Hi everyone,

All right, you have convinced me. I'll implement this way.

Thank you all for the advice and help!

- Wojciech

On Aug 6, 7:30 am, Daniel Roseman <dan...@roseman.org.uk> wrote:
> On Aug 5, 11:38 pm,WojciechGryc <wojci...@gmail.com> wrote:
>
> > Thanks for your replies!
>
> > The problem with storing the user ID for each table and then filtering
> > by the ID is that once the data set grows very large, this will become
> > extremely slow (as far as I understand).
>
> > I expected to have about 2000 pieces of information per user, with
> > several dozen users (at least). Filtering by user ID each time would
> > be extremely wasteful, would it not?
>
> > Thanks,
> >Wojciech
>
> No, not at all. This is what databases are *designed* to do, and they
> do it super-efficiently. 2000 rows per user * dozens of users is
> absolutely nothing - there are dbs with many millions of rows out
> there. This is absolutely the right solution.
> --
> DR.
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