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Home » Eclipse Projects » Memory Analyzer » Query returns 0 results
Query returns 0 results [message #1816021] Thu, 17 October 2019 13:02 Go to next message
Richard Olson is currently offline Richard OlsonFriend
Messages: 4
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
Re: Query returns 0 results [message #1816421 is a reply to message #1816021] Tue, 29 October 2019 10:09 Go to previous messageGo to next message
Andrew Johnson is currently offline Andrew JohnsonFriend
Messages: 149
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.
Re: Query returns 0 results [message #1816720 is a reply to message #1816421] Tue, 05 November 2019 15:32 Go to previous message
Richard Olson is currently offline Richard OlsonFriend
Messages: 4
Registered: April 2010
Junior Member
Thanks Andrew, I ran the query suggested and see the expected results.
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