Question

I have a select query that joins 3 tables to display information. If I want to update a field is do

ADOQuery.Edit.
<Set fields Values>
ADOQuery.Post.

I get the following error howwever ‘Insufficient key column information for updating or refresing’ and I’m not sure how to proceed.

Thank you.

Pieter

Answer 1

Try this OnCreate:

YourADODataSet.Properties['Unique Table'].Value := 'YourTable';

This will let the Engine send only one (instead of two) query from joined tables.