In this FAQ we summarize many of the most common questions
we receive from people who are considering purchasing RaSQL/B,
or who are considering upgrading from a prior version of
RaSQL/B. We try to address what the product is, what its
features are, how and where it is used, how it is supported,
and how it interacts with other products.
You said that Btrieve is a client-server
engine. What do you mean?
On a non-client-server system such as DBF+CDX, the
workstation maintains all the data as well as all the indexes.
Every time you add or modify a record, the workstation must
update the index files on the server. Every time you Seek a
record, the workstation must read the index files to lookup the
key value. With Btrieve, all indexes are maintained on the
server: when you add or modify a record, the server updates the
indexes automatically. When you Seek a record, RaSQL
transparently sends the key value to the server: the server
looks up the key value and sends only the record to the
workstation. This can result in an enormous improvement in
network throughput.
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Why should I use RaSQL/B when there are
other shareware and even freeware libraries out
there?
RaSQL/B is an RDD and is thus much easier to use. In
addition, most freeware and shareware Btrieve libraries (as
well as many commercial ones) are created by consultants
“doing the library thing on the side.” Since product
development and support is not their first priority, you may be
in for a rude awakening when you desperately need support for
your mission critical application.
Since 1986 Communication Horizons has been dedicated to
product development, support and enhancement. Don't trust your
mission critical application to anything less.
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Who is Communication Horizons?
In a business where companies and products come and go
seemingly every month, Communication Horizons has been a
fixture on the PC software landscape since 1985. Their
flagship product, NetLib,
was introduced in 1986, and has won either “best of”
or “honorable mention” in the DataBased Advisor
Readers Choice Awards every year since 1989.
RaSQL, introduced in 1989, has almost single-handedly raised
the awareness in the "Xbase" community to the benefits of
Btrieve. Between the two, Communication Horizons' products
have been used by tens of thousands of developers world-wide.
Besides providing the highest quality software,
Communication Horizons aims to provide the highest quality
support whether by CompuServe forum, Internet web site,
phone or fax. In fact Neil Weicher, the main developer of
NetLib and RaSQL still oversees technical support.
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