Query OK, 0 rows affected (0.02 sec) mysql> INSERT INTO t1(a, b) VALUES (200, 10); ERROR 3819 (HY000): Check constraint 't1_chk_1' is violated. CREATE TABLE AS SELECT … と INSERT INTO … SELECT では、 ...

第41回では、CHAR型とVARCHAR型の違いについて簡単に説明を行いました。しかし、MySQLにはそれ以外にも文字列を扱うことができる型が複数あります。そこで今回はMySQLで扱える文字列型について紹介していきます。

本連載では、これからMySQLの勉強をはじめる方々を対象に「コードを叩く前に全体像を把握しよう！」という精神で、MySQLの基本事項について解説 ...

Though the typical SQL Insert statement processes one record at a time, MySQL's Insert lets you combine multiple records into a single statement.

Type "use MySQL-Database" where "MySQL-Database" is the name of the database containing the table into which you want to insert a string.

Jack Wallen explains how to add data into a MySQL table from the command line.

I have an application that reads an image file and puts it into a MEDIUMBLOB. Or at least that's what it's supposed to do. What it actually does is nothing. I can do the database insert, which ...