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Free 70-762: Developing SQL Databases Exam Questions and Answers
Last updated: February 18, 2025
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1601-70-762: Developing SQL Databases
#Question
What does the term "blocking" refer to in SQL Server?
A.
Restarting transactions
B.
Stopping user sessions
C.
Preventing access to a resource
D.
Grabbing locks before reading data
Correct Answer:
C
Blocking occurs when one transaction holds a lock on a resource that another transaction needs, preventing it from proceeding.
#Question
What command will show you the definition of a stored procedure?
A.
SHOW PROCEDURE
B.
EXEC sp_stored_procedure
C.
SHOW PROCEDURE DEFINITION
D.
EXEC sp_helptext
Correct Answer:
D
The command EXEC sp_helptext will display the definition of a stored procedure in SQL Server.
#Question
When would you use a CROSS JOIN?
A.
To combine related rows across multiple tables
B.
When you want to filter results
C.
To return a Cartesian product
D.
To find matching rows
Correct Answer:
C
A CROSS JOIN returns all possible combinations of rows from each table, resulting in a Cartesian product of the datasets.
#Question
What is a potential benefit of using stored procedures?
A.
Enhanced security
B.
Simplified access controls
C.
Reduced redundancy
D.
Increased data volume
Correct Answer:
A
Stored procedures can improve security by allowing users to run predefined commands without giving them direct access to the underlying tables.
#Question
What happens when you execute the command TRUNCATE TABLE?
A.
Deletes all rows while maintaining table structure
B.
Removes primary keys only
C.
Deletes specific rows
D.
Deletes the table structure
Correct Answer:
A
TRUNCATE TABLE deletes all records from the table while keeping the structure for future use.
#Question
What command can be utilized to set a default value for a column?
A.
ALTER TABLE SET DEFAULT
B.
ALTER TABLE table_name ADD CONSTRAINT Default
C.
ALTER COLUMN SET DEFAULT
D.
DEFAULT
Correct Answer:
B
To set a default value for a column, you would use the ALTER TABLE command along with ADD CONSTRAINT to specify the default.
#Question
What SQL command is used to create a new view?
A.
ADD VIEW
B.
NEW VIEW
C.
INSERT VIEW
D.
CREATE VIEW
Correct Answer:
D
The CREATE VIEW command is used to create a new view in SQL Server based on a SELECT statement.
1601-70-762: Developing SQL Databases
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