What is the purpose of the SQL AS clause?

Related MCQs

• The              clause allows us to select only those rows in the result relation of the           clause that satisfy a specified predicate.
• SQL applies predicates in the                 clause after groups have been formed, so aggregate functions may be used.
• ANSI-standard SQL allows the use of special operators in conjunction with the WHERE clause. A special operator used to check whether an attribute value is null is
• If you don’t specify ASC or DESC after a SQL ORDER BY clause, the following is used by default ______________
• The UPDATE SQL clause can _____________
• The UNION SQL clause can be used with _____________
• ‘AS’ clause is used in SQL for
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• View the Exhibit and examine the data in the EMPLOYEES tables. Evaluate the following SQL statement: SELECT employee_id, department_id FROM employees WHERE department_id= 50 ORDER BY department_id UNION SELECT employee_id, department_id FROM employees WHERE department_id= 90 UNION SELECT employee_id, department_id FROM employees WHERE department_id= 10; What would be the outcome of the above SQL statement?