It is a typed dataset. Should I change my select statement to select all the columns?

>By chance, are you using typed datasets or untyped datasets? This error can occur if you use typed datasets and then modify the select statement to only include some of the columns.
>
>>All,
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>> I getting the message below when trying to fill a dataset. I am stumped, please help.
>>
>>"Failed to enable constraints. One or more rows contain values violating non-null, unique, or foreign-key constraints"