2016-07-06から1日間の記事一覧
SELECT 1, 2 FROM DUAL UNION SELECT 2, 3 FROM DUAL MINUS SELECT 1, 2 FROM DUAL; ※参考 http://www.shift-the-oracle.com/sql/minus-operator.html
SELECT 1, 2 FROM DUAL UNION SELECT 2, 3 FROM DUAL MINUS SELECT 1, 2 FROM DUAL; ※参考 http://www.shift-the-oracle.com/sql/minus-operator.html