SQL views can be used to hide: None of these both of the above can be hidden by an SQL view. columns and rows only. complicated SQL syntax only. TRUE ANSWER : ? YOUR ANSWER : ?
The SQL ALTER statement can be used to: change the table data. add rows to the table. change the table structure. delete rows from the table. TRUE ANSWER : ? YOUR ANSWER : ?
What is an advantage of placing computations in SQL views? None of these To save users from having to write an expression. To ensure that the results are consistent. To accomplish both of the above. TRUE ANSWER : ? YOUR ANSWER : ?
The SQL MAKE TABLE command is used to construct tables, define columns, define column constraints and create relationships. False True TRUE ANSWER : ? YOUR ANSWER : ?
The SQL command to create a table is: MAKE TABLE CREATE TABLE DEFINE TABLE ALTER TABLE TRUE ANSWER : ? YOUR ANSWER : ?
A trigger is a stored program that is attached to a database. False True TRUE ANSWER : ? YOUR ANSWER : ?
What is not an advantage of stored procedures? Greater security SQL can be optimized Increased network traffic Code sharing TRUE ANSWER : ? YOUR ANSWER : ?
The DROP TABLE statement: deletes the table structure only. is not an SQL statement. deletes the table structure along with the table data. works whether or not referential integrity constraints would be violated. TRUE ANSWER : ? YOUR ANSWER : ?
When a foreign key column is created without a corresponding foreign key constraint, we have created a "casual relationship" between the two tables. False True TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is an SQL trigger supported by Oracle? All of these AFTER INSTEAD OF BEFORE TRUE ANSWER : ? YOUR ANSWER : ?