THEN 500 ELSE BASE2.[DTP_POINTS_BASIC] END) AS 'BONUS_POINT_2X',
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SUM(CASE WHEN BASE2.[DTP_AMOUNT] >= 100000 THEN 750 ELSE FLOOR(BASE2.[DTP_POINTS_BASIC] * 1.5) END) AS 'BONUS_POINT_3X',
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SUM(CASE WHEN BASE2.[DTP_AMOUNT] >= 100000 THEN 1000 ELSE FLOOR(BASE2.[DTP_POINTS_BASIC] * 2) END) AS 'BONUS_POINT_4X',
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SUM(CASE WHEN BASE2.[DTP_AMOUNT] >= 100000 THEN 1250 ELSE FLOOR(BASE2.[DTP_POINTS_BASIC] * 2.5) END) AS 'BONUS_POINT_5X'
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FROM (
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SELECT
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[DTP_MEMBER_ID],
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[DTP_AMOUNT],
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[DTP_POINTS_BASIC],
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ROW_NUMBER() OVER (PARTITION BY [DTP_MEMBER_ID] ORDER BY [DTP_TRX_DATE] ASC) AS 'TRX_COUNT'
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FROM [DWH_PONTA].[dbo].[DAILY_TRX_PLMS_2018]
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WHERE [DTP_COMPANY] = '001' AND
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MONTH([DTP_TRX_DATE]) = '6' AND
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YEAR([DTP_TRX_DATE]) = '2018' AND
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[DTP_TRANSACTION_CODE] = 'POI' AND [DTP_MEMBER_ID] IN
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(SELECT [DTP_MEMBER_ID] FROM BASE)) AS BASE2
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WHERE TRX_COUNT = 2
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```
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### 試したこと
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WHERE条件などで IS NOT NULLなどの条件を記載しましたが、特に変わらず(といいうよりDB内にNULLは存在せず)。
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### 補足情報(FW/ツールのバージョンなど)
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MS SQL Server
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