I am trying to update the Org_SN field with the data from the [Serial Number] field based on the WHERE clause (MFG = N'GEM') AND (Model = N'TREK')) but I get
Msg 512, Level 16, State 1, Line 1
Subquery returned more than 1 value. This is not permitted when the subquery follows =, !=, <, <= , >, >= or when the subquery is used as an expression.
The statement has been terminated.
SET Org_SN =
SELECT [Serial Number]
WHERE (MFG = N'GEM') AND (Model = N'TREK'))
FROM AmcharNFA N