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San Francisco, CA 94110
USA
How many attributes are present in the address fragment?
-1
-2
-3
-4
4
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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
Tracking Number
Which data type will store "2022-01-10 14:22:12" as a temporal value without loss of information?
- DATE
- DATETIME
- DECIMAL
- BIGINT
DATETIME
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Which SQL command is an example of data definition language (DDL)?
- UPDATE
- ALTER
- SELECT
- DELETE
CREATE, ALTER, OR DROP
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.
The update would be rejected by the database.
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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.
The underlying data must be periodically refreshed.
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