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Answer: C, D
99.Which three are true regarding the user of outer joins?(Choose three)
A.You cannot use In operator in a condition that involves an outerjoin.
B.You use(+) on both sides of the WHERE condition to perferm an outerjoin.
C.You use(*) on both sides of the WHERE condition to perferm an outerjoin.
D.You use an outerjoin to see only the rows that do not meet the join condition.
E.In the WHERE condotion,you user(+) following the name of the column in the table without matching rows,to perform an outerjoin.
F.You cannot link a condition that is involved in an outerjoin to another condition by using the OR operator.
Answer: D , E, F
QUESTION NO: 74
Which three statements about subqueries are true? (Choose three)
A. A single row subquery can retrieve only one column and one row.
B. A single row subquery can retrieve only one row but many columns.
C. A multiple row subquery can retrieve multiple rows and multiple columns.