PostgreSQLdata validation

Validate URL Slug in PostgreSQL Using Regex

Use PostgreSQL regex to validate URL slug format in database columns. SQL examples for permalink and slug validation.

The Regex Pattern

Regex pattern

^[a-z0-9]+(-[a-z0-9]+)*$

Use this pattern with PostgreSQL's ~ operator.

PostgreSQL SQL Example

-- Validate slug or permalink values in a PostgreSQL posts or products table using regex ~ operator
SELECT *
FROM your_table
WHERE your_column ~ '^[a-z0-9]+(-[a-z0-9]+)*$';

How This Works

Validate slug or permalink values in a PostgreSQL posts or products table using regex ~ operator. 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 validation — it avoids loading data into application memory just to filter it with a regex.

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