回答編集履歴
2
複数カラムを取得する方法を追記
test
CHANGED
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@@ -8,4 +8,10 @@
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8
8
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9
9
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```
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10
10
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11
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+
全てのカラムを取得したい場合はこうですね。
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11
12
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13
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+
```SQL
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14
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+
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15
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+
SELECT * FROM `table` GROUP BY `a` HAVING COUNT(`a`) <> 1
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16
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+
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17
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```
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1
全文表示
test
CHANGED
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@@ -4,6 +4,8 @@
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4
4
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5
5
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```SQL
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6
6
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7
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-
HAVING COUNT(a) <> 1
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7
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+
SELECT `a` FROM `table` GROUP BY `a` HAVING COUNT(`a`) <> 1
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8
8
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9
9
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```
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10
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+
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11
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+
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