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Open Query File Magic! |  | Author: Ted Holt
Publisher: Mc Press
Category: Book
Buy New: $69.00
as of 3/10/2010 04:46 CST details
New (2) Used (9) from $23.02
Seller: Amazon.com
Rating:  2 reviews
Sales Rank: 2478295
Media: Paperback
Edition: 2nd
Pages: 280
Number Of Items: 1
Shipping Weight (lbs): 1.1
Dimensions (in): 9 x 7.1 x 0.7
ISBN: 1883884578
Dewey Decimal Number: 005.741
EAN: 9781883884574
ASIN: 1883884578
Publication Date: October 1, 1998
Availability: Usually ships in 1 to 4 weeks
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Product Description
OPNQRYF (Open Query File) is the most powerful, most complex, and least documented command in the CL language. You can use it to sort and summarize data, but it can also do much more for you. It allows you to create new fields and assign values to them, perform complex joins of multiple files, create new files with existing and calculated fields, select records (even based on summarized data), and much more! The more you learn about OPNQRYF, the more opportunities you will find to use it in your applications. This book explains the ins and outs of OPNQRYF from the basic operations through the most complex mapping and selection parameters. This new edition of the best-selling book includes invaluable new material. There are new chapters on date data type, ILE, and the Year 2000 issue. The book is reorganized to make it more useful not only as a learning tool, but also as a reference for on-going value.
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| Customer Reviews:
 Useful May 23, 2000
2 out of 2 found this review helpful
This is a very useful book to have around. The author takes you through simple open query file syntax to some very complex examples. It has all I needed to know to get the most out of open query file.
 information not sufficient September 30, 1999
2 out of 4 found this review helpful
ok. it may be useful for beginners. but i expect much example in dynamic joins & wild card functions.much more information/ solved example for date & time comaparisions are needed. I want you to mail me any of your replies to narasu@wipsys.soft.net. thanking you.
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