Free Access Oracle.1z1-071.v2022-04-30.q200 Practice Test (Page 4)

Question 11

Examine the description of the CUSTOMERS table:

For customers whose income level has a value, you want to display the first name and due amount as 5% of their credit limit. Customers whose due amount is null should not be displayed.
Which query should be used?

A.Option C

B.Option A

C.Option D

D.Option E

E.Option B

Question 12

Which statement will return the last sequence number generated by the EMP_ SEQ sequence?

A.SELECT emp_ seq. CURRVAL FROM DUAL;

B.SELECT NEXTVAL FROM emp_ seq;

C.SELECT CURRVAL FROM emp_ seq;

D.SELECT emp_ seq . NEXTVAL FROM DUAL;

Question 13

Which statement is true about transactions?

A.A set of Data Manipulation Language (DML) statements executed in a sequence ending with a SAVEPOINT forms a single transaction.

B.Each Data Definition Language (DDL) statement executed forms a single transaction.

C.A set of DDL statements executed in a sequence ending with a COMMIT forms a single transaction.

D.A combination of DDL and DML statements executed in a sequence ending with a COMMIT forms a single transaction.

Question 14

Which three statements are true about views in an Oracle Database?

A.A SELECT statement cannot contain a WHERE clause when querying a view containing a WHERE clause in its defining query.

B.Views have no segment.

C.Rows inserted into a table using a view are retained in the table if the view is dropped.

D.A view can be created that refers to a non-existent table in its defining query.

E.Views can join tables only if they belong to the same schema.

F.Views have no object number.

Question 15

Which three statements are true regarding subqueries? (Choose three.)

A.Multiple columns or expressions can be compared between the main query and subquery.

B.Subqueries can contain ORDER BY but not the GROUP BY clause.

C.Main query and subquery can get data from different tables.

D.Subqueries can contain GROUP BY and ORDER BY clauses.

E.Main query and subquery must get data from the same tables.

F.Only one column or expression can be compared between the main query and subquery.

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Question 11

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