Query Months help

Posted by StealthRT on Stack Overflow See other posts from Stack Overflow or by StealthRT
Published on 2010-04-14T20:47:37Z Indexed on 2010/04/15 1:23 UTC
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Hey all i am in need of some helpful tips/advice on how to go about my problem. I have a database that houses a "signup" table. The date for this table is formated as such:

2010-04-03 00:00:00

Now suppose i have 10 records in this database:

2010-04-03 00:00:00
2010-01-01 00:00:00
2010-06-22 00:00:00
2010-02-08 00:00:00
2010-02-05 00:00:00
2010-03-08 00:00:00
2010-09-29 00:00:00
2010-11-16 00:00:00
2010-04-09 00:00:00
2010-05-21 00:00:00

And i wanted to get each months total registers... so following the example above:

Jan = 1
Feb = 2
Mar = 1
Apr = 2
May = 1
Jun = 1
Jul = 0
Aug = 0
Sep = 1
Oct = 0
Nov = 1
Dec = 0

Now how can i use a query to do that but not have to use a query like:

 WHERE left(date, 7) = '2010-01'

and keep doing that 12 times? I would like it to be a single query call and just have it place the months visits into a array like so:

 do until EOF
   theMonthArray[0] = "total for jan"
   theMonthArray[1] = "total for feb"
   theMonthArray[2] = "total for mar"
   theMonthArray[3] = "total for apr"
   ...etc
 loop

I just can not think of a way to do that other than the example i posted with the 12 query called-one for each month.

This is my query as of right now. Again, this only populates for one month where i am trying to populate all 12 months all at once.

 SELECT count(idNumber) as numVisits, theAccount, signUpDate, theActive
 from userinfo
 WHERE theActive = 'YES'
 AND idNumber = '0203'
 AND theAccount = 'SUB'
 AND left(signUpDate, 7) = '2010-04'
 GROUP BY idNumber
 ORDER BY numVisits;

The example query above outputs this:

 numVisits | theAccount | signUpDate          | theActive
 2           SUB          2010-04-16 00:00:00   YES

Which is correct because i have 2 records within the month of April.

But again, i am trying to do all 12 months at one time (in a single query) so i do not tax the database server as much when compared to doing 12 different query's...

UPDATE I'm looking to do something like along these lines:

 if NOT rst.EOF
    if left(rst("signUpDate"), 7) = "2010-01" then
        theMonthArray[0] = rst("numVisits")
    end if        

    if left(rst("signUpDate"), 7) = "2010-02" then
        theMonthArray[1] = rst("numVisits")
    end if
    etc etc....
 end if

Any help would be great! :)

David

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