What are Integrity Constraints? Integrity constraints are rules enforced on database columns to ensure that the data remains accurate, valid, and consistent.They protect the database from corrupt or invalid data…

AspectPrimary KeyForeign KeyDefinitionUniquely identifies each record in a table.Creates a relationship between two tables.UniquenessMust be unique for each record.Can have duplicate values.NULL ValuesNULLs are NOT allowed.NULLs are allowed (if no…

A Foreign Key is a very important concept in relational databases. It is used to create a relationship between two tables. What is a Foreign Key? A Foreign Key is…

A Primary Key is a fundamental concept in relational database management systems (RDBMS). It is used to uniquely identify each record (or row) in a database table. What is a…

Primary Key and Foreign Key Primary Key: It is a unique value that is used to identify a row in a table. If you are thinking about unique constant, then…

What is Data Model in DBMS? || Data Model in DBMS with example

Data Manupulation Language (DML) || Data Defination Language (DDL) || Integrity Constrants || Part - 2

DBMS (Database Management System) Part-1 Database is such as a collection of structured data such as records, fields ete. The management of data involves defining the structures for storage of…