皆さんは、find_in_setという関数をご存知でしょうか？MySQLの固有の関数のためあまり馴染みが無いかもしれませんが、ものすごく刺さるときは刺さるという関数です。

New features in MySQL 9.0.0 This initial 9.x Innovation release, Oracle says, is preparation for new features in upcoming releases. But it still contains useful things and can be upgraded to from ...

How to Insert a String in MySQL. MySQL database servers may not come with graphical administration tools, but that is the price your small business pays for free database software. The fact that ...