After months of declining health, Edgar F. Luckenbach died at his estate, Elm Court, in Sands Point, New York, on April 26, 1943.
Edgar Allan Poe | Edgar Rice Burroughs | Edgar Degas | Edgar Award | J. Edgar Hoover | Edgar Winter | Edgar | Edgar Wallace | Edgar Lee Masters | Edgar Sulite | Edgar Buchanan | Frankie Edgar | Edgar Bergen | Theodore Edgar McCarrick | Jim Edgar | Edgar Rentería | Édgar Ramírez | Edgar Dewdney | Edgar Cardoso | Edgar Bronfman, Sr. | Edgar Barrier | Luckenbach, Texas | Edgar Wright | Edgar Schein | Edgar Quinet | Edgar Kennedy | Edgar G. Ulmer | Edgar Ansel Mowrer | Edgar Allan Poe's | Kika Edgar |
It was created as a part of the Ingres DBMS effort at University of California, Berkeley, based on Codd's earlier suggested but not implemented Data Sub-Language ALPHA.