> > >- Does anybody knows exactly what's all the power of Interbase?
> > Probably not, but we're working to gather all the bits together.
>
> Maybe you'll discover that substr is already buried in the engine
> under the
>name __substr or something alike, keep us informed!

From ibase.h:
#define blr_substring 40
Don't get too excited. It's not implemented, to the best of my
knowledge.

----
blr_substring is implemented - and actually used in some hand-coded
BLR used for rdb$trigger03 (don't sue me if I have the 03 part wrong...)

However, it is only correct for single-byte character sets.

Dave