Database Management System Practice Test 41
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Conceptual Data Models Questions and Answers PDF Download: MCQ 41
In the commercial database management system, the relational database model is also known as
- implementation data model
- attribution data model
- sequential data model
- functional data model
In Standard Query Language, the data types included are
- character string
- bit-string
- time stamp
- all of above
The characteristic of database management system which allows the program operation independence and program data independence is classified as
- conceptual abstraction
- implementation abstraction
- data abstraction
- interface abstraction
In the modeling of union type classes, the total category of super class is represented by
- triple line
- double line
- single line
- inverted comma
The variable in DBMS used to communicate error conditions between database management system and program are
- SQLCODE
- SQLSECTION
- SQLSTATE
- both b and c
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- In a particular time, data available in database at specific moment is called
- Module of DBMS which focuses on eliminating redundancies, operations reordering and rearrangements is classified as
- Problem arises because of incompatibility between data structures of programming language and database management structures is called
- Command in SQL which is used when any of schema is no longer needed in relation is classified as
- Category which considers union of super class entities is called
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