(A) replace relational design
(B) be close to a users perception of the data
(C) enable low level descriptions of data
(D) enable detailed descriptions of data query processing
Tag: DBMS Mcq
The main software package that supports a database management approach is called?
(A) Data Dictionary
(B) Report Generator
(C) Database Management System
(D) Distributed database
Which model operates at the lowest level of abstraction?
(A) conceptual
(B) internal
(C) external
(D) physical
A Foreign Key is?
(A) A field in a table that matches a key field in another table
(B) A field in a table that contains data that is also contained elsewhere in another table
(C) A field in a table that has the same name as a key field in another table
(D) A field in a table that has the same name as a key field in another table
Which one of the following is NOT a characteristic of meta data?
(A) Data about data
(B) Describes a data dictionary
(C) Self-describing
(D) Includes user data
A table can be logically connected to another table by defining a __.
(A) hyperlink
(B) common attribute
(C) primary key
(D) superkey
An instance is?
(A) a particular occurance of an entity
(B) a special type of relation
(C) an attribute of an entity
(D) any particular entity
User rights information is stored in?
(A) Physical database
(B) Catalog
(C) Logical database
(D) Buffer