iSeries and AS/400 SQL at Work
Author: Howard Arner
Howard Arner will take you from the beginning to the end with information for beginners and experts alike. Best of all, the book comes with a CD that has all of the sample data and queries used in the book, plus a FREE copy of SQLThing that you can use to work through the examples in the book so you learn by doing. You will learn and understand how to create SQL statements, tune for performance, deal with legacy issues, take advantage of new features available only in SQL, write complex aggregate queries, write stored procedures and more.