# 3409 UPDATE Statements Using Correlated Sub-Queries that Reference Outer Statement Columns Can Cause AV

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Calling an update statement with a row value constructor throws an AV if the field being retrieved from the source table does not exist, but DOES exist in the table being updated.

In the following query, OrderTable.CustGUID does exist but Customers.CustGUID does not. Changing the query to include the table identifier in the select statement or select a field that does not exist in either table results in the proper 700 field not found error being displayed.