"A database is an organized collection of data (also known as a data store) stored and accessed electronically through the use of a database management system."
Database Systems are used to store, organize, and manage data efficiently. They allow for quick and easy retrieval of information, which is essential for businesses, governments, and organizations.
Data modeling: The process of defining the structure of a database, including tables, fields, and relationships between them.
Relational databases: A type of database wherein data is organized into tables with a predefined structure.
Normalization: A series of guidelines used to minimize redundancy and optimize database structure.
SQL: A language used to manage and manipulate data stored in a relational database.
Data warehousing: A technique for consolidating, organizing and managing data from a variety of sources.
Data mining: The process of analyzing data from different perspectives and discovering patterns, relationships or anomalies.
Indexing: The process of creating indices for database tables, to allow faster and more efficient access to data.
Query optimization: The process of optimizing database queries to reduce execution time and improve overall performance.
NoSQL databases: A type of database that stores and retrieves data using techniques other than the traditional relational model.
ACID properties: A set of properties that ensure that database transactions are processed reliably.
Data security: Protecting databases from unauthorized access, alteration or destruction.
"Small databases can be stored on a file system, while large databases are hosted on computer clusters or cloud storage."
"The design of databases spans formal techniques and practical considerations, including data modeling, efficient data representation and storage, query languages, security and privacy of sensitive data, and distributed computing issues."
"A database management system (DBMS) is the software that interacts with end users, applications, and the database itself to capture and analyze the data."
"The DBMS software additionally encompasses the core facilities provided to administer the database."
"The sum total of the database, the DBMS, and the associated applications can be referred to as a database system."
"Often the term 'database' is also used loosely to refer to any of the DBMS, the database system, or an application associated with the database."
"Computer scientists may classify database management systems according to the database models that they support."
"Relational databases became dominant in the 1980s."
"These model data as rows and columns in a series of tables."
"The vast majority use SQL for writing and querying data."
"In the 2000s, non-relational databases became popular."
"Non-relational databases became popular, collectively referred to as NoSQL."
"Large databases are hosted on computer clusters or cloud storage."
"Data modeling, efficient data representation and storage, query languages, security and privacy of sensitive data, and distributed computing issues."
"The software interacts with end users, applications, and the database itself to capture and analyze the data."
"The purpose of a database system is to store and access data electronically."
"A database system consists of the database, the DBMS, and associated applications."
"They classify DBMS according to the database models they support."
"NoSQL databases gained popularity by offering a different approach and using different query languages compared to relational databases."