1Z0-050 Questions and Answers

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Oracle Database New Features for Administrators: 1Z0-050

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Vendor: Oracle

Certifications: Oracle Database Application Development

Exam Name: Oracle Database New Features for Administrators

Exam Code: 1Z0-050

Total Questions: 183 Q&As

Last Updated: Dec 13, 2021

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1Z0-050 Online Practice Questions and Answers

Questions 1

You need to create a partitioned table to store historical data and you Issued the following command:

CREATE TABLE purchas_interval

PARTITION BY RANGE (time_id)

INTERVAL (NUMTOYMINTERVAL(1 ,'month1)) STORE IN (tbs1 ,tbs2,tbs3)

PARTITION p1 VALUES LESS THAN(TO_DATE('1-1-2005I, 'dd-mm-yyyy')), PARTITION p2 VALUES LESS THAN(TO_DATE('1-1-2007', 'dd-mm-yyyy'))) AS

SELECT *

FROM purchases

WHERE time_id < TO_DATE('1-1-2007'l'dd-mm-yyyy');

What is the outcome of the above command?

A. It returns an error because the range partitions P1 and P2 should be of the same range.

B. It creates two range partitions (P1, P2). Within each range partition, it creates monthwise subpartitions.

C. It creates two range partitions of varying range. For data beyond '1-1-2007,' it creates partitions with a width of |_| one month each

D. It returns an error because the number of tablespaces (TBS1 ,TBS2,TBS3)specified does not match the number of range partitions (P1 ,P2) specified.

Show Answer
Questions 2

You perform the following activities during the database upgrade from Oracle Database 10g to Oracle Database 11 g:

1.

Capture plans for a SQL workload into a SQL Tuning Set (STS) before upgrade.

2.

Load these plans from the STS into the SQL plan baseline immediately after the upgrade.

What is the reason for performing these activities?

A. to minimize plan regression due to the use of a new optimizer version

B. to completely avoid the use of new plans generated by a new optimizer version

C. to prevent plan capturing when the SQL statement is executed after the database upgrade

D. to keep the plan in the plan history so that it can be used when the older version of the optimizer is used

Show Answer
Questions 3

Evaluate the following function code:

CREATE FUNCTION get_dept_avg(dept_id NUMBER)

RETURN NUMBER

RESULT_CACHE RELIES_ON (EMPLOYEES)

IS

avgsal NUMBER(6);

BEGIN

SELECT AVG(SAU\RY)INTO avgsal

FROM EMPLOYEES

WHERE DEPARTMENTJD = dept_id;

RETURN avgsal;

END get_dept_avg;

Which statement is true regarding the above function?

A. The cached result becomes invalid when any structural change is done to the EMPLOYEES table.

B. If the function execution results in an unhandled exception, the exception result is also stored in the cache.

C. Each time the function is invoked in a different session, the current result in the result cache gets overwritten.

D. If the function is invoked with a different parameter value, the existing result in the result cache gets overwritten by the latest value.

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