Prepare for Vista

Saw this excellent article in the Delphi newsgroups. It shows you how to get your Delphi applications ready for Windows Vista.

Unique Numbers

In my last job, each till transaction required a unique number, because all sales where collected from the tills databases and stored in main server database.

The problem was when you had independent tills in a couple of branches, how do you generate unique numbers.

Our final solution was to use the date and time, prefixed by the branch and till id. EG: 0123320061008160000

If you need more than one record per second, you can add milliseconds to the transaction ID.