[SQL] Multiple Index's

[Brian C. Doyle]

Hello all,

How would I prevent a user from submitting information to a table once they 
have already done so for that day.  I would need them to be able 
information on future dates as well as have information in the table from 
past dates from that user.

I am looking for something like insert user_id, date, info where user_id 
and date are not the same... does that make sense?




Brian C. Doyle