I'm trying to do something in SQL (MSSQL7) and my brain is all fuzzy and I
can't think how to do it.

I've got 2 tables (table1, table2).
table1 has an id field (idfield1), a bunch of other fields and has
numerous records in it.
table2 has a field called idfield1 that contains an id from entries in
table1.
Multiple table2 records can have the same table1 id value in this field.
All table1 entries 'should' have one or more records in table2 with their
id value, yet for various historical reasons, there may be table1 entries
with no corresponding table2 entries.

What SQL can I use to get a set of records back that are all the table1
records that _don't_ have their id field in any table2 records?

Regards

Darren Tracey

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