回答編集履歴
1
chousei
test
CHANGED
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@@ -15,3 +15,23 @@
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) as t3 on t1.id=t3.item_id
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```
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select *は無駄でしたね
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```SQL
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select * from item_master as t1
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inner join item_prices as t2
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on t1.id=t2.item_id
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and not exists(
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select 1 from item_prices
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where t2.item_id=item_id and t2.created_at<created_at)
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```
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