Online Access Free Oracle.1z0-071.v2022-02-07.q334 Practice Test (Page 58)

1z0-071 Exam Question 281

What is true about non-equijoin statement performance?

A.The BETWEEN condition always performs less well than using the >= and <= conditions.

B.The join syntax used makes no difference to performance.

C.Table aliases can improve performance.

D.The BETWEEN condition always performs better than using the >= and <= conditions.

E.The Oracle join syntax performs better than the SQL:1999 compliant ANSI join syntax.

1z0-071 Exam Question 282

Which two are true about unused columns?

A.A primary key column cannot be set to unused.

B.Unused columns retain their data until they are dropped

C.A query can return data from unused columns, but no DML is possible on those columns.

D.A foreign key column cannot be set to unused.

E.The DESCRIBE command displays unused columns

F.Once a column has been set to unused, a new column with the same name can be added to the table.

1z0-071 Exam Question 283

Which three statements are true about multiple row subqueries? (Choose three.)

A.They can contain HAVINGclauses.

B.They cannot contain a subquery.

C.They can return multiple columns.

D.They can contain GROUP BY clauses.

E.Two or more values are always returned from the subquery.

1z0-071 Exam Question 284

View the exhibit and examine the data in the PROJ_TASK_DETAILS table. (Choose the best answer.)

The PROJ_TASK_DETAILS table stores information about project tasks and the relation between them.
The BASED_ON column indicates dependencies between tasks.
Some tasks do not depend on the completion of other tasks.
You must generate a report listing all task IDs, the task ID of any task upon which it depends and the name of the employee in charge of the task upon which it depends.
Which query would give the required result?

A.SELECT p.task_id, p.based_on, d.task_in_charge
FROM proj_task_details p JOIN proj_task_details d
ON (p.task_id = d.task_id);

B.SELECT p.task_id, p.based_on, d.task_in_charge
FROM proj_task_details p LEFT OUTER JOIN proj_task_details d
ON (p.based_on = d.task_id);

C.SELECT p.task_id, p.based_on, d.task_in_charge
FROM proj_task_details p JOIN proj_task_details d
ON (p.based_on = d.task_id);

D.SELECT p.task_id, p.based_on, d.task_in_charge
FROM proj_task_details p FULL OUTER JOIN proj_task_details d
ON (p.based_on = d.task_id);

1z0-071 Exam Question 285

View the Exhibit and examine the data in the PRODUCTS table.

You must display product names from the PRODUCTS table that belong to the 'Software/other' category with minimum prices as either $2000 or $4000 and with no unit of measure.
You issue this query:

Which statement is true?

A.It generates an error because the condition specified for the PROD_CATEGORY column is not valid.

B.It executes successfully but returns no result.

C.It executes successfully and returns the required result.

D.It generates an error because the condition specified for PROD_UNIT_OF_MEASURE is not valid.

Other Version: 1284Oracle.1z0-071.v2025-09-16.q232; 769Oracle.1z0-071.v2025-01-23.q137; 615Oracle.1z0-071.v2024-09-26.q131; 1087Oracle.1z0-071.v2024-08-26.q188; 52Oracle.Passtestking.1z0-071.v2022-05-07.by.adela.334q.pdf; 4293Oracle.1z0-071.v2021-11-28.q233; 46Oracle.Prepawaypdf.1z0-071.v2021-07-28.by.hugo.324q.pdf

Latest Upload: 108Peoplecert.ITIL-4-Practitioner-Release-Management.v2025-12-20.q10; 110Oracle.1z0-1073-25.v2025-12-20.q45; 132TheOpenGroup.OGEA-101.v2025-12-19.q54; 138CWNP.CWAP-405.v2025-12-19.q58; 117Salesforce.Analytics-Admn-201.v2025-12-19.q25; 142Salesforce.Analytics-DA-201.v2025-12-18.q77; 163Google.Associate-Cloud-Engineer.v2025-12-18.q130; 179Microsoft.SC-200.v2025-12-18.q155; 154IFPUG.I40-420.v2025-12-18.q105; 135NMLS.MLO.v2025-12-17.q109

1z0-071 Exam Question 281

1z0-071 Exam Question 282

1z0-071 Exam Question 283

1z0-071 Exam Question 284

1z0-071 Exam Question 285

Download PDF File