Question 1

Examine these statement which execute successfully: 1z0-909-page46-image32 Now, examine this desired output: 1z0-909-page46-image31 Which two queries will produce the out?

Options :

A :

B :

C :

D :

E :

Answer: B,C

Question 2

Examine these commands which execute successfully in the sequence shown in Sessions S1 and S2: 1z0-909-page46-image17 Now, examine this statement that execute successfully in s1:S1> SELECT * FROM emp;Which is true about the result of the select statement?

Options :

A : The inserted row is returned because the transaction is auto committed in S2.

B : The inserted row is not returned because the isolation level is READ COMMITTED in S2.

C : The inserted row is not returned because the transaction still active in s2.

D : The inserted row is returned because the isolation level is RPEATABLE READ in S1.

Answer: C

Question 3

Examine this statement which has executed successfully: 1z0-909-page46-image80

Options :

A : Execution performance can be improved by using like instead of RLIKE.

B : The statement takes advantage of index description_idx.

C : Execution performance can be improved by, using a composite index with column description as the leftmost prefix column description.

D : No index will improve statement performance.

E : Execution performance can be improved by adding an index on column description.

Answer: A

Question 4

Examine the output: 1z0-909-page46-image94 Which explain command will obtain the output?

Options :

A : EXPLAIN ANALYZE

B : EXPLAIN PARTITIONS

C : EXPLAIN FORMAT=TREE

D : EXPLAIN PORMAT^TRADITIONAL

E : EXPLAIN PORMAT=JSON

Answer: A

Question 5

Examine this statement:DECLARE not_found CONDITION FOR SQLSTATE '02000';In which two statements can not found be used?

Options :

A : in a leave statement to exit a loop

B : in an if statement

C : in a while loop

D : in a handler declaration

E : in a signal statement

Answer: A,C

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