A SQL view is a virtual table that is constructed from other tables or views. False True TRUE ANSWER : ? YOUR ANSWER : ?
The DROP TABLE statement: is not an SQL statement. deletes the table structure only. deletes the table structure along with the table data. works whether or not referential integrity constraints would be violated. TRUE ANSWER : ? YOUR ANSWER : ?
There are three SQL data modification operations: insert, modify and delete. False True TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is an SQL trigger supported by Oracle? BEFORE All of these INSTEAD OF AFTER TRUE ANSWER : ? YOUR ANSWER : ?
A ________ is a stored program that is attached to a table or a view. embedded SELECT statement pseudofile trigger None of these TRUE ANSWER : ? YOUR ANSWER : ?
A reason for using an SQL view to hide columns is: to simplify a result only. to prevent the display of sensitive data only. to accomplish both of the above. None of these TRUE ANSWER : ? YOUR ANSWER : ?
A ________ is a program that performs some common action on database data and that is stored in the database. trigger None of these pseudofile stored procedure TRUE ANSWER : ? YOUR ANSWER : ?
The SQL ALTER statement can be used to: add rows to the table. delete rows from the table. change the table data. change the table structure. TRUE ANSWER : ? YOUR ANSWER : ?
SQL views can be used to hide: complicated SQL syntax only. columns and rows only. both of the above can be hidden by an SQL view. None of these TRUE ANSWER : ? YOUR ANSWER : ?
What is an SQL virtual table that is constructed from other tables? A relation A view Just another table Query results TRUE ANSWER : ? YOUR ANSWER : ?