Re: Constraints

In <4risqb$qbr_at_schinkel.rz.uni-potsdam.de>, mkupries_at_rz.uni-potsdam.de ( Mario Kupries) writes:
>Hello,
>
>
> does someone can explain the usage of CONSTRAINTS to me??
>
>
>
>Thank you,
>
> --Mario
> kupries_at_soft.cs.uni-potsdam.de
>
>--

Please post more detail of what your are trying to find out. There are table constraints (primary and foreign key for example) and column constraints (check constraint). Each serves to assure data integrity.

D. Scott Moyer, Jr.                        dmoyer_at_gpu.com (preferred for work)
GPU Service Corporation                dsmoyer_at_enter.net (preferred for home)