MySQL how to do an if exist increment in a single query

Question

I just wish to have a table to store a number of events by day.

Given a table:

create table totals (
    entryday date,
    total int(11) default 0 n         


        

Answer 1

I'm not sure I understand your question, but maybe this query is your answer :

update totals set total = total + 1 where entryday = "08-01-11"