Clarification of DSPFD output

["Kris Vaidyanathan" <krishnan@xxxxxxxxxxxxxx>]

When you do a DSPFD on a file on the there is some info that I need
clarification on.
I have a file that says the following..

Open Operations......................................77,875
Close Operations......................................77,875
Write Operations.......................................16,940
Update Operations....................................0
Delete Operations.....................................16,940
Logical Reads........................................513,079,190
Physical Reads......................................201,016,762


This is a highly volitile file used for passing trigger info around and I
understand the Open Closes and Write/Update/Delete numbers.
What do the Logical and Physical reads mean. This is an unkeyed physicalwith
no logicals etc.

krisV
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krishnan@ozemail.com.au
http://www.ozemail.com.au/~krishnan



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