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FoxRockX Single Issue, January/February, 2012 (No. 24)

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Authors:  Pradip Acharya,

Length: 24 pages (A4)
Formats Available: Printed (incl. electronic) or Electronic only
Printed format: A4 (210x297 mm or 8.3x11.7 in)
Electronic format: PDF
Single Issue Price ($US): 29.00 (printed+electronic) $19.00 (electronic only)
Press date: January, 2012

Printed issue availability: 2012/01 issue being mailed on February 1, 2012.
Electronic issue availability: Available for download.
Source code: Available for download.

January, 2012 - Number 24
Managing Properties as Virtual Table Fields [[Pradip Acharya]] In a distributed multi user application with a central shared database, itís not easy to add new fields to a table or modify table structures at will. This may not even be practical. For example, when the Product table must support inventory for a several Business Models, there may be thousands of individual Product properties. Creating child tables for each and every case is one option, but not a convenient option. The .scx VFP form tables use a Properties memo field for dealing with an indeterminate number of properties for each row. This concept has now been implemented in the Foxparse C API, making it possible to dynamically manage any number of Properties as virtual table fields. Foxparse was first introduced here in 2011.

Deep Dive: The ctl32 Library, Part 3 [[Doug Hennig]] Carlos Alloatti has created an incredible library of controls you can use to give your applications a more modern interface. Doug finishes his look at the library with the last set of controls.

Speed Up Your SQL Code Tamar E Granor VFP's SQL commands can be blazingly fast, but you have to set things up right.

In my last article, I talked about the two functions in VFP that allow you to measure the optimization of SQL commands. This month, Iíll look at what you can do to improve performance once you know that a query is sub-optimal.

VFPX: ParallelFox Rick Schummer Parallel processing is defined as the performance by a computer of two or more simultaneous operations divided among multiple processors. Parallel programming is spawning processes on two separate processors either on different computers or the same computer. This is becoming more and more important based on the engineering fact it is getting harder to get silicone-based processors to run faster with the reliability and stability we expect and require. So how do Visual FoxPro developers take advantage of this approach? Well thanks to Joel Leach and the ParallelFox project on VFPX, it actually is quite straightforward.

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