How to populate a database column with random numbers

Question

How do I populate a int column, currently empty, with random numbers with no duplicates?

Answer 1

If this is an existing table to which you added a new INT column, you can do something like this:

UPDATE MyTable
SET MyIntColumn = CONVERT(int, RAND(CHECKSUM(NEWID())) * 10000);

This will populate the empty column with random numbers between 1 and 10000.