Dynamic Date Display

velcrobomb · March 31st, 2007, 12:12 AM

Hi all. I'm very new at sql so first I hope I'm posting in the right place. I'm using ms access until I hone my skills so here goes:

Each week a different member of my website contributes to our mp3 collection. I have a schedule that I made in javascript but I need to manually change it every week. What I would like to do is populate an access table with every Sunday date from now to 2008 and then create a query that will use the current date() and display who's week it is.
Is this possible?

I'm grappling with the DateAdd and DateDiff functions but I'm not a good enough programmer or I don't think programmatically enough to work out how to do this.

What I have now is:

Code:

SELECT tblRotaion.RotationWeek, tblRotaion.Member
FROM tblRotaion
WHERE (((tblRotaion.RotationWeek)<=Date()));

Which returns:

Code:

RotationWeek    Member

3/25/2007    Many
3/18/2007    Moe
3/11/2007    Jack

All I want to return however is the most recent Sunday not all Sundays in the past. Then next week, 4/1/07 will be a new person.

Thanks in advance.

happygv · April 2nd, 2007, 01:09 AM

Not sure if I understood that right. What is that you wanted to accomplish. Can you explain please?

_________________________
- Vijay G
Strive for Perfection

gbianchi · April 3rd, 2007, 08:20 AM

hi there..

little idea:

Code:

SELECT TOP 1 tblRotaion.RotationWeek, tblRotaion.Member
FROM tblRotaion
WHERE tblRotaion.RotationWeek<=Date()
ORDER BY tblRotaion.RotationWeek DESC;

that will return only 1 row...

HTH

Gonzalo

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happygv · April 3rd, 2007, 10:10 AM

You need to use the combination of DateAdd and DatePart funtions. Assuming your Week starts from Sunday, using Datepart find which day of the week you execute this statement, and reduce this number from current date to get to sunday's date. Thus you can query directly for EQUAL to recent Sunday's date. Somthing like this...

Code:

SELECT tblRotaion.RotationWeek, tblRotaion.Member
FROM tblRotaion
WHERE tblRotaion.RotationWeek = DateAdd(d, -DatePart(dw, Date()), Date())

Not sure how well the date functions are supported in MSAccess.

Hope that helps.
Cheers

_________________________
- Vijay G
Strive for Perfection