Home > Database > Mysql Tutorial > How to Change the Auto-Increment Starting Value in MySQL?

How to Change the Auto-Increment Starting Value in MySQL?

Patricia Arquette
Release: 2024-12-08 19:27:11
Original
257 people have browsed it

How to Change the Auto-Increment Starting Value in MySQL?

Modifying Auto-Increment Starting Value in MySQL

In MySQL, the auto_increment feature automatically assigns unique sequential numbers to new records in a table. By default, this increment starts from 1. However, there may be scenarios where you require a different starting value for the auto-increment sequence.

Query to Change Auto-Increment Starting Number

To change the auto_increment starting number, you can use the ALTER TABLE statement with the AUTO_INCREMENT clause. The syntax is as follows:

ALTER TABLE table_name AUTO_INCREMENT = new_starting_value;
Copy after login

For example, to set the auto-increment starting number to 5 for a table named tbl, you would run the following query:

ALTER TABLE tbl AUTO_INCREMENT = 5;
Copy after login

Details and Considerations

When executing this query, keep the following in mind:

  • The new_starting_value must be greater than the current maximum value in the auto_increment column.
  • If the existing auto_increment values are below the new starting value, they will remain unchanged.
  • Any subsequent insertions into the table will use the new starting value as the next auto-increment number.

Reference:

For further details and additional options, refer to the official MySQL documentation on [ALTER TABLE](https://dev.mysql.com/doc/refman/8.0/en/alter-table.html).

The above is the detailed content of How to Change the Auto-Increment Starting Value in MySQL?. For more information, please follow other related articles on the PHP Chinese website!

source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Latest Articles by Author
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template