Which of the following is not true of SQL views?

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?
•                  dump, writes out SQL DDL statements and SQL insert statements to a file, which can then be reexecuted to re- create the database.
• Which SQL function is used to count the number of rows in a SQL query?
• SQL Server has mainly how many types of views?
• Which of the following statements is/are not true for SQL profiler?
• Which of the following is true regarding views?
• Suppose now that R(A,B:) and S(A,B:) are two relations with r and s tuples, respectively (again, not necessarily distinct). If m is the number of (not necessarily distinct) tuples in the result of the SQL query: R intersect S; Then which of the following is the most restrictive, correct condition on the value of m?
• In the SQL Cursor, which attribute is TRUE when a cursor has some remaining rows to fetch, and FALSE when a cursor has no rows left to fetch?
• Which of the following is NOT a type of SQL constraint?
• Which of the following information does an SQL DDL not specify?