Re: DB design issue
Date: 17 Nov 2006 07:40:27 -0800
Message-ID: <1163778027.670526.272560_at_m7g2000cwm.googlegroups.com>
Neo ha scritto:
>
> Could you treat simple types as a composed type having one element?
hi, thank you for your interest.
well I thought simple types with different attributes, but your hint
make me think about the following possible solution:
T_SYSTEM
T_INTERFACE (interfaces have a direction: a source and a dest system)
Iditf
T_MESSAGE
T_TYPE
T_FIELDSOFMESSAGE
Idsys
Name
Description
Name
Idsys (source)
Idsys (dest)
Link
Protocol
Description
Idmes
Iditf
Name
Identification
Service
Timing
Answer
Description
Idtyp
Name
isNative
Description
Idfom
Position
Idtyp
Name
Size
Unit
Values
Accuracy
Resolution
Description
T_FIELDSOFTYPE
Idfot
Idtyp
Position
Idtyp
Name
Size
Unit
Values
Accuracy
Resolution
Description
Do you all think it could be a good design? Received on Fri Nov 17 2006 - 16:40:27 CET