oops, i've just sent it to mike. Sabine Richter wrote: > > Hello Mike, hello Silvia, > > I think, the statement you suggest, Mike, isn't right. It gives you only > patients who are over 1 year in hospital. That means, who came before > (or at) 2000-01-25 and left after (or at) 2001-01-30. I think, you > didn't mean that, Silvia? > I understood, you wanted the persons who came to hospital between > 2000-01-25 and 2001-01-30 and that it doesn't matter when they left. > That will be: > SELECT * FROM table WHERE begin_date/admission_date >=2000-01-25 and > begin_date/admission_date <= 2001-01-30; > > I'm not familiar with mysql this moment, but perhaps, if admission_date > is a timestamp, you have to extract the dateportion of the column. > Admission date can be 2001-01-30-13h:23m:45s and that may be interpreted > as greater than 2001-01-30. (I don't know if that's a problem in mysql, > in other backends it is). > > Best regards > Sabine > > mike wrote: > > > > Dra. Silvia Andreasi, > > > > SELECT * FROM table WHERE begin_date_column <=2000-01-25 and > > 2001-01-30<= end_date_column; > > > > begin_date_column and end_date_column have to be date type columns. > > > > Mike > > sql,mysql > > > > Dra. Silvia Andreasi wrote: > > > > > Hi, > > > > > > How can I get the columns between a given time interval? Something like: " > > > The patients admitted between january 25, 2000 and january 30, 2001" > > > ?????? > > > > > > I'm new to MySql and would like a suggestion from you... > > > > > > Best Regards > > > > > > Silvia > > > > >
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