B
Bwana
Guest
Hi, I've looked through the FAQ but can't find the answer to my question there. I'm sure I'm using the wrong search terms as this must be a common problem.
In its simplest form, I have a table with three columns (in actual fact it is a query result, but I don't think that matters) - one column with a date, one with a phone number, the last with a phone plan. I need to extract only those phone numbers that do NOT appear within the last 6 months with the same plan.
In real terms, if Joe Bloggs upgrades his phone plan within 6 months of his last upgrade the company doesn't get paid a bonus. Please help.
In its simplest form, I have a table with three columns (in actual fact it is a query result, but I don't think that matters) - one column with a date, one with a phone number, the last with a phone plan. I need to extract only those phone numbers that do NOT appear within the last 6 months with the same plan.
In real terms, if Joe Bloggs upgrades his phone plan within 6 months of his last upgrade the company doesn't get paid a bonus. Please help.