Sybase 12.5.1, Руководство пользователя

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Adaptive Server Enterprise Monitor architecture
8
Historical Server
•
“Average for Session”
– this statistic type calculates an average value per
occurrence of an activity over the session. Only a few data items can use
this statistic type. The meaning of the returned value depends on the data
item. For example, Average for Session for Procedure Elapsed Time is the
average execution time per execution of a stored procedure during the
recording session.
Table B-3 on page 148 shows valid combinations of data items and statistic
types.