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86 vFoglight

Web Component Guide

and you want to use another query to get an average of the rest of the data that are not in

the top N.

You would almost always use Order By when you use Filter Results Based on Top N.

Otherwise you would not know in which order the results would occur, and thus it

would not be clear which results would be included in the top N.

Order By

Order By keys control the sorting of the data objects returned by the query.

Note Sorting is applied before Filter Results Based on Top N is applied.

You can create multiple keys. Order By sorts on the first key, then on the second key,

and follows the sequence. Order By sorts only on a second key if the first key has data

objects in which the values were identical. In this case Order By sorts the data objects

containing those identical values based on the second key. This continues as further

keys are specified.

There are three types of views that can use the query's sort order: drop-downs, row-

oriented tables, and radio-buttons. As a result, sorting within a query is usually only

needed when Filter Results Based on Top N is also used.

Note Row-oriented tables also have their own sorting capabilities. If used, these settings override

the query's sort order.

If you are sorting on a metric property, such as cpuUsage under Hosts, the algorithm

automatically sorts on the metric's current/value property.

Adding an Order By Key

To add an Order By key:

Click the button under Order By.

A new set of input fields is added.

Select the Path from the drop-down tree.

Select ascending or descending.

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