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Joe Celko is an American relational database expert from Austin, Texas. He has participated on the ANSI X3H2 Database Standards Committee, and helped write the SQL-89 and SQL-92 standards. He is the author of a Morgan-Kaufmann series of books on SQL, and over 1000 published articles on SQL and other database topics. He had been a full-time statistician for several years.

Celko achieved his undergraduate and first Masters degrees in math at Georgia State University. He also has a second Masters degree in computer science from Georgia Tech.

He is credited with coining the term lasagna code and popularizing Michael J. Kamfonas' [1] nested set model for trees in SQL, state transition constraints in SQL, a taxonomy of data encoding schemes, and several other design patterns in SQL DDL and DML.

This author page uses material from the Wikipedia article "Joe Celko", which is released under the Creative Commons Attribution-Share-Alike License 3.0