No, because one invoice may contain several days all worked by the same employee. If Mrs X works on Monday, Tuesday, Friday and Saturday in one week, all of those shifts will go onto one timesheet, and therefore one invoice with the same number as the timesheet. I then use the invoice / timesheet number as the reference when paying that invoice via Barclays online banking, making it much easier to do my end of year accounts.
When I am checking bank statements and older invoices, I can easily find the information needed by searching for the invoice number. If there was a problem on a particular day, I can also very easily see who was working.
Wouldn't having each entry from one timesheet mean that each record would have to have many more fields to accommodate what could be seven shifts? Would that be what you would do?
I have been wondered whether an IF STATEMENT could be used?