What do you mean by entity types and entity sets?
What do you mean by entity types and entity sets?Ans.An entity type defines a collection (or set) of entities that have the same...
make comparison between the strong entity and weak entity.
make comparison between the strong entity and weak entity.OrHow strong and weak entity sets represented in E-R diagram? Explain with example.OrWhen is the concept...
define the term domain constraints in DBMS
Define the term domain constraints.Ans.Domain constraints are the most elementary form of integrity constraint. They are tested easily by the system whenever a new...
Discuss the different types of user-friendly interfaces in DBMS
Discuss the different types of user-friendly interfaces.Ans. User-friendly interfaces provided by a DBMS may include the following-(i) Menu-based Interfaces for Browsing -These interfaces...
Discuss main categories of data models in dbms| types of data models.
Explain the various data models briefly with a example.One data model can be distinguished from other on the basis of the way relationship among...
what are data models in dbms|what are its types?
Data ModelsA model is an abstraction process that hides superfluous details while highlighting details pertinent to the applications at hand. Data model is a...
what u mean by Mapping cardinalities, participation constraints, attribute inheritance.
(1) Mapping Cardinalities:- Mapping cardinalities can be defined as the number of entities to which another entity is associated via relationship set. Binary relationship...
How is the databased approach different from the file based approach?
How is the databased approach different from the file based approach?OrExplain the difference between a file oriented system and a database oriented system.Or...
entity relationship model in DBMS
entity relationship model in DBMSINTRODUCTIONThe requirements statement is the first input that is given to the System Analyst for building the intended system for...
information and knowledge management(types of information systems)
Differentiate the term data, information, and knowledge management.Data is a collection of raw facts and figures. Whereas information is the result of data processing...
