Skip to main content

Different Types of Attributes in DBMS Neeraj Mishra The Crazy Programmer

Any real-world object with self-existence is considered an entity in the computer world. Like a car, any person, any book, painting, news, building anything which is available in this world can be considered as an entity.

Characteristics or specifications of any entity are known as attributes of that entity. Attributes are physical or virtual properties of an entity.

There are mainly 8 types of attributes, let’s discuss them one by one in detail.

Types of Attributes in DBMS

Different Types of Attributes in DBMS

1. Composite Attributes

Those attributes which may have more than one section like name can be sub-divided in First, Middle, last name. Composite attributes can be filled in sub-sections but always show as a single attribute. Like you can enter your name in three sections but the display will be combined. These brackets “()” are used to represent composite attributes.

2. Simple Attributes

Those attributes which cannot be divided further like the age of any person.

3. Single-Valued Attributes

Those attributes whose values always remain the same like the name of any person.

4. Multi-Valued Attributes

Those attributes whose values have more than one entry like a person’s name is single valued but his/her number of degrees can be more then one. Like Under graduation and post-graduation. These brackets “{}” are used to represent multivalued attributes.

5. Derived Attributes

Those attributes whose value can be derived from other attributes like from date of birth we can derive age of a person.

6. Stored Attributes

Those attributes whose value remains constant are known as stored attributes. Derived attributes are derived from stored attributes.

7. Complex Attributes

It is a combination of the Multivalued and Composite attributes. These kinds of attributes have many sub-sections in their values. Like Degree of any person can be dived in graduation and Masters. These degrees are also subdivided into further details like name of degree, institute, year of passing, etc.

8. Key Attributes

Those attributes whose value is unique for that entity. Like registration number of any student or chassis number of any vehicle etc. These types of key attributes are used to create a different kinds of keys in relational data models.

The post Different Types of Attributes in DBMS appeared first on The Crazy Programmer.



from The Crazy Programmer https://ift.tt/3sgfapO

Labels

Labels:

Comments

Post a Comment

Popular posts from this blog

Difference between Web Designer and Web Developer Neeraj Mishra The Crazy Programmer

Have you ever wondered about the distinctions between web developers’ and web designers’ duties and obligations? You’re not alone! Many people have trouble distinguishing between these two. Although they collaborate to publish new websites on the internet, web developers and web designers play very different roles. To put these job possibilities into perspective, consider the construction of a house. To create a vision for the house, including the visual components, the space planning and layout, the materials, and the overall appearance and sense of the space, you need an architect. That said, to translate an idea into a building, you need construction professionals to take those architectural drawings and put them into practice. Image Source In a similar vein, web development and design work together to create websites. Let’s examine the major responsibilities and distinctions between web developers and web designers. Let’s get going, shall we? What Does a Web Designer Do?...
Post a Comment
Read more

A guide to data integration tools

CData Software is a leader in data access and connectivity solutions. It specializes in the development of data drivers and data access technologies for real-time access to online or on-premise applications, databases and web APIs. The company is focused on bringing data connectivity capabilities natively into tools organizations already use. It also features ETL/ELT solutions, enterprise connectors, and data visualization. Matillion ’s data transformation software empowers customers to extract data from a wide number of sources, load it into their chosen cloud data warehouse (CDW) and transform that data from its siloed source state, into analytics-ready insights – prepared for advanced analytics, machine learning, and artificial intelligence use cases. Only Matillion is purpose-built for Snowflake, Amazon Redshift, Google BigQuery, and Microsoft Azure, enabling businesses to achieve new levels of simplicity, speed, scale, and savings. Trusted by companies of all sizes to meet...
Post a Comment
Read more

Olive and NTT DATA Join Forces to Accelerate the Global Development and Deployment of AI Solutions

U.S.A., March 14, 2021 — Olive , the automation company creating the Internet of Healthcare, today announced an alliance with NTT DATA , a global digital business and IT services leader. The collaboration will fast track the creation of new healthcare solutions to transform the health experience for humans — both in the traditional healthcare setting and at home. As a member of Olive’s Deploy, Develop and Distribute Partnership Programs , NTT DATA is leveraging Olive’s open platform to innovate, build and distribute solutions to Olive’s customers, which include some of the country’s largest health providers. Olive and NTT DATA will co-develop new Loops — applications that work on Olive’s platform to provide humans real-time intelligence — and new machine learning and robotic process automation (RPA) models. NTT DATA and Olive will devote an early focus to enabling efficiencies in supply chain and IT, with other disciplines to follow. “This is an exciting period of growth at Olive, so...
Post a Comment
Read more