German,

> I am using delphi as a client language access. I know it includes some
> libraries to read the system date format. So, I using its protocol to
> perform a case routine.

What do you want to achieve?

If you want to insert or update a record including a
date/time column, then you'd best using a parametrized
query and assigning the value via the ParamByName(...)
method.


Best Regards,
Thomas Steinmaurer

The IB LogManager Product Family
Logging/auditing suite for InterBase/Firebird
http://www.iblogmanager.com