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  • From: "m. allan noah" <anoah AT pfeiffer.edu>
  • To: TDS Development Group <freetds AT franklin.oit.unc.edu>
  • Subject: Re: controlling the version in dblib
  • Date: Wed, 11 Nov 1998 11:49:53 -0500 (EST)


yes sir, thankyou, may i have another :)

al

"The power of accurate observation is commonly called cynicism
by those who have not got it" - g b shaw

On Wed, 11 Nov 1998, Gregg Jensen wrote:

> I pulled down the latest from CVS and compared it with code that I am
> currently using and noticed a bit of difference with respect to
> controlling which version of the protocol is in use (in dblib). What
> I have, is that by setting an environment (DBLIB_VERSION) variable
> before calling dblogin, you can control which version of the protocol
> will be used for the DBPROCESS returned. Thus you can access both
> Sybase and MS-SQL server at the same time. The reason for adding it as
> an environment variable (note - I have the necessary code changes for
> dbsetversion() as well), is that some higher level programs don't
> provide a mechanism to change the version level, without modifiying
> their source code. For example, with sybperl, it is coded for use only
> with Sybase and does not provide a function for allowing the user to
> change it, the same with sqsh-1.4. By having the environment variable,
> the source code for these to applications do not have to change, and the
> user can control it by changing the environment variable. I am in a
> situation where there is quite a bit of information that I need from a
> Sybase database that is closely related to information on our MS-SQL
> database. With this use of the environment variable, I am able to have
> one perl script (using sybperl) that goes to one database, gets
> infromation and uses it in the query to the other database.
>
> I don't see where adding this code would break anything that currently
> exists, and would be an added "feature" (possibly hidden since the
> documentation isn't there, and it is not standard for dblib) of the
> library. If it shouldn't be added let me know, otherwise I will go
> ahead and check in the changes on Friday (time to think about it).
>
> Gregg
>
>
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