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Database Systems Practice Test 437

Modification of Database Quiz Questions and Answers PDF - 437

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Modification of Database Questions and Answers PDF Download: Quiz 437

MCQ 2181: We can delete only

A) Whole tuples
B) Attributes
C) Instances
D) Multiple attributes

MCQ 2182: To ensure serializability, the concurrency-control schemes operates in way(s) of

A) Delaying an operation
B) Aborting the transaction
C) Both A and B
D) Committing an operation

MCQ 2183: The actual protocol used to exchange information with the database, is not defined by the

A) Protocol
B) Connection
C) Driver
D) Standard

MCQ 2184: The conceptual framework specifies the

A) Structure
B) Systematic fashion
C) Models
D) Tools

MCQ 2185: Virtual Private Database (VPD) provides authorization at the level of

A) Rows
B) Tuples
C) Relations
D) All of the above

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