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主キーのないテーブルから重複レコードを削除する - とりあえず半歩
課題 主キーがないことが原因で同一レコードが複数登録されているテーブルから重複レコードを削除し、テーブル内のレコードが全て唯一な状態にする。 実行 実行環境は以下 Windows 7 Home Premium 64bit SQL Server 2008 R2 Express SQL Server Management Studio 10.50.2500.0 今回用いるテストテーブルは次の通り SELECT [name] , [price] FROM [fruitPrice] name price りんご 80 みかん 30 みかん 30 みかん 30 りんご 80 みかん 30 このテーブルを次のような状態にしたい name price りんご 80 みかん 30 上のような状態にするために、WITH句とROW_NUMBER関数を使って書いたDELETE文が下のコード WITH [dupl
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