1.1. Define the following terms: data, database, DBMS, database system, database
catalog, program-data independence, user view, DBA, end user, canned
... [Show More] transaction,
deductive database system, persistent object, meta-data, and transaction-processing
application.
o Data: Data is a relative entity or object. Ex-name, age, class..
o Database: A Database is a collection of related data with an implicit meaning.
o DBMS: A database management system is a software system that helps users to create
and maintains a database. This system contains the processes of defining, constructing,
manipulating and sharing databases from various users and applications.
o Database System: Data base system is nothing but database and DBMS software
together we call as data base system.
o Database catalog: Database catalog contains information such as the structure of each
file, the type and storage format of each data item and various constraints on the data.
o Program-data independence: The structure of data files is stored in the DBMS catalog
separately from the access programs is known as program – data independence.
o User view: It is the view that may be a subset of the database or it contains virtual data
is derived from the database files but is not explicitly stored.
o DBA: Database Administrator is an administrator who is responsible for authorizing
access to the database. DBA manages and coordinates the resources and acquires
software and hardware resources.
o End-user: An end user is a person whose job requires access to the database for
querying, updating and generating the reports.
o Canned transaction: The main aim of canned transaction is using standard types of
queries and updates for querying and updating database.
o Deductive database systems: This type of database systems provides capability for
defining deduction rules for new information from the stored database.
o Persistent object: Persistent means object is stored permanently in an object –oriented
DBMS and it survives to terminate the program execution and then retrieved directly by
another program.
o Meta-data: It is information about structure of each file, type and storage format of
each data and various constraints on the data is called meta-data.
o Transaction-processing application: This application is designed to maintain database
integrity in a known, consistent state. [Show Less]