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

Quizzes de desenvolupament web

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SQL can retrieve data from a database.

LEFT JOIN returns all rows when there is at least one match in BOTH tables

We can define aliases like this: SELECT age ALIAS myage FROM employee;

A DROP statement is a data definition language (DDL).

RDBMS stands for "Reunified Database Management System".