サービスを運用していると、ときどき日や月をまたいだとある時間に起きた処理を探したいことがあるかもしれません。今回はそんな時に役に立つ機能に関して紹介していきたいと思います。 今回はMySQL Shellをインストールして実行していきますが ...

This blog tell the difference between the Datetime vs Timestamp in MySQL and PHP. 1> Datetime and Timestamp are used to store datetime and then retrieve the datetime back. 2> Basically, In this we ...

ALTER TABLE mysql.innodb_table_stats MODIFY last_update TYPE_MYSQL_TIMESTAMP NOT NULL DEFAULT current_timestamp() ON UPDATE current_timestamp(); SHOW CREATE TABLE mysql.innodb_table_stats; ALTER TABLE ...

The TIMESTAMP data type is the only data type which is used to have MySQL automatically set the time when a row is inserted and/or updated. DATETIME columns cant do this. We can define more than one ...

`clustered_index_size` bigint(20) unsigned NOT NULL, `sum_of_other_index_sizes` bigint(20) unsigned NOT NULL, PRIMARY KEY (`database_name`,`table_name`) ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb3 ...

I'm a MySQL noob. As such, certain things confuse the heck out of me, due to a general lack of experience. Here is what I am trying to accomplish:<BR><BR>I want to calculate the difference, in days, ...