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History of RDBMS

  • Edgar Frank “Ted” Codd
  • Born in Isle of Porland in England on Aug 19, 1923 – April 18, 2003
  • Studied mathematics & chemistry at Exeter College, Oxford.
  • In 1948, in New York to work for IBM as mathematical programmer
  • While working for IBM, invented the RDBMS (Relational Database Management System)
  • Principle for RDBMS were first outline by Dr. E. F. Codd in 1970 paper titled “A Relational Model of Data For Large Shared Data Banks”
  • Common models were used at that time were hierarchical & networking, or even simple flat file data structure.
  • Flat File means traditional approach which is used to store data or information.