Informática. Programación. Desarrollo web. Diseño gráfico. Redes.

Quizzes de desarrollo web

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

This statement adds a column: ALTER TABLE employee DROP COLUMN age.

This creates a database called database1: CREATE DATABASE database1;

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

SQL can retrieve data from a database.