Question

Basically, I am doing something like this:

select a.name from schedule as a
where date(now()) <= a.dateTo;

But a.dateTo can be null. So, I would like a query to do something like this:

select a.name from schedule as a
where date(now()) <= a.dateTo IF a.dateTo is not null;

That’s just a simplified way to explain what I am trying to achieve.

Any ideas?

UPDATE:

The following example might give a better idea of what is required

select a.name from schedule as a
where date(now()) >= a.dateFrom and 
      date(now()) <= a.dateTo;

If I add the OR a.dateTo is null, I think it will override the first condition: date(now()) >= a.dateFrom, which is not the desired query. Something similar would happen with the use of AND.

If a.dateTo is null, it will be > date(now()), so those records should be retrieved, if the first condition also applies: date(now()) >= a.dateFrom

Thanks for your help

Answer 1

select a.name from schedule as a where curdate() <= ifnull(a.dateTo,curdate());