Database Management System MCQs – Mock Test 96

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The MCQ: In relational databases, the key which are considered as type of reference attribute is classified as; "Database Management System MCQs" App (Free Android & iOS) with answers: composite keys, foreign keys, floating keys, and string keys for bachelor's degree in computer science. Practice Data Modeling Entity Relationship Model Questions and Answers, Google e-Book to download free chapter for computer and information science.

Relational Database Management System MCQ – Mock Test 96 PDF Download

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

foreign keys
composite keys
string keys
floating keys

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

host language
sublanguage
query language
scheming language

MCQ 478: The SELECT operation is performed on:

tuples of relation
attribute of table
entity of DBMS
columns of table

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

identifying relationships
non-identifying relationships
structural relationships
non-structural relationships

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

number of rows
number of columns
number of characters
maximum number of characters

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