If you kill a session belonging to a background process you will cause an instance crash. Identify the offending session using the [G]V$SESSION and [G]V$PROCESS views as follows. The SID and SERIAL# values of the relevant session can then be substituted into the commands in the following sections.
Confidence votes 2.3K. They will be stored there forever until you delete them. Even after you delete them, they will stay stored on Facebook's servers for 30-60 days until they are finally permanently deleted by their servers.o answer/reply to a Facebook message all you need to do is go onto  the message you want to reply to. Under what you have been sent  there is a blank bar so type in your me â¦ ssage then on the right  click reply. + 26 others found this useful. Anthony Alves.
Delete Stored Chat Messages. Facebook stores your chat messages by default, but you don't have to keep them. You can delete messages permanently from the conversation history stored in Facebook Messages. Click the Actions button in the conversation toolbar and then select Delete Messages in the pull-down menu.acebook stores your chat messages by default, but you don't have to keep them. You can delete messages permanently from the conversation history stored in Facebook Messages.