About the Author

Joe Celko served 10 years on ANSI/ISO SQL Standards Committee and contributed to the SQL-89 and SQL-92 Standards.

He has written over 900 columns in the computer trade and academic press, mostly dealing with data and databases, and has authored seven other books on SQL for Morgan Kaufmann:

• SQL for Smarties (1995, 1999, 2005, 2010)

• SQL Puzzles and Answers (1997, 2006)

• Data and Databases (1999)

• Trees and Hierarchies in SQL (2004)

• SQL Programming Style (2005)

• Analytics and OLAP in SQL (2005)

• Thinking in Sets (2008)

Mr. Celko’s past columns include:

• Columns for Simple Talk (Redgate Software)

• “CELKO,” Intelligent Enterprise magazine (CMP)

• BMC’s DBAzine.com e-magazine (BMC Software)

• “SQL Explorer,” DBMS (Miller ...

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