Matching
Identify the letters of the choices that best match the phrases or definitions.
-Defines only those portions of the database that a particular system or user needs or is allowed to access
A)Unified Modeling Language (UML)
B)Cardinality
C)Foreign key
D)Data mining
E)Referential integrity
F)Subschema
G)Extended Binary Coded Decimal Interchange Code (EBCDIC)
H)Entity
I)Logical record
J)Logical storage

Question

Matching
​Identify the letters of the choices that best match the phrases or definitions.
-Defines only those portions of the database that a particular system or user needs or is allowed to access
A)​Unified Modeling Language (UML)
B)​Cardinality
C)​Foreign key
D)​Data mining
E)​​Referential integrity
F)Subschema
G)​Extended Binary Coded Decimal Interchange Code (EBCDIC)
H)Entity
I)Logical record
J)Logical storage

Quizplus · Accepted Answer

Subschema defines only those portions of the database that a particular system or user needs or is allowed to access.

Answer: E 
 Referential integrity is a constraint that ensures that relationships between tables remain consistent by preventing actions that would destroy these relationships.

Answer: G 
 EBCDIC is a character encoding used mainly on IBM mainframe and IBM midrange computer operating systems.

Answer: H 
 Entity is a person, place, thing, or event that is of interest to an organization and that must be captured and stored in a database.

Answer: I 
 Logical record is a set of related fields that are treated as a unit of data in a database.

Answer: J 
 Logical storage is the conceptual representation of how data is stored in the database, independent of the physical storage mechanisms used.

Matching ​Identify the Letters of the Choices That Best Match the the Phrases

Matching Identify the Letters of the Choices That Best Match the the Phrases