MySQLのお勉強をする。 https://dev.mysql.com/doc/refman/8.0/ja/tutorial.htmlを試す。 phpMyAdminがあるので接続自体はできるが、シェルの ...

MySQL automatically sorts the data entered into a table by indexes, combinations of fields that can be specified manually or automatically. This sort is invisible to the user, but allows specific ...

This amongst other things truncates data that are two long for a VARCHAR field with a warning instead of giving an error. It requires the user to login again.

I am who I am. Relational database advantages include join table query, avoids data duplication, avoids inconsistent records, better security, cater for future requirements (by tech-ict.com). Over the ...