Informàtica. Programació. Desenvolupament web. Disseny gràfic. Xarxes.

Quizzes de desenvolupament web

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A foreign key declaration can include this: ON UPDATE CASCADE.

A NOT NULL constraint can accept NULL values.

NOW() Returns the current date and time.

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

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