Adding Index to column in mysql [closed]

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Closed 7 years ago.

How do I create an index with PHPmyadmin?

I have a database with 5,000 rows of

ID | IP | DATE

Before added data to this table I made id as Primary Key,

The website use this query:

mysql_query("SELECT * FROM users WHERE ip = '$ip'");

I read today that indexes can speed up and performance, and in my case how do i need to add index to IP column,

I am to phpmyadmin and to actions I see "Add unique index" and "Add index" options, Im new in this, appreciate your help, thank you.

回答1:

Click on the icon that says "index" in the row for ip. (It's the one with the lightening bolt). Don't choose primary key or unique. Just index.

回答2:

Or you can run a query:

ALTER TABLE `users` ADD INDEX `ip` (`ip`)

来源：https://stackoverflow.com/questions/14419090/adding-index-to-column-in-mysql