An SQL function named DEPT_INFO was created as follows:

What is the correct way to use this function in a query?
Given the SQL statement: CREATE ALIAS total_sales FOR sales Which statement is valid?
Which DB2 object is associated with PREVIOUS VALUE and NEXT VALUE expressions?
The EXCLUSIVE MODE option of the LOCK TABLE statement is used to prevent which of the following?
When is it appropriate to use a sequence?
What functionality allows users to perform a UNION operation between a DB2 table and an Oracle view?
Which DB2 object can be used to improve the execution performance of qualified SELECT statements?
Which tool allows users to connect to a DB2 database using a wizard?
If no isolation level is specified, what is the default isolation level used?
Which type of lock allows the lock owner and all concurrent applications to read, but not update, the locked data?