I'm designing an application that has a server running a webservice that
supplies a dataset through one method, and accepts changes through another.
The dataset supplied has a primary key on the only one table it contains.
Now, two clients, "A" and "B", request the dataset, here is how their table
looks (Identical).

CustomerID          FirstName
1                   Alpha
2                   Beta

Both “A” and “B” add a row. Since the primary key generated by the datasets
could be identical or irrelevant, how do I ensure that the database
generates a consistent primary key?

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