Database Management System Practice Test 96

Relational Database Management System Multiple Choice Questions (MCQ) PDF - 96

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Relational Database Management System Questions and Answers PDF Download: Quiz 96

MCQ 476: In relational databases, the key which are considered as type of reference attribute is classified as

A) foreign keys

B) composite keys

C) string keys

D) floating keys

MCQ 477: If the high level data manipulation language is used in standalone interface manner then this language is considered as

A) host language

B) sublanguage

C) query language

D) scheming language

MCQ 478: The SELECT operation is performed on

A) tuples of relation

B) attribute of table

C) entity of DBMS

D) columns of table

MCQ 479: The type of relationship in which the child table would not exist without its parent table is classified as

A) identifying relationships

B) non-identifying relationships

C) structural relationships

D) non-structural relationships

MCQ 480: In varying length character string CHAR(n), the 'n' represents

A) number of rows

B) number of columns

C) number of characters

D) maximum number of characters

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