PostgreSQLdata extraction

Extract Domain from URL in PostgreSQL Using Regex

Use PostgreSQL regexp_matches to extract domain names from URL columns. SQL examples for URL domain parsing.

The Regex Pattern

Regex pattern

^https?://([^/?#]+)

Use this pattern with PostgreSQL's ~ operator.

PostgreSQL SQL Example

-- Parse and extract the domain name from full URL strings in a PostgreSQL table using regexp_matches
SELECT *
FROM your_table
WHERE your_column ~ '^https?://([^/?#]+)';

How This Works

Parse and extract the domain name from full URL strings in a PostgreSQL table using regexp_matches. 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.

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