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Query returns 0 results [message #1816021]

Thu, 17 October 2019 13:02

Richard Olson

Messages: 25
Registered: April 2010

Junior Member

Good morning,

A simple query, select * from matrix.db.JPOSupport returns zero results. When entering the query the autofill finds the correct class, matrix.db.JPOSupport.

I can easily find the class object via Dominator, REGEX search. I'm just wondering why the query returns zero results. I used both MAT 1.8 and 1.9.

Thanks,
Rich

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Re: Query returns 0 results [message #1816421 is a reply to message #1816021]

Tue, 29 October 2019 10:09

Andrew Johnson

Messages: 205
Registered: July 2009

Senior Member

select * from matrix.db.JPOSupport

finds all the instances of that class. Does the class have any instances?

select * from objects matrix.db.JPOSupport

would find the actual class object.
See https://help.eclipse.org/2019-09/topic/org.eclipse.mat.ui.help/reference/oqlsyntaxfrom.html for more information about OQL.

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Re: Query returns 0 results [message #1816720 is a reply to message #1816421]

Tue, 05 November 2019 15:32

Richard Olson

Messages: 25
Registered: April 2010

Junior Member

Thanks Andrew, I ran the query suggested and see the expected results.

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