On Jun 28, 2007, at 5:33 AM, Ralf S. Engelschall wrote:

> As it is AFAIK not documented anyhwere and also far away from being
> obvious, here is a short tutorial for the RPM hackers on how to  
> migrate
> the RPM DB of RPM 5 between Berkeley-DB and SQLite.
>

This thread is likely the only doco on converting to sqlite
     https://lists.dulug.duke.edu/pipermail/rpm-devel/2005-February/ 
000302.html

The procedure is/was deliberately not obvious because I don't
think that multiple db support in rpm is any kind of feature that
is worth advertising or supporting.

I still don't think a feature.

The primary goal of a package manager is installing content
on the file system, not converting metadata amongst multiple
types of databases "just to see what happens".

73 de Jeff