Computing. Programming. Web development. Graphic design. Networking.

Web development quizzes

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This query is correct: SELECT column1 FROM table1 UNION SELECT column2 FROM table2;

This query is correct: UPDATE table_name SET column1=value1;

SQL can retrieve data from a database.

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

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