Database, An organized collection of structured information, or data, typically stored electronically in a computer system., DBMS, Database Management System. Software used to create, manage, and query databases., SQL, Structured Query Language. The standard language for relational database management systems., Relational Database, A type of database that stores and provides access to data points that are related to one another, organized in tables., NoSQL Database, A non-relational database for storage and retrieval of data modeled in means other than tabular relations., Primary Key, A unique identifier for a record in a table. It cannot have null values., Foreign Key, A field in one table that uniquely identifies a row of another table, linking the two tables., Schema, The structure of a database that defines the tables, fields, relationships, and constraints., Index (Database), A data structure that improves the speed of data retrieval operations on a database table., Normalization, The process of organizing data in a database to reduce redundancy and improve data integrity..

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