Identification Flashcards
Consistent of raw fact
Data
Data access changes when data storage characteristic change.
Data dependence
A type of hierarchical database that allows child record to be associated with multiple parent record
Network databases
This database follows the progression of data being categorized in rank or level.
Hierarchical database
These are the data about data.
Metadata
These are the information for the end user.
End user data
Data storage characteristics are changed without affecting the program’s ability to access the data
Data independence
Problems that happen when deleting data
Deletion anomaly
Problems that arise when trying to add new data.
Insertion anomaly
In todays world data is ubiquitous.ubiquitous means:
Existing everywhere
Anomalies occur in databases.Anomaly means
Problem
Database schemas have constraints. Constraints means:
Restriction
Data is also pervasive. Pervasive means:
Noticeable
Some databases follow a hierarchy.Hierarchy means
Ranking
Data model attributes are represented as
Columns
