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

Quizzes de desenvolupament web

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This query returns all the columns from the table Employee: SELECT + FROM Employee

A CREATE TABLE statement is a data definition language (DDL).

MySQL is (as of March 2014) the world's second most widely used open-source RDBMS.

This query copies data from table2 to table1: INSERT INTO table2 SELECT * FROM table1;

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