If you’re wondering how to duplicate unique key World of Warcraft input to another machine, the answer is pretty simple: you can duplicate the keys on the other client on the same machine. If you use a local network, you can even duplicate keystrokes on multiple machines. Duplicating keystrokes is easy and requires no complicated setup. However, the process can be time-consuming, so you should use the best tool for the job.
Null values inserted into key fields
The issue of duplicate Unique Keys in World of Warcraft is caused by Null values being inserted into the fields. This happens for a number of reasons, one of which is the fact that World of Warcraft does not allow NULL values in these fields. First of all, NULL values are not allowed in the field of Unique Key, but they can be used in the composite column if necessary.
When creating a key field, you have to append ‘Unique’ to the field name. This is a good practice to make sure that you have the right value in the field. You can also add ‘Isnull’ as a keyword. This will allow you to avoid Null values in duplicate unique key fields. You can ignore the duplicate key handler if you do not want to change the value in the key field.