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Need to find years that are the same in a query in Access.?
I need to find years that are equal in a query but for several different years. Here is what the Access query needs to do:
I have the fields x, y, z, and date.
I need x and y to be equal and z to be different. Also, if that is true then I need them to be in the same year. How can I write something that is looking for the year to be the same but different years at the same time?
that was somewhat confusing so i will try and elaborate. example: with fields x, y, z and date comparing two different entries.
x and y are equal so x = 1 for both and y = yes for both
z is not equal so one entry z = 5 and one z=6
if that is true i there should be two different dates for the same year and i am trying to compare the difference in days so one is 4/5/2007 and one is 4/6/2007. I need to record all of the records like this.
I know it is still confusing but i hope this helps
yes i was talking about same year but different month/days. : )
1 Answer
- TheMadProfessorLv 71 decade agoFavorite Answer
I don't quite understand your question. Did you perhaps mean 'dates (as in month and day) that are the same but in different years'?
(Edit)
OK, I think I follow you now - you want rows from the same table (call it 'tab' with fields x, y, z and date) with a result set as you describe. This might get you somewhere in the ballpark (syntax for date function probably a bit off - don't have ref book handy)
select a.z, b.z, a.date, b.date from tab a, tab b
where a.x = b.x and a.y = b.y and a.z <> b.z and a.date <> b.date and year(a.date) = year(b.date)
