RELATIONAL DATABASE Meaning and
Definition
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A relational database is a structured collection of data that is organized in tables, wherein the data is stored with the aim of establishing relationships between various entities within the database. It is designed to efficiently store, manage, and retrieve large volumes of data, ensuring data integrity and offering flexibility in data manipulation.
In a relational database, information is stored in the form of rows and columns within tables. Each table represents a specific entity or concept, and each row within the table represents an instance or occurrence of that entity. The columns define the attributes or characteristics associated with the entity. These tables are then linked using key relationships, typically primary and foreign keys.
The primary key is a unique identifier for each record in a table, ensuring that no two records have the same value. Foreign keys establish relationships between tables by referencing the primary key of another table. These relationships enable the database to maintain data consistency and integrity, as changes made to a record in one table can be automatically reflected in related tables.
Relational databases offer several advantages, including data consistency, easy data retrieval through SQL queries, scalability, and flexibility in adapting to changing requirements. They are widely used in various industries, including finance, healthcare, retail, and telecommunications, where large amounts of data need to be managed efficiently and securely.
Common Misspellings for RELATIONAL DATABASE
- eelational database
- delational database
- felational database
- telational database
- 5elational database
- 4elational database
- rwlational database
- rslational database
- rdlational database
- rrlational database
- r4lational database
- r3lational database
- rekational database
- repational database
- reoational database
- relztional database
- relstional database
- relwtional database
- relqtional database
Etymology of RELATIONAL DATABASE
The word "relational database" derives from the term "relation" which refers to a mathematical concept defined by the logician and mathematician, E.F. Codd. In 1970, Codd introduced the concept of a relational model for databases, which constituted a revolutionary approach to organize and manage data.
Codd's relational model proposed that data should be stored in tables, or relations, consisting of rows (tuples) and columns (attributes). These tables are interconnected through common attributes, establishing relationships among the data. The term "relational" derives from this fundamental principle of organizing data into related tables.
Hence, the phrase "relational database" was coined to describe a database system that adopts Codd's relational model. Such databases use structured query language (SQL) to manipulate and retrieve data based on the established relationships within the tables.
Similar spelling word for RELATIONAL DATABASE
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