Thanks for the reply.
The reason is I need to have a history. The number is a
job or post ID and the person can leave one position in
the company and start another. They therefore have to have
a new contract issued, but we want to keep track of any
previous positions that person has held. The way I have
set it up, employee no1 leaves post 10 and starts in post
20. They have a contract for post 10 which has a contract
number 5 which is now flagged as old contract,but the
details need to be kept and a new contract (number 6)is
issued. Does this make sense? Originally I had the current
post number on the contract and it was the link field, but
I found that when I issued a new contract, this number was
changed in the old contract. I therefore have to identify
the post ID number in the contracts table.
Dont know if this makes sense, but with this modification,
it works the way I want it. I am a bit of a novice and am
cutting my teeth on quite a complicated system, but am
learning all the time. Any suggestions are welcome!