Database Management System Practice Test 47

State Chart Diagrams Quiz PDF: Questions and Answers - 47

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State Chart Diagrams Questions and Answers PDF Download: Quiz 47

MCQ 231: The relationship between two independent data tables is classified as

A) structural relationships

B) non-structural relationships

C) identifying relationships

D) non-identifying relationships

MCQ 232: The command in SQL which is used when any of the schema is no longer needed in relation is classified as

A) DROP SCHEMA command

B) PICK SCHEMA command

C) DELETE SCHEMA command

D) RESTRICT SCHEMA command

MCQ 233: If the current number of records are 92, blocking factor is 20 and the number of file buckets are 5 then the file load factor is

A) 0.85

B) 0.92

C) 0.35

D) 0.46

MCQ 234: If the common attributes of two relations are classified as join attributes then the OUTER UNION must be equal to

A) LEFT OUTER JOIN

B) FULL OUTER JOIN

C) HALF OUTER JOIN

D) DOWNWARD JOIN

MCQ 235: The property of DBMS which ensures the execution of all the operations in transaction or none of the operation is executed is classified as

A) isolation property

B) atomicity property

C) online execution property

D) offline execution property

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