Break the LOCK which came from another session
Hello everyone,
Please help me solve this problem.
My problem is to break the lock shot Session S1, S2 Session.
I'm using the dbms_lock package functions.
Session " S1 " run these 2 statements:
DBMS_LOCK.allocate_unique (mon_contexte, handle);
status: = dbms_lock.request (handle, dbms_lock. (X_MODE, li_timeout);
"S1" can release his own lock:
DBMS_LOCK.allocate_unique (mon_contexte, handle);
status: = dbms_lock.release (handle);
But ' S2 ' cannot override " S1 " shot lock using the same function "dbms_lock.release". ==> OK!
My question is: session 'S2' how can I break the lock obtained by 'S1' no kill 'S1 '? (something like killing only the locking process)
Thanks in advance...
I'm not sure that understand the problem you are experiencing.
If I have a single receiver program that waits for 1 second and processes for 10 (treatment here is simulated by call dbms_lock.sleep), the receiver will be get signal when it then calls waitone.
declare l_msg varchar2(1000); l_status integer; begin dbms_alert.register( 'foo_alert' ); loop dbms_output.put_line( 'Started waiting at ' || to_char( sysdate, 'hh24:mi:ss' ) ); dbms_alert.waitone( 'foo_alert', l_msg, l_status, 1 ); if( l_status = 0 ) then dbms_output.put_line( 'Alert received: ' || l_msg ); exit; end if; dbms_output.put_line( 'Started sleeping at ' || to_char( sysdate, 'hh24:mi:ss' ) ); dbms_lock.sleep( 10 ); end loop; end;
If the session 1 runs this code and session 2 reports alert while 1 is in the call of dbms_lock.sleep
SQL> exec dbms_alert.signal( 'foo_alert', 'My message sent at ' || to_char( sysdate, 'hh24:mi:ss') ); PL/SQL procedure successfully completed. SQL> commit; Commit complete.
Session 2 will be notified of the signal when he returns the call to WAITONE. Note that the message has been sent 3 seconds after the first call to WAITONE had expired (and thus 3 seconds in the 'work' simulated by DBMS_LOCK. (SLEEP). The signal has been received once this piece of work was completed, and the loop went back to waiting on the alert.
SQL> ed Wrote file afiedt.buf 1 declare 2 l_msg varchar2(1000); 3 l_status integer; 4 begin 5 dbms_alert.register( 'foo_alert' ); 6 loop 7 dbms_output.put_line( 'Started waiting at ' || to_char( sysdate, 'hh24:mi:ss' ) ); 8 dbms_alert.waitone( 'foo_alert', l_msg, l_status, 1 ); 9 if( l_status = 0 ) 10 then 11 dbms_output.put_line( 'Alert received: ' || l_msg ); 12 exit; 13 end if; 14 dbms_output.put_line( 'Started sleeping at ' || to_char( sysdate, 'hh24:mi:ss' ) ); 15 dbms_lock.sleep( 10 ); 16 end loop; 17* end; SQL> / Started waiting at 18:07:45 Started sleeping at 18:07:46 Started waiting at 18:07:56 Alert received: My message sent at 18:07:49 PL/SQL procedure successfully completed.
Justin
Tags: Database
Similar Questions
-
Develooping app for Windows Store - writing and reading file: file came from another computer
I am developing an app Store Windows (XAML, c#) and I am writing a file to the user Documents folder. When writing is complete, the file is marked as «this file came from another computer and can be blocked to protect the computer» Of course, this isn't what I want - the file did not come from another computer. Subsequent attempts to read the file in the same application fail unless I have use Windows Explorer to unlock the file.
How can I write a file in a way that I don't let not blocked for the following readings?
I am developing an app Store Windows (XAML, c#) and I am writing a file to the user Documents folder. When writing is complete, the file is marked as «this file came from another computer and can be blocked to protect the computer» Of course, this isn't what I want - the file did not come from another computer. Subsequent attempts to read the file in the same application fail unless I have use Windows Explorer to unlock the file.
How can I write a file in a way that I don't let not blocked for the following readings?
