回答編集履歴
1
コード修正
answer
CHANGED
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@@ -4,10 +4,9 @@
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4
4
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SELECT A.*, BC.*
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5
5
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FROM TABLE_A A
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6
6
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INNER JOIN
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7
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-
(SELECT *, 0 AS XXX FROM TABLE_B
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7
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+
(SELECT B.*, 0 AS XXX FROM TABLE_B B
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8
8
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UNION ALL
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9
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-
SELECT *, 1 AS XXX FROM TABLE_C
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9
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+
SELECT C.*, 1 AS XXX FROM TABLE_C C
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10
10
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) BC
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11
11
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ON A.ID = BC.ID AND A.XXX = BC.XXX;
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12
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-
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13
12
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```
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