Question

I’m planning to make a simple helpdesk form. One of the attributes it needs is a unique number.

How can I create a unique identifier, starting with a string? Example: KL0001 and KL0002

It must be a number which is unique.

Answer 1

You could use a standard AutoNumber field to store the numerical portion, and then a separate Calculated column that formats the result prefixing “KL” and padding the AutoNumber field with the necessary zeros.

Example:

SELECT "KL" & Fmt(autonum_field, "0000") AS unique_identifier
FROM YourTable;