Re: [Firebird-devel] Parameterized Exceptions

[Vlad K. <hv...@us...>]

> Currently user can't create good exception texts and rely on them,
> because exceptions generally need more informations. So user need to
> throw exceptions passing its complete text [exception e1 'Exception ' ||
> info1 || ' at ' || info2]. This lose the ability to create exception
> texts and to catch the parameters without parse the formated text.
> 
> The exceptions are currently encoded in this way:
> isc_except, <number>,
> isc_random, <string>
> 
> I propose to make parameters directly inside user text exceptions, like
> this:
> create exception e1 'Exception @1 at @2';
> 
> This is easy for user, easy for the engine. Does not need metadata
> extensions and is backward compatible.

    Why not implement built-in FORMAT function instead ?

Regards,
Vlad