HTN20190109 https://blog.hatena.ne.jp/HTN20190109/ HTN20190109の日記 https://htn20190109.hatenablog.com/ DB Oracle --ヒント句select /*+ parallel(2) */A.*from tab1 A inner join tab1 Bon A.col1 = B.col1; --セッション変更ALTER SESSION FORCE PARALLEL QUERY;select A.*from tab1 A inner join tab1 Bon A.col1 = B.col1; --テーブル定義create table tab21(col1 int) parallel 4;insert into tab21 values(123);commit;select * from tab21; -… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fhtn20190109.hatenablog.com%2Fentry%2F2019%2F04%2F08%2F001314" title="パラレル実行 - HTN20190109の日記" 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 2019-04-08 00:13:14 rich https://htn20190109.hatenablog.com/entry/2019/04/08/001314 1.0 100%