Windows. Linux. Wordpress. Joomla. GIMP. Inkscape. Kdenlive. Hardware. Redes.

Quizzes de desarrollo web

This query retrieves the employees whose names end with h: SELECT * FROM employees WHERE name LIKE 'h%';

Querying directly from a table takes more time than querying from a view.

NULL is exactly the same as empty string.

This query retrieves the first 3 rows: SELECT * FROM employee LIMIT 3;

Indexes allow the database application to find data slowly.