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2. Database - Wikipedia

   en.wikipedia.org/wiki/Database

   An SQL select statement and its result. In computing, a database is an organized collection of data or a type of data store based on the use of a database management system ( DBMS ), the software that interacts with end users, applications, and the database itself to capture and analyze the data. The DBMS additionally encompasses the core ...

3. Relational database - Wikipedia

   en.wikipedia.org/wiki/Relational_database

   Relational database. A relational database ( RDB [1]) is a database based on the relational model of data, as proposed by E. F. Codd in 1970. [2] A database management system used to maintain relational databases is a relational database management system ( RDBMS ). Many relational database systems are equipped with the option of using SQL ...

4. Centralized database - Wikipedia

   en.wikipedia.org/wiki/Centralized_database

   Centralized database. A centralized database (sometimes abbreviated CDB) is a database that is located, stored, and maintained in a single location. This location is most often a central computer or database system, for example a desktop or server CPU, or a mainframe computer. In most cases, a centralized database would be used by an ...

5. Database storage structures - Wikipedia

   en.wikipedia.org/wiki/Database_storage_structures

   Database tables and indexes may be stored on disk in one of a number of forms, including ordered/unordered flat files, ISAM, heap files, hash buckets, or B+ trees. Each form has its own particular advantages and disadvantages. The most commonly used forms are B-trees and ISAM. Such forms or structures are one aspect of the overall schema used ...

6. Data orientation - Wikipedia

   en.wikipedia.org/wiki/Column-oriented_DBMS

   A column-oriented DBMS or columnar DBMS is a database management system (DBMS) that stores data tables by column rather than by row. Benefits include more efficient access to data when only querying a subset of columns (by eliminating the need to read columns that are not relevant), and more options for data compression.

7. Data striping - Wikipedia

   en.wikipedia.org/wiki/Data_striping

   Data striping. In computer data storage, data striping is the technique of segmenting logically sequential data, such as a file, so that consecutive segments are stored on different physical storage devices. An example of data striping. Files A and B, of four blocks each are spread over disks D1 to D3. Striping is useful when a processing ...

8. Lists of database management systems - Wikipedia

   en.wikipedia.org/wiki/Lists_of_database...

   Lists of database management systems provide indexes and/or comparisons of different types of database management system . They include: List of relational database management systems, for database management systems based on the relational model. See Category:Database management systems for a complete lists of articles about database ...

9. Object–relational database - Wikipedia

   en.wikipedia.org/wiki/Object–relational_database

   Object–relational database. An object–relational database ( ORD ), or object–relational database management system ( ORDBMS ), is a database management system (DBMS) similar to a relational database, but with an object-oriented database model: objects, classes and inheritance are directly supported in database schemas and in the query ...