What is SQL? — a practical guide to What is SQL with clear examples you can reuse in real projects.
SQL Tutorial Series (2/100). Prefer one article? Read the complete SQL tutorial.
Short description
SQL lets you define schemas (DDL), manipulate data (DML), control access (DCL), and manage transactions (TCL).
SQL categories
DDL → CREATE ALTER DROP
DML → SELECT INSERT UPDATE DELETE
DCL → GRANT REVOKE
TCL → COMMIT ROLLBACK