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user_id、purchase sku、およびイベントtime_createdを格納するテーブル（user_tracking）があります。ユーザーが購入に戻るたびに、元のuser_idが新しいタイムスタンプで参照されます。

User_ID    Sku             Time_Created
  1       1234          2012-10-01 01:00:00
  2       2345          2012-10-02 02:00:00
  3       6789          2012-10-02 01:00:00
  2       5432          2012-10-04 04:00:00

返品のお客様の使用状況を測定したいのですが、最初の購入から7〜60日以内に返品したお客様のみを対象としています。現在、私のクエリは次のようになっています。

SELECT
  total_purchases.user_id             as user_1_id,
  total_purchases.time_created        as time_1_created,
  total_purchases.total_purchases     as total_original_purchases,
  total_return.user_id                as user_2_id,
  total_return.time_created           as time_2_created,
  total_return.total_return_purchases as total_return_purchases
FROM (SELECT
    user_tracking.user_id                as user_id,
    user_tracking.time_created           as time_created,
    COUNT(DISTINCT user_tracking.sku)    as total_purchases
      FROM user_tracking
      WHERE user_tracking.time_created BETWEEN "2012-10-01 00:00:00"
      AND "2012-10-15 00:00:00") AS total_purchases
  LEFT JOIN (SELECT
           user_tracking.user_id                as user_id,
           user_tracking.time_created           as time_created,
           COUNT(DISTINCT user_tracking.sku)    as total_return_purchases
         FROM user_tracking
         WHERE user_tracking.time_created BETWEEN "2012-10-01 00:00:00"
         and "2012-12-15 00:00:00") AS total_return
    ON total_purchases.user_id = total_return.user_id

元のユーザーとの7〜60日以内の購入のみを測定していることを確認するにはどうすればよいですか？

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1 に答える 1

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間隔を使用できます

AND datecolumn BETWEEN (datecolumn, INTERVAL 7 DAYS) AND (datecolumn, INTERVAL 60 DAYS)
于 2013-01-29T05:37:20.673 に答える