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Oracle Database SQL exam is a multiple-choice exam consisting of 73 questions that must be completed within 100 minutes. 1z0-071 exam is available in English and Japanese languages. 1z0-071 exam covers a wide range of topics, including data manipulation, database design, database objects, and more. 1z0-071 exam is designed to test your knowledge of SQL and your ability to apply it to real-world scenarios.

Oracle 1z1-071 exam is an essential certification for IT professionals seeking to validate their expertise in SQL database management using Oracle technologies. Oracle Database SQL certification provides many opportunities for career advancement and can lead to highly rewarding job positions in the IT industry. Therefore, individuals who want to enhance their knowledge and skills in Oracle Database SQL should consider taking 1z0-071 Exam to validate their proficiency in the field.

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Oracle 1z0-071 Certification Exam tests the candidate's understanding of SQL language essentials, including data retrieval, data manipulation, and data control. Candidates are expected to have a strong foundation in SQL programming, including knowledge of SQL syntax, data types, and functions. They must also be proficient in creating and managing database objects such as tables, views, indexes, and constraints.

Oracle Database SQL Sample Questions (Q155-Q160):

NEW QUESTION # 155
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.based_on = 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.task_id = 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);

Answer: B

Explanation:
Explanation/Reference:

NEW QUESTION # 156
Examine the description of the EMPLOYEES table:

Examine this query:

Which line produces an error?

A. Line 8
B. Line 5
C. Line 3
D. Line 7

Answer: C

NEW QUESTION # 157
Which two statements are true about the ORDER BY clause?

A. Ina character sort, the values are case-sensitive.
B. Column aliases can be used In the ORDER BY cause.
C. Numeric values are displayed in descending order if they have decimal positions.
D. Only columns that are specified in the SELECT list can be used in the ORDER BY cause.
E. NULLS are not included in the sort operation.

Answer: A,B

Explanation:
The ORDER BY clause in Oracle SQL is used to sort the result set of a query by one or more columns, and it comes with its own set of rules and behaviors:
* D. Column aliases can be used In the ORDER BY clause: True, column aliases that are specified in the SELECT clause can be used in the ORDER BY clause to refer to the columns to sort the results by.
* E. In a character sort, the values are case-sensitive: Oracle sorts results in case-sensitive order by default when using the ORDER BY clause with character columns, unless otherwise specified by the NLS_SORT parameter.
References:
* Oracle Database SQL Language Reference 12c, which provides details on sorting query results using ORDER BY.

NEW QUESTION # 158
SCOTT is a user in the database.
Evaluate the commands issued by the DBA:

Which statement is true regarding the execution of the above commands?

A. Statement 1 would not execute because the WITH GRANT option is missing.
B. Statement 3 would not execute because role and system privileges cannot be granted together in a single GRANT statement.
C. Statement 1 would not execute because the IDENTIFIED BY <password> clause is missing.
D. Statement 2 would not execute because system privileges and object privileges cannot be granted together in a single GRANT command.

Answer: D

NEW QUESTION # 159
Which statement will return the last sequence number generated by the EMP_ SEQ sequence?

A. SELECT CURRVAL FROM emp_ seq;
B. SELECT NEXTVAL FROM emp_ seq;
C. SELECT emp_ seq. CURRVAL FROM DUAL;
D. SELECT emp_ seq . NEXTVAL FROM DUAL;

Answer: D

NEW QUESTION # 160
......

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Oracle Database SQL Sample Questions (Q155-Q160):

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