This is a trade number we are given from an exchange, as you can see it's 18-digits: 819180418000200000
Now for some reason (to do with int64) our developers can't store that trade number directly in 1 field of a table in the database. hence it's broken into 2 and stored as 2 numbers, high & low:
My question is how do i get these 2 numbers (low & high) and convert it back into the original number? I'm not a developer so please try and explain as much as possible so i can take it to my developer.
Also it has to be in Visual Basic 6.
Hope i've explained my problem clearly. basically my developer doesn't know how to take the low number (-2035937983) + high number (190730303) and get the whole number (819180418000200000).
here's another example:
trade number: 819180416000200000