[1] He is credited with coining the term lasagna code and popularizing Michael J. Kamfonas' nested set model for trees in SQL, a taxonomy of data encoding schemes, and several other design patterns in SQL DDL and DML.
[2] Celko achieved his undergraduate and first master's degrees in math at Georgia State University.
[3] Celko has a very wide range of industries and applications starting in 1965 with a National Science Fair prize job at the Pittman-Dunn Research labs at the Frankford Arsenal.
His public sector consulting work has been for prison systems, medical organizations, NASA and defense contractors.
He has taught training classes in South Africa, Turkey, the UK, Norway, Sweden, Finland, The Netherlands, Brazil, Belgium and Switzerland.