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Free 1z0-497: Oracle Database 12c Essentials Exam Questions and Answers
Last updated: January 14, 2025
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311-1z0-497: Oracle Database 12c Essentials
#Question
What is the benefit of using SQL*Loader?
A.Manage Roles
B.Data Migration
C.View Data
D.Create Objects
Correct Answer:
B
SQL*Loader is primarily used for loading high volumes of data from flat files into Oracle databases.
#Question
What is a database link in Oracle?
A.A synonym reference
B.A materialized view
C.A stored procedure
D.A connection to another database
Correct Answer:
D
A database link allows for access to objects in another Oracle database.
#Question
What does the term "cursor" refer to in PL/SQL?
A.An SQL function
B.A temporary table
C.A data structure
D.A pointer to a row
Correct Answer:
D
A cursor is a pointer to a specific row within the result set of a SQL query.
#Question
What is the use of the V$ views in Oracle?
A.To create reports
B.To monitor system performance
C.To store data
D.For user permissions
Correct Answer:
B
V$ views provide dynamic performance information about the database.
#Question
Which SQL statement allows you to view the contents of a table?
A.SELECT
B.GET
C.VIEW
D.DISPLAY
Correct Answer:
A
The SELECT statement is used to retrieve and display data from a table.
#Question
In Oracle, what is an outer join?
A.A join that returns matched rows only
B.A join that returns all rows from one or both tables
C.A join that alters data
D.A join that combines data
Correct Answer:
B
An outer join returns all rows from one table and matched rows from another table.
#Question
How can schema objects be shared across different applications in Oracle?
A.Through public synonyms
B.Through roles
C.By using package bodies
D.By creating database links
Correct Answer:
A
Public synonyms allow access to single object names across different schemas or applications.
311-1z0-497: Oracle Database 12c Essentials
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