Which of the following is the result of a select statement?

Related MCQs

• 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?
• View the Exhibit and examine the structure of the EMPLOYEES and DEPARTMENTS tables. Which SET operator would you use in the blank space in the following SQL statement to list the departments where all the employees have managers? SELECT department_id FROM departments ____ SELECT department_id FROM employees WHERE manager_id IS NULL;
• For which Exception, if a SELECT statement attempts to retrieve data based on its conditions, this exception is raised when no rows satisfy the SELECT criteria?
• Which of the following is the clause that makes a singleton SELECT different from the normal SELECT?
• The              clause allows us to select only those rows in the result relation of the           clause that satisfy a specified predicate.
• Using the SQL GROUP BY phrase with a SELECT statement can help detect which of the following problems?
• Which view that contains more than one table in the top-level FROM clause of the SELECT statement:
• In SQL the statement select * from R, S is equivalent to
• The SQL statement SELECT SUBSTR(‘123456789’, INSTR(‘abcabcabc’,’b’),
•                          allows individual row operation to be performed on a given result set or on the generated by a selected by a selected statement.