PostgreSQLdata extraction

Extract @Mentions from PostgreSQL Text Column with Regex

Use PostgreSQL regexp_matches to extract @username mentions from text columns. SQL examples for social media data analysis.

The Regex Pattern

Regex pattern

@[a-zA-Z0-9_]+

Use this pattern with PostgreSQL's ~ operator.

PostgreSQL SQL Example

-- Extract all @username mentions from a posts or comments table in PostgreSQL using regexp_matches for social data analysis
SELECT *
FROM your_table
WHERE your_column ~ '@[a-zA-Z0-9_]+';

How This Works

Extract all @username mentions from a posts or comments table in PostgreSQL using regexp_matches for social data analysis. The regex pattern is used with PostgreSQL's ~ 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.

Need a custom SQL + Regex query?

Describe your specific use case in plain English. RegSQL generates the exact PostgreSQL query with the right regex pattern for your schema.

🤖 Generate PostgreSQL SQL Free 🔍 Generate Regex Pattern

Related SQL Patterns

Extract Email from MySQL Users Table with Regex

Learn how to extract and validate email addresses from MySQL users table using REGEXP. SQL query examples with regex patterns.

MySQL

Validate Email Address in PostgreSQL with Regex

Use PostgreSQL ~ operator to validate email addresses. SQL examples for email validation with regex in Postgres databases.

PostgreSQL

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.

MySQL

Extract Username Part from Email in MySQL with Regex

Extract the username portion before @ from email addresses stored in MySQL. SQL examples using REGEXP_SUBSTR.

MySQL