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D427 PZLO Pre-assessment Multiple Choice Exam 2024/2025 Questions With Completed Solutions.
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D427 PZLO Pre-assessment Multiple Choice Exam 2024/2025 Questions With Completed Solutions.
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D427 PZLO Pre-assessment MultipleChoice Questions
San Francisco, CA 94110
USA
How many attributes are present in the address fragment?
1
2
3
4 - ANS 4
The Package table has the following columns:
*Weight-decimal
*Description-optional variable length string
*LastChangedDate-date
*TrackingNumber-integer
Which column should be designated the primary key for the Package table?
Weight
Description
LastChangedDate
TrackingNumber - ANS TrackingNumber
Which data type will store "2022-01-10 14:22:12" as a temporal value without loss of
information?
O DATE
O DATETIME
O DECIMAL
O BIGINT - ANS DATETIME
Which SQL command is an example of data definition language (DDL)?
O UPDATE
O ALTER
O SELECT
, O DELETE - ANS ALTER
How would a database engine process an update that violates a RESTRICT referential
integrity constraint?
* The offending value would be set to the database default.
* The update would be rejected by the database.
* The offending value would be changed to NULL.
* The updated value would flow to the primary key. - ANS * The update would be
rejected by the database.
Which restriction applies when using a materialized view?
* The users of the view must provide search terms.
* The underlying data must be periodically refreshed.
* The tables referenced in the view must be indexed.
* The rows in the table must be compressed. - ANS * The underlying data must be
periodically refreshed.
Which query illustrates performing an outer join of the Movie table with a different table?
A - SELECT M. Title, A.Actor FROM Movie M, Actor A
WHERE M.ActorID = A.ID
B - SELECT M.Title, A.Actor FROM Movie M
LEFT JOIN Movie MB ON M.ID = MB.ID, Actor A
C -SELECT M. Title, A.Actor FROM Movie M
RIGHT JOIN Actor A ON M.ActorID = A.ID
D - SELECT M. Title, A.Actor FROM Movie M
INNER JOIN Actor A ON M. ActorID = A.ID - ANS SELECT M. Title, A.Actor FROM
Movie M
RIGHT JOIN Actor A ON M.ActorID = A.ID
Assume there are two tables, A and B.
Which rows will always be included in the result set if Table A is inner joined with Table
B?
*Only rows in Tables A and B that share the join condition
* All rows in Table B
*All rows in Table A
* Only rows in Tables A and B that do not share the join condition - ANS Only rows in
Tables A and B that share the join condition
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