回答編集履歴
2
x
test
CHANGED
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@@ -6,38 +6,13 @@
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6
6
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7
7
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```sql
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8
8
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SELECT
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9
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-
*
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9
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+
sales.*
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10
10
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FROM
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11
11
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sales
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12
12
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JOIN
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13
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-
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13
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+
users
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14
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ON
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15
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-
users.date >= sales.date
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15
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+
users.id = sales.user_id AND users.date >= sales.date
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```
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17
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18
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データ
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19
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-
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20
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```sql
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21
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CREATE TABLE users (
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22
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id INT,
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23
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date DATE
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);
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-
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INSERT INTO users (id,date) VALUES (1,'2023/02/01');
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-
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CREATE TABLE sales (
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29
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user_id INT,
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date DATE
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);
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32
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-
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33
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-
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34
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INSERT INTO sales (user_id,date) VALUES (1,'2022/12/01');
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35
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INSERT INTO sales (user_id,date) VALUES (1,'2023/01/01');
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36
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INSERT INTO sales (user_id,date) VALUES (1,'2023/02/01');
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37
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INSERT INTO sales (user_id,date) VALUES (1,'2023/03/01');
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38
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-
INSERT INTO sales (user_id,date) VALUES (1,'2023/04/01');
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39
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-
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40
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-
```
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41
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-
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42
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-
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43
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-
https://www.db-fiddle.com/f/6t8Q6i3sRHXwo7ioDqikg1/
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18
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+
https://www.db-fiddle.com/f/6t8Q6i3sRHXwo7ioDqikg1/11
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1
x
test
CHANGED
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@@ -1,3 +1,5 @@
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1
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+
売上管理情報から「ユーザープレミアム登録日 > 売上日」のデータ抽出したいのであれば
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2
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+
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1
3
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日付の比較をキーにしてJOINしてはいかがでしょうか
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2
4
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3
5
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例:
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