MySQL の update 文で inner join する
2009年4月25日 17:47
基本的な SQL 文は MySQL だろうが PostgreSQL だろうが、MS Access だろうが何だろうが、変わりはないんですが、一応メモ。
MySQL の update 文の中で inner join するには、以下のようにします。
update table1 inner join table2 on table1.id = table2.id set table1.cellname1 = hoge where table2.cellname2 = 'huga';
inner join については、PostgreSQLで複数のテーブルを結合して処理する方法に、詳しく書いています。
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