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 1200 published articles on SQL and other database topics. He had been a full-time statistician for several years.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.
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