On lau, 2007-07-28 at 17:12 -0300, Bruno Rodrigues Siqueira wrote:
> where
>
> to_char( data_encerramento ,'yyyy-mm')
> between '2006-12' and '2007-01'
assuming data_encerramento is a date column, try:
WHERE data_encerramento between '2006-12-01' and '2007-01-31'
gnari