回答編集履歴
1
訂正
test
CHANGED
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@@ -18,13 +18,13 @@
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inner join (
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-
select purchase_id, tem_cd, price
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21
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+
select purchase_id, item_cd, price
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, max(id) as purchase_detail_id, count(*) as `個目`
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from purchase_details
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-
group by purchase_id, tem_cd, price
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+
group by purchase_id, item_cd, price
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) b
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