Probably should be this announcement on the forums for developers (MSDN/Technet).
-
iOS 10 disable the lock screen camera
Is it possible to disable the lock screen camera? the people cannot take hundreds of pictures without you knowing? I know that you can disable the camera completely in the restrictions under settings, but surely there is an option to turn off?
Come on apple. the phone the most expensive on the market should see some support and quality service...
-
ICS: launch of the lock screen camera
Hello
The release notes for Ice Cream Sandwich say I should be able to launch the lock screen camera: but how do I do this...?
Thank you!
After pressing the unlock icon, the icon image widens, just drag to the left to the camera icon.
-
It is always used to be an indicator at the bottom of the screen (I think) that looked like a small lock, to show that you were in a secure session. What happened in Firefox V8?
Credit Safebrowser
Therefore, the lock is more part of Firefox; It has been removed from Firefox 4. The padlock shows that there is a secure connection, but does not provide any additional information. You could make a typographical error, and have always been connected to a secure connection. The lock was replaced in Firefox 3 with the Site identity button. Familiarize yourself with the Site identity button at the left end of the address bar:
https://www.mozilla.com/en-US/firefox/security/identity/ https://support.mozilla.com/en-US/kb/Site+Identity+Button http://www.dria.org/wordpress/archives/2008/05/06/635/
You can install this module if you want:
https://addons.mozilla.org/en-US/firefox/addon/padlock-icon/
-
With the help of an iPhone unlocked in the United States bought from another country
Hello. Anyone ever used an iPhone Unlocked, bought from another country with a SIM prepaid in the United States? Appreciate your answers. Thank you.
Yes. People have done. If you actually have a technical question, please ask. Polls and surveys are banned by Apple Support communities terms of use.
-
What is the best way to remove the symbols generated dynamically from another symbol?
in the onClick for 1 symbol handler, I have:
var sandwhichQty1 = sym.createChildSymbol ("sandQty1", "Stage");
another symbol inside the sandQty1 has the onClick method:
this.deleteSymbol ();
that works well, delete sandQty1. I would like to delete and others, another button, in which case users close this way.
I noticed that the id and class are assigned dynamically to the symbol of the child, which makes it difficult for me.
any ideas?
Hi, Lloydie-
What I would do in this situation is to save a reference to the object as a variable in the symbol on the creation, then reference the variable when you want to destroy.
So:
var foo = sym.createChildSymbol (blahblahblah);
sym.setVariable ("bar", foo);
In the other symbol (assuming the two symbol instances are at the same level with regard to step):
var foo = sym.getParentSymbol ().getSymbol("mySymbol").getVariable ("bar");
foo.deleteSymbol ();
Hope that helps,
-Elaine
-
My look of the iPad 2 came from Amazon without a sim card. who had to be like that?
The iPad delivered by Amazon has 'no sim' at the top of the screen. I guess that means that no sim card is contained in it. Its a new device, so Apple forgot to pack it or do I have to buy one from a cell phone provider separately?
Finally, I got my answer from Apple. Apple says that my dealer, Amazon, should not have sold me a cell iPad activated without SIMcard inside. Apple says that Amazon is supposed to check everything first. This seems odd because it came under vacuum from Amazon. I doubt that Amazon verifies each shipment of Apple products to be tested to see if they are functional. Apple says it was lack of Amazon that they sold me the product with pieces missing.
-
I'm pulling to the top of contacts from another e-mail account.
When you in my contact list, my girls from work e-mail contacts list.
Firefox is not a "list of contacts" - doesn't Firefox by e-mail.
If you use Firefox to access your e-mail, you use "webmail". You must seek assistance from your service provider or a forum for this service.
If your problem is with Mozilla Thunderbird, please Tag this thread as being for Thunderbird in the right column of this page. This issue is currently in the queue of Firefox to get answers.
-
I have set a 5 c water damaged iPhone and the need to find a way to get around activation lock to see if the phone works? I also sat on the phone for almost 2 months without contact, so I don't think that the owner will come back for her and wants to take full ownership of the phone.
