Extract Email Domain from MySQL Column with Regex
Use MySQL REGEXP or SUBSTRING_INDEX to extract the domain part from email addresses. SQL examples for email domain extraction.
The Regex Pattern
Regex pattern
@([a-zA-Z0-9.\-]+\.[a-zA-Z]{2,})$Use this pattern with MySQL's REGEXP operator.
MySQL SQL Example
-- Extract the domain part after @ from email addresses stored in a MySQL users table using string functions
SELECT *
FROM your_table
WHERE your_column REGEXP '@([a-zA-Z0-9.\\-]+\\.[a-zA-Z]{2,})$';How This Works
Extract the domain part after @ from email addresses stored in a MySQL users table using string functions. The regex pattern is used with MySQL's REGEXP operator to filter rows at the database level.
Using regex directly in SQL is efficient for use cases like data extraction — it avoids loading data into application memory just to filter it with a regex.
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