Shulou(Shulou.com)06/01 Report--

This article uses easy-to-understand examples to introduce what is the logo of mysql, the content is very detailed, interested friends can refer to, hope to be helpful to you.

What is the identity column of mysql

The identification column in MySQL is also known as self-growing column. There is an attribute of identification column in the table field property of mysql. The function is to realize the self-increment of table data. There is only one identification column in a table, and the step size can be set. The default is 1.

Characteristics of identity column

1. The identity column can be matched with the primary key

2. A table has only one identity column

3. The type of identity column can only be numeric.

4. The step size of the identity column can be set by SET auto_increment_increment=' step'.

MySQL is a relational database management system developed by the Swedish company MySQL AB and belongs to the products of Oracle. MySQL is one of the most popular relational database management systems. In the aspect of WEB application, MySQL is one of the best RDBMS (Relational Database Management System) application software. MySQL is a relational database management system in which relational databases store data in different tables instead of all data in one large warehouse, which increases speed and flexibility.

About what the logo of mysql is shared here, I hope the above content can be of some help to you, can learn more knowledge. If you think the article is good, you can share it for more people to see.

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.