View the Exhibits and examine the structure of the COSTS and PROMOTIONS tables.
You want to display PROD_IDS whose promotion cost is less than the highest cost PROD_ID in a promotion time interval.
Examine this SQL statement:

Exhibit 1.

Exhibit 2.

What will be the result?

• A.It gives an error because the GROUP BY clause is not valid
• B.It executes successfully but does not give the required result
• C.It gives an error because the ALL keyword is not valid
• D.It executes successfully and gives the required result

Comment: *

Name: *

Email: *

Verification: *

Examine the description of the SALES1 table:

SALES2 is a table with the same description as SALES1.
Some sales data is duplicated in both tables.
You want to display the rows from the SALES1 table which are not present in the SALES2 table.
Which set operator generates the required output?

• A.UNION ALL
• B.SUBTRACT
• C.MINUS
• D.UNION
• E.INTERSECT

Comment: *

Name: *

Email: *

Verification: *