Multiple running queries at the same time

Hi!
I looked around (and RTM) for this but didn't find anything, so I'm asking here.
I have quite a few long running queries (data loading and such things, warehousing stuff), and I need to be able to run multiple queries/statements at the same time. In TOAD I can do this, start a procedure and while it is running I can do SQL statements in another session tab (it supports threaded sessions - it starts queries in their own background thread/session).
When I start a long running procedure or query in SQL Developer I can not do anything until the procedure execution finishes. Is there any way (setting/preference) to enable SQL Developer to be able to run multiple queries at the same time?
I really would like to move away from TOAD, but this is a major showstopper for me.
Thanx for any tips.
Alex

Hi!
This post is going to be a little longer, but I have to clarify things out.
I did not mean to throw any wild accusations, because I did my fair share of RTFM and searching the help. I can tell you that if you put any of these in the help search box:
session
non shared
non-shared
connection
concurrent <- I guess this one should yeld something
multiple
spawn
you won't find anything usefull, the article that comes closest, is this:
"Sharing of Connections
By default, each connection in SQL Developer is shared when possible. For example, if you open a table in the Connections navigator and two SQL Worksheets using the same connection, all three panes use one shared connection to the database. In this example, a commit operation in one SQL Worksheet commits across all three panes. If you want a dedicated session, you must duplicate your connection and give it another name. Sessions are shared by name, not connection information, so this new connection will be kept separate from the original."
It does not mention any spawning of non-shared connections from the current one, nor it does mention using a accelerator key combo. But since there could be written something about it, I guess you could call it a documentation bug, because it does not provide any clue to this functionality. The help is definitely of no help in this case. As you can see, I do not throw accusations without trying to find out something first. I guess if someone is not as deep into SQL Developer as you are, there is no way for him/her to know this.
OK, I tried your suggestion, and (sadly) it does not work as I suppose it should.
Here's what I did:
- start a new connection, and enter the following code in SQL Worksheet:
declare
j number;
begin
for i in 1..1000000
LOOP
j := sin(i);
end LOOP;
end;
As you can see, it doesn't do much besides holding the connection busy for a while when executed.
- start a new non-shared connection from the first one using CTRL-SHIFT-N (as you suggested) and put the following statement in the new SQL Worksheet (with "__1" appended to connection name)
select sysdate from dual;
- go to the first SQL Worksheet and execute the procedure
- while the procedure is executing, go to the second SQL Worksheet and hit F9.
The sysdate is returned as soon as the first SQL Worksheet finishes and not any sooner. It may run in separate session, but the result is not returned before the other session is finished doing what it is doing. I guess the correct behaviour would be to return the sysdate immediately.
I verified this behaviour repeating it 3 times starting with a new instance of SQL Developer, each time connecting to another schema and spawning the new non-shared session. The database used was Oracle 10.2.0.3 EE on RHEL 4 UPD3.
The concurrent execution lacks concurrency. The statements might be executed concurently on the database (i did not went the extra mile to verfiy this), but the returning of results is just not independent of other sessions. To the end user this is as much concurrent as it is serial execution.
I hope developers get this issue straightened out soon, as I said, I'd love to move away from Toad, but I'll have to wait until they fix this out.
Is there anything else that can be done to make it behave correctly?
Kind regards
Alex

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Posted: Mar 18, 2011 2:30 PM - Madhu This is very urgent and critical.>
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