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What is relation instance in DBMS?

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∙ 12y ago

Updated: 4/26/2024

relationship instance is an association of entity instances

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∙ 12y ago

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In DBMS, a relation instance refers to a particular set of data rows within a database table at a given point in time. It represents the actual values stored in the database for that specific table. Each row in a relation instance corresponds to a record or tuple within the table, containing values for each attribute.

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Continue Learning about Information Science

What is instances in dbms?

In a database management system (DBMS), an instance refers to a single, specific copy of the database software running on a particular system at a given time. Each instance has its own memory allocation, storage resources, and configuration settings. Multiple instances of a DBMS can coexist on the same physical server, each serving different applications or users.

What are three types of dbms?

Hierarchical DBMSNetwork DBMSRelational DBMS

Dbms and rdbms?

A DBMS (Database Management System) is a software application that allows users to interact with a database. An RDBMS (Relational Database Management System) is a type of DBMS that organizes data into tables with rows and columns, and uses structured query language (SQL) for querying and managing data. RDBMSs are a subset of DBMSs, designed specifically for relational databases.

What is extension and intension in dbms?

In database management systems, extension refers to the actual data values stored in a table, while intension refers to the structure of the database, including its schema, constraints, and relationships between tables. Extension represents the instances of the database elements, while intension represents the definition or blueprint of those elements.

What is the fullform of DBMS?

The full form of DBMS is Database Management System.

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Related Questions

What is the Difference between relation schema and relation instance?

difference between relation sehema and relation instance in dbms

What is the cordinality of dbms?

the number of tuple in a relation is called the cordinality of a relation?

What do extension and intentions of relations mean in dbms?

ExtensionThe extension of a given relation is the set of tuples appearing in that relation at any given instance. The extension thus varies with time. It changes as tuples are created, destroyed, and updated.

Give entity relation diagram for hospital system in dbms?

d_id,d_name

What is minimal normal form a relation must satisfy in dbms?

Third normal form.

Why relation have key in DBMS?

A software system that facilitates the creation and maintenance and use of an electronic database

What do you mean by degree in DBMS?

It is the number of attribute of its relation schema. Its is an association among two or more entities..

Why duplicate tuples are not allowed in DBMS?

Since relation is a set, and tuples are element of a set, according to set theory, the elements of a set are not ordered.

What are highlights of DBMS?

NA_ what are highlights of advanced DBMS what are highlights of advanced DBMS what are highlights of advanced DBMS

What is instances in dbms?

In a database management system (DBMS), an instance refers to a single, specific copy of the database software running on a particular system at a given time. Each instance has its own memory allocation, storage resources, and configuration settings. Multiple instances of a DBMS can coexist on the same physical server, each serving different applications or users.

Is java DBMS?

no, Java is not dbms.. Java is a programming language Dbms is database

Is SQL DBMS or RDBMS?

dbms

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