How to generate a transaction number?
- by 001
I was thinking of formatting it like this
TYYYYMMDDNNNNNNNNNNX
(1 character + 19 digits)
Where
T is type
YYYY is year
MM is month
DD is day
N is sequencial number
X is check digit
The problem is, how do I generate the sequencial number? since my primary key is not an auto increment integer value, if it was i would use that, but its not.
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