Home/ Questions/Q 676429
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-14T00:55:36+00:00

I’m a bit confused on the functionality of the REGEX support for MySQL and

  • 0

I’m a bit confused on the functionality of the REGEX support for MySQL and I have yet to find a solid example on how to separate a result with REGEX within an sql statement.

Example:

How could I pull data from a table emails that looks something like…

+-------------------------+
|Emails                   |
|-------------------------|
|Some.email@yourDomain.com|
+-------------------------+

and return something through an sql statement that looks like…

+------------------------------+
|Username   |  Domain    | TLD |
|-----------|------------|-----|
|some.email | yourdomain | com |
+------------------------------+
Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    MySQL doesn’t have built-in functionality to do what you’re asking for. It would be possible by defining some new functions, but it’s probably easier to just do it in whatever programming language you’re accessing the database through.

    For something as simple as an email address though, you shouldn’t need to use regular expressions at all, you can use the SUBSTRING_INDEX() function, as:

    SELECT
    SUBSTRING_INDEX(email, '@', 1) AS Username,
    SUBSTRING_INDEX(SUBSTR(email, LOCATE('@', email)), '.', 1) AS Domain,
    SUBSTRING_INDEX(email, '.', -1) AS TLD
FROM users;

    In words, that’s:

    • Username = everything before the first ‘@’
    • Domain = everything between the first ‘@’ and the first ‘.’
    • TLD = everything after the last ‘.’
    • 0