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Web development quizzes

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SQL can retrieve data from a database.

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

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

We use the DIFFERENT keyword to retrieve different values, for example: SELECT DIFFERENT column_name FROM table_name;

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