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I've noticed some records where I have zero for the id of a foreign key.<br />
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I'd like a query which will tell me which records don't reference my main table.<br />
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My main table is called Pads, the primary key is PadID, the field with zero entries is AuthorID<br />
My Other table is Authors and the primary key is AuthorID.<br />
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So I want a list of Author Records where the AuthorID doesn't appear in the pads table.
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I've noticed some records where I have zero for the id of a foreign key.

I'd like a query which will tell me which records don't reference my main table.

My main table is called Pads, the primary key is PadID, the field with zero entries is AuthorID
My Other table is Authors and the primary key is AuthorID.

So I want a list of Author Records where the AuthorID doesn't appear in the pads table.

Need to select for missing referencial integrity

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