Data Integrity Data Integrity: Data integrity refers to the correctness and consistency of data. It is another form of database protection or security, security involves protecting the data from unauthorized…

Cardinality In E-R Diagram Cardinality In ER Diagram: In a relational database model, the number of records in a table or relation is called cardinality in the E-R Model of…

Relationship in Database Relationship In Database: A relationship is an association between the instances of one or more entity types in the database which represents some information. For example, a…

Elements Of ER Model Elements Of ER Model: We know that E-R model describes the data as entities, attributes and relationship between entities. So the major elements of E-R model…

Entity Relationship Model Entity Relationship Model: The Entity-Relationship Model (or E-R Model) is a popular high conceptual data model. Peter Chen introduced this model in 1976 and is widely used…

Database Administrator Database Administrator: The database administrator (DBA) plays an important role in DBMS environment. In a database management system, the primary resource is the database itself and the secondary…

Database Development Process Database Development Process: The database is the fundamental component of the information system of an organization and any organization is blind without the data. In computerized environment,…

Data Model In Database Data Model in Database: A representation of a real universal process, device or concept is known as Data Model. A data model (or database model) is…

Database Language Database language is an important part of DBMS. It is used to access the required data from a database, to modify the data of database and to design…