Summarized records in access

[LauraForiero]

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I need to use summarized or group options for to solve these records
How do I summarize the total flying time of that grouping, in [No of flights]?? image is attached below

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[alansidman]

Look at this link for aggregate queries.

http://www.techonthenet.com/access/f...umeric/sum.php

Do you really want to group on all the fields shown?