You can not. The only method of circumvention is owned by Apple itself, and they open as the iPhone for you.
(138657)
-
Number of the page to start from another field
Hi all
I have a RTF model that shows a few bills. I have the invoice number and the page number that appear correctly. So if my report back 5 invoices I want for each bill page from 1 number. Currently, he does not like that.
Now as a result:
Invoice: has
Page NUM:1
Line: 1
Invoice: has
Page number: 2
Line 2
Invoice: B
Page NUM:3
Line 1
Can begin it of Bill B by Page number 1 instead of 3?
Kind regards
Stoyanov
Thank you for using for-each@section:G_INVOICE, instead of just for each.
This will reset the page numbers for each invoice.
Replace G_INVOICE with your actual bill group name.
-
Go to the State of the OSM, which is on another page
Hello
It is possible to navigate the State of particulat DCL, located on another page?
N °
-
PDF documents that are created on my PC look like the text has been reduced or the document is printed in legal format instead of the letter.
How to adjust the resulting PDF document to look at as it is printed on letter-size paper?
Hey, Bessie.
When you print to PDF it has an option to fit to Page. That switch off and you should not have more discounts.
-
Column of the datagrid to access from another column
Hello
Basically, I have 2 columns in a DataGrid, both with the checkbox itemRenderers.
When I check the first box, I want the second either activated = false. I'm stuck.
Thank you!
Normally, you need work on the data provider, because the converters element are recycled, and you get strange results if you do not work on the DP.
-
He was going to make a purchase online and noticed the lock which is usually in the lower right was not there, so is not entered my credit card information and did not purchase. How will I know if I am safe browsing/shopping if I don't see this lock? Thank you.
Padlock is therefore more part of Firefox; It has been removed from Firefox 4. The padlock shows that there is a secure connection, but does not provide any additional information. You could make a typographical error, and have always been connected to a secure connection. The lock was replaced in Firefox 3 with the Site identity button. Familiarize yourself with the Site identity button at the left end of the address bar:
- https://www.Mozilla.com/en-us/Firefox/security/identity/
- https://support.Mozilla.com/en-us/KB/site+identity+button
- http://www.dria.org/WordPress/archives/2008/05/06/635/
You can install this module if you want:
If this answer solved your problem, please click 'Solved It' next to this response when connected to the forum.
Not related to your question, but...
You may need to update some plug-ins. Check your plug-ins and update if necessary:
- Plugin check-> http://www.mozilla.org/en-US/plugincheck/
- Adobe Shockwave for Director Netscape plug-in: install (or update) the Shockwave with Firefox plugin
- Adobe PDF plugin for Firefox and Netscape: Installation/update Adobe Reader in Firefox
- Shockwave Flash (Adobe Flash or Flash): updated Flash in Firefox
- Next-generation Java plug-in for the Mozilla browser: install or update Java in Firefox
Maybe you are looking for
-
My id was blocked when I forgot my password and acquired by e-mail, finally I introduced him to new and agai. Thus my ID apple became block and I created a new id with the same e-mail address, now get by e-mail and password. But my iphone 4 does not
-
Hello! I just bought a laptop Tecra S3 from ebay.I turned it on a TI said "NTLDR is missing". Good I thing the guy who sold it has erased its data from the hard drive, no problem I'll install a new Windows XP.But... now the problem.When the laptop is
-
Can Satellite Pro M70-199 (PSM76E) - I upgrade the hardware
Satellite Pro M70-199: PSM76E How can I PUT it? (HW)
-
Is it possible to contact Lenovo for a real tracking updated status shipped via UPS? UPS and Lenovo show my laptop last leaving Alaska 7th March. I want to be sure, I'm as it claims to a signature for the delivery of the House. Any information would
-
I have an eMachine EL1200 with Windows XP Home Edition. Windows will not start
I went to start my computer yesterday morning and Windows wouldn't start up. He continues to go to a black screen saying that Windows has not started up. It gives me options to try: 1. safe Mode 2 safe Mode w / network 3 safe Mode w / command prompt