A friend asks:

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When I fill my dataset I get this:

"Failed to enable constraints. One or more rows  contain values violating non-null, unique, or foreign-key  constraints."
As you can see, "one or more" is not very informative. How do I identify the criminal ?
Since the only solution I know is to go through each table and compare it's constraints,
Is there a more efficient way to solve this ?

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I'll admit this is one of the more annoying problems I've encountered when working with the Dataset object. 

And no - I don't know an easy way to find out who the culprit is. Do you? Please share in the comments.