I am trying to create a query that updates a series of values in a table from one value to another. In the criteria field I have specified the value -1 and in the update to field I have specified "A". When I run the query however, the values do not get updated to the update value? I get an error message about lack of memory and the values do not get updated. I have inserted more RAM into the machine and this does not resolve the problem. I am attempting to update 100,000 rows???? Any ideas about how I could resolve this issue? Thanks