I was wondering if there's anyone who can help me out here.
I have created an Access database with tables which have a due date (maintenance) field. Presently, the user updates this field when the maintenance has been carried out to indicate the new due date (say a month or a year down the line).
What I have been asked to do though is to make it so that the database automatically updates itself. I.e. when the due date is passed the field will update depending upon the criteria for the next due date. (I know this leads it open that if a task doesn't get done it'll get ignored but I have been told that this would not happen!)
So I thought I would do:
- A query on the field [Due Date]
- If/else criteria: [Due Date]+30 > date() (this is to prevent items which may be quite a bit out of date remaining out of date indefinitely)
- If [Due Date]+30 > date() then replace [Due date] with [Due Date]+30.
- If [Due Date]+30 <(=) date() then loop round until [Due Date]+30 > date() criteria is met
Is creating a query the right way to go? Since I'm sure I can't do this sort of thing with the table alone? Also, if I have multiple tables which each require a different criteria [Due Date]+x can this all be combined or do I need to write out seperate queries (since I know union queries cannot be used to modify data?)