Re: First day of month, last day of month

Frank Bax wrote:
> Frank Bax wrote:
>> Nacef LABIDI wrote:
>>> is there a better method to retrieve all the rows with dates in the
>>> current month.
>>
>> select * from mytable where extract(month from mydate) = extract(month
>> from now()) and extract(year from mydate) = extract(year from now());
>
> Sorry; I was not thinking clearly - date_trunc is better for this:
>
> select * from mytable where date_trunc('month',mydate) =
> date_trunc('month',now());

I have some code that uses extract() for this sort of thing. Would you
mind explaining how date_trunc() is better for this?

Most of my extract() results end up in <select> drop-down boxes in HTML.

Thanks.

Colin