Dan Waters
df.waters at comcast.net
Tue Jul 12 14:34:20 CDT 2011
>From Allen Brownes site: (http://allenbrowne.com/QueryPerfIssue.html) ------------------- This makes a major difference with Memo fields. If you GROUP BY a memo (Notes in the example), Access compares only the first 255 characters, and the rest are truncated! By choosing First instead of Group By, JET is free to return the entire memo field from the first match. So not only is it more efficient; it actually solves the the problem of memo fields being chopped off. (A downside of using First is that the fields are aliased, e.g. FirstOfNotes.) ------------------- Dan