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PHP mysqlで複数の値を返す内部クエリを処理するには?
たとえば。
SELECT value1 FROM table1 WHERE value1 != (SELECT value1 FROM table2 WHERE .....)
問題は(SELECT value1 FROM table2 WHERE .....)、複数の値を返すことです。
(SELECT value1 FROM table2 WHERE .....)
これを解決するには?
私を助けてください....