回答編集履歴
4
変更
answer
CHANGED
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File without changes
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3
変更
answer
CHANGED
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@@ -15,4 +15,6 @@
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15
15
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foo = test.foo + 1,
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16
16
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bar = s.foo,
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17
17
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baz = s.baz;
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18
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-
```
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18
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+
```
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19
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+
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20
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+
s.fooで更新前の値が入るのを利用する。
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2
追加
answer
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File without changes
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1
追加
answer
CHANGED
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@@ -6,4 +6,13 @@
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6
6
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foo = foo + 1,
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7
7
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bar = foo,
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8
8
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baz = bar;
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9
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+
```
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10
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+
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11
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+
こんな感じを拡張されてはいかがでしょうか？
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12
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+
```sql
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13
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+
insert into test select * from test s where s.id=1
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14
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+
ON DUPLICATE KEY UPDATE
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15
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+
foo = test.foo + 1,
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16
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+
bar = s.foo,
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17
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+
baz = s.baz;
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9
18
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```
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