【SQL超入門講座】21.CASE｜条件に合わせて処理を分ける方法
kino-code.com
【SQL超入門講座】21.CASE｜条件に合わせて処理を分ける方法
こんにちはキノコードです。皆さんはSQLでカラムの値に応じて異なる値を入力したり、フラグを立てたりしたい時がありませんか？例えば、生徒のテストの点数が記録されたこちらのテーブルを見てください。合否のカラムを作成し、生徒のテストの点数が3 ...
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