What is the information_schema database?

In MySQL version 5.02 and above there is an additional database called information_schema. This database provides access to the database metadata. This includes the name of a database or a table, the data type of a column, access privileges, etc.


information_schema is the information database where the information about all the other databases is kept. It is a built-in virtual database with the sole purpose of providing information about the database system itself. The MySQL server automatically populates the tables in the information_schema. 

 

The important thing to remember about the information_schema database is that you can query it, but you cannot change its structure or modify its data.

  • 11 أعضاء وجدوا هذه المقالة مفيدة
هل كانت المقالة مفيدة ؟

مقالات مشابهة

What type of databases do you support? PGSQL and MySQL?

All our servers support MySQL and PostgreSQL databases. Also with any of our hosting packages...

How to repair a MySQL database?

In this article we will show you two ways to repair a MySQL database.  1) Through...

How to optimize a MySQL database using phpMyAdmin?

It is always a good idea to keep your databases' tables optimized. Fortunately, making this...

How to change the database engine of a MySQL database table?

In this article we will show you how to change the database engine of a MySQL table. Let's...

I get an error 'ACCESS DENIED CREATE DATABASE db_name' when I try to import a database

In order to solve this issue follow these steps: Open the MySQL dump with a text editor on...