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Oracle 1z1-071 (Oracle Database SQL) is a certification exam designed for individuals who are interested in pursuing a career in database management. 1z0-071 exam is intended to evaluate the candidate's knowledge of SQL and database concepts. Passing 1z0-071 Exam validates the candidate's proficiency in SQL and their ability to work with Oracle Database.

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Oracle Database SQL Sample Questions (Q207-Q212):

NEW QUESTION # 207
In which three situations does a transaction complete?

A. when a TRUNCATE statement is executed after the pending transaction
B. when a PL/SQL anonymous block is executed
C. when a ROLLBACK command is executed
D. when a DELETE statement is executed
E. when a data definition language (DDL) statement is executed

Answer: A,C,E

Explanation:
References:
https://docs.oracle.com/cd/B19306_01/server.102/b14220/transact.htm

NEW QUESTION # 208
Examine this SQL statement:

Which two are true?

A. The subquery is not a correlated subquery.
B. The subquery is executed for every updated row in the ORDERS table.
C. The UPDATE statement executes successfully even if the subquery selects multiple rows.
D. All existing rows in the ORDERS table are updated.
E. The subquery is executed before the UPDATE statement is executed.

Answer: B,C

NEW QUESTION # 209
View the exhibit and examine the descriptions of the DEPTand LOCATIONStables.

You want to update the CITYcolumn of the DEPTtable for all the rows with the corresponding value in the CITYcolumn of the LOCATIONStable for each department.
Which SQL statement would you execute to accomplish the task?

A. UPDATE dept d
SET city = ANY (SELECT city
FROM locations l)
B. UPDATE dept d
SET city = ALL (SELECT city
FROM locations l
WHERE d.location_id = l.location_id);
C. UPDATE dept d
SET city = (SELECT city
FROM locations l
WHERE d.location_id = l.location_id);
D. UPDATE dept d
SET city = (SELECT city
FROM locations l)
WHERE d.location_id = l.location_id;

Answer: C

NEW QUESTION # 210
Which three statements are true about time zones, date data types, and timestamp data types in an Oracle database?

A. The DBTIMEZONE function can return an offset from Universal Coordinated Time (UTC)
B. A TIMESTAMP data type column contains information about year, month, and day
C. A TIMESTAMP WITH LOCAL TIMEZONE data type column is stored in the database using the time zone of the session that inserted the row
D. The CURRENT_TIMESTAMP function returns data without time zone information
E. The SESSIONTIMEZONE function can return an offset from Universal Coordinated Time (UTC)

Answer: A,C,E

Explanation:
A: True. The DBTIMEZONE function returns the database's time zone offset from UTC (Coordinated Universal Time). In Oracle 12c, DBTIMEZONE can return the time zone of the database in terms of a region name or as a numeric offset from UTC. This is stated in the Oracle documentation for managing time zones.
B: True. TIMESTAMP WITH LOCAL TIME ZONE is a data type that adjusts the data stored in the database to the time zone of the session that is querying or inserting the data. When data is stored, Oracle converts it from the session time zone to UTC, and upon retrieval, it converts it back to the session time zone. This is a feature designed to allow the same data to be viewed in different time zones automatically, making it highly useful in global applications.
D: True. SESSIONTIMEZONE function returns the time zone offset of the current session from UTC. This is useful for understanding and managing data conversions in applications that are used across different time zones. The time zone can be displayed as an offset from UTC or as a named region depending on the environment settings.

NEW QUESTION # 211
Which two statements are true about views?

A. The wITH CHECK clause prevents certain rows from being displayed when querying the view.
B. Views can be updated without the need to re-grant privileges on the view.
C. Tables in the defining query of a view must always exist in order to create the view.
D. Views can be indexed.
E. Theethi CHEcK clause prevents certalin rows from being updated or inserted in the underying table through the view.

Answer: B,E

NEW QUESTION # 212
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