回答編集履歴
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追記
test
CHANGED
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@@ -9,3 +9,17 @@
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9
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WHERE AVG(salary) = 6466.50467;
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```
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追記
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16
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17
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考えたら、HAVINGもWHEREも不要ですね。
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18
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19
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```SQL
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20
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+
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SELECT AVG(salary)
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FROM employees;
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```
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