Você pode usar INFORMATION_SCHEMA:
SELECT table_name FROM INFORMATION_SCHEMA.TABLES
WHERE table_schema = 'db_name'
ORDER BY table_name ASC
Referência:http://dev.mysql.com/doc /refman/5.0/en/tables-table.html
SELECT table_name FROM INFORMATION_SCHEMA.TABLES
WHERE table_schema = 'db_name'
ORDER BY table_name ASC
