回答編集履歴
2
typo\.
answer
CHANGED
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@@ -7,8 +7,8 @@
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7
7
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@category := category as dummy_field
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8
8
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from Table1, (select @rank := 0, @category := 0) as dummy_table
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9
9
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order by category, point desc
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10
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-
) as
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10
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+
) as t
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11
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-
where
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11
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+
where t.rank <= 2
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12
12
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order by category, point desc
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13
13
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```
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14
14
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こんな感じでしょうか？
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1
typo\.
answer
CHANGED
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@@ -4,11 +4,11 @@
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4
4
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(
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5
5
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select *,
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6
6
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@rank := if (@category = category, @rank + 1, 1) as rank,
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7
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-
@category := category as
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7
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+
@category := category as dummy_field
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8
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-
from
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8
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+
from Table1, (select @rank := 0, @category := 0) as dummy_table
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9
9
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order by category, point desc
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10
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-
) as
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10
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+
) as table
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11
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-
where
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11
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+
where table.rank <= 2
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12
12
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order by category, point desc
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13
13
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```
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14
14
|
こんな感じでしょうか？
|