This timesaving book shows you how to exploit the power of IBM's Open Query File (OPNQRYF) to sort, select, summarize, and join data for input to programs. With OPNQRYF, you can allow end users to see data sorted the way they want it, to see only the data fields they are interested in, to calculate new fields, or to see data in summary form--all without having to write high-level language programs.Just as query programs have enabled users to be much more productive, OPNQRYF can make your programs more productive.
Instead of writing two or more programs that do more or less the same thing, you can write one flexible program that will handle all foreseen (and many unforeseen) requests for information. The book covers keywords, special parameters, record selection, assigning values to fields, joining two or more files, and much more.
Upon completion of Open Query File Magic! you will be able to:
|Author Name:||Ted Holt|
|Publication Date:||October 1, 1998|
|Product Dimensions:||7 x 0.7 x 9 inches|
|Shipping Weight:||1.1 pounds|
Category: 65% to 74% Off
Vendor: Ted Holt
$ 25.45 $ 79.95
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