tamata78 https://blog.hatena.ne.jp/tamata78/ 気軽に楽しくプログラムと遊ぶ https://tamata78.hatenablog.com/ Oracle MySQL PostgreSQL Oracle TO_DATE(TO_CHAR(SYSDATE), 'YY-MM-DD') MySQL DATE_FORMAT( SYSDATE() , '%Y-%m-%d') Postgres TO_DATE('20060830', 'YYYYMMDD') 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftamata78.hatenablog.com%2Fentry%2F2016%2F06%2F20%2F135057" title="Oracle,MySQL,Postgresの日付型→文字列型変換(YYYY/MM/DD) - 気軽に楽しくプログラムと遊ぶ" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> Hatena Blog https://hatena.blog 2016-06-20 13:50:57 rich https://tamata78.hatenablog.com/entry/2016/06/20/135057 1.0 100%