Database Systems Practice Test 279

Storage and File Structure Quiz PDF: Questions and Answers - 279

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Storage and File Structure Questions and Answers PDF Download: Quiz 279

MCQ 1391: Recovering schemes manages transactions aborts by maintaining a/an

A) Log

B) Process

C) File directory

D) Command

MCQ 1392: The SQL statements are identified at compile time using a preprocessor, under the

A) Dynamic SQL

B) Embedded SQL

C) Absolute SQL

D) Inbuilt SQL

MCQ 1393: The term that provides commands for defining relation schemas, deleting relations, and modifying relation schemas, known as

A) SQL DDL

B) SQL DML

C) View definition

D) Embedded SQL

MCQ 1394: Tuples with the same value on all attributes in the group by clause are placed in

A) One group

B) Two groups

C) Multiple groups

D) No groups

MCQ 1395: The rate calculated at which data can be retrieved from or stored to the disk, is known as

A) Data-transfer rate

B) Data-connection rate

C) Data-access rate

D) Data-response rate

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