Someone said I could access FoxPro-type indices. What is the
difference between FoxPro indices and CA-Clipper indices? What
gain can I get from doing that, and how?
First off, there are several advantages to using a FoxPro-like
index scheme.
The nice thing about .CDX files is that they can contain more
than one "tag," each of which relates to a key value. Therefore
you can drop all your many CA-Clipper .NTX files by converting each
to a "tag" within a single .CDX file. This also lets you always
open a file with USE <file> INDEX <file> with assurance that you
got all the tags.
Replaceable Database Drivers which I know to support FoxPro-like
files are:
* The SIx Driver by Successware
* Comix
* DBFCDX driver already included in CA-Clipper 5.2c
SIx does not give you Rushmore lookups, but it is shipped with an
add-in called MACH which does.
For more information, send email to Loren Scott of Successware at
70274,2677 on Compuserve.
If want traditional CA-Clipper .NTX index files, but also want
a "Rushmore" sort of feature, there is a library called ClipMore
which claims to accomplish this. ClipMore costs US $150 and is
published by Loadstone, Inc./215 Barmount Drive/Columbia, South
Carolina 29210 USA. Loadstone's telephone number is +1 803 731
9128.