HTN20190109 https://blog.hatena.ne.jp/HTN20190109/ HTN20190109の日記 https://htn20190109.hatenablog.com/ DB MySQL (8.0.26) drop table tab1; create table tab1( col1 int primary key, col2 int, col3 int, col4 int) partition by range (col1) ( partition p1 values less than (0) , partition p2 values less than (maxvalue) ); set @sSQL := concat(" explain "," select * from tab1 t1,tab1 t2 ");prepare stmt from @sSQ… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fhtn20190109.hatenablog.com%2Fentry%2F2022%2F02%2F01%2F213705" title="動的SQLの実行計画確認 - 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 2022-02-01 21:37:05 rich https://htn20190109.hatenablog.com/entry/2022/02/01/213705 1.0 100%