Relational database model
Modelo de base de datos relacional
- Date
- 1970 · confidence high
- Place
- IBM Research, San Jose, California, United States
- Credited to
- Edgar F. Codd (IBM)
- People
- 👤 Edgar Frank Codd1923–2003
- Field
- Knowledge & symbols
What it is
Mathematical model that organises data into tables linked by keys and queryable through relational algebra, independent of how it is stored. It is the foundation of almost every information system.
What it led to
- The enterprise software industry (Oracle, IBM DB2, SQL Server)
- The computerisation of management, banking and e-commerce
- Data warehouses and business analytics
Built on
- Set theory and transfinite cardinals1874
- Hard disk drive (IBM RAMAC)1956
- IBM System/3601964
- hierarchical databases (IMS)
Made possible
- SQL query language1974
- Boyce–Codd normal form1974
- E-commerce (Amazon, eBay)1994-1995
- Oracle
- enterprise resource planning (ERP)