In response to Jay :
> Thanks!
> But, since the master can contain many users (user2, user3, and so on)
> I suppose this won't be a proper solution?
> Sorry if I was a bit unclear in my description.
>
> I.e., the master is of the form:
>
> user_id date
> User1 20010101
> User1 2101
> User1 19
Thanks!
But, since the master can contain many users (user2, user3, and so on)
I suppose this won't be a proper solution?
Sorry if I was a bit unclear in my description.
I.e., the master is of the form:
user_id date
User1 20010101
User1 2101
User1 19990101
User1 19970101
User2 ...
...
Btw, I
Jay wrote:
> Hi,
>
> I'm somewhat new to SQL so I need a bit of help with this problem. So
> I have 2 tables: "selection" and "master", both have two columns in
> each: "user_id" and "date".
>
> The "selection" contains one row for each "user_id" and depicts _one_
> "date" value for each user.
CORRECTION:
The original "selection" should be:
User1 2101
NOT
User1 19990101
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