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

Quizzes de desenvolupament web

The UPDATE statement is a data manipulation language (DML).

A NOT NULL constraint can accept NULL values.

This query is correct: SELECT * FROM employee WHERE age IN (20,21,22);

The DEFAULT constraint inserts a default value into a column.

SQL injection is a technique where malicious users inject SQL commands into an SQL statement, via website input.