SQL String Functions

SQL String Functions — a practical guide to SQL string functions with clear examples you can reuse in real projects.

SQL Tutorial Series (41/100). Prefer one article? Read the complete SQL tutorial.

Short description

Function names vary slightly by DBMS — check your dialect.

Strings (MySQL-style)

SELECT CONCAT(first_name, ' ', last_name) AS full_name,
       LOWER(email) AS email_norm
FROM users;