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How to use a timestamp as key for your table

Title: How to use a timestamp as key for your table Question: A different way than to use or program a autoinc field. Answer: Sometimes autoinc fields are not convenient. A timestamp for a database key is a different solution. Here is a function that converts a string-timestamp into a longint - therefore it's ideal for the database-system: function DateTimeToLongInt: longint; begin Result := DateTimeToFileDate(Now); end;