Hi,


To find out more about the locking mechanism you can try the oracle
concepts manual

Jack


                                                                                       
                          
                    Helen rwulfjeq                                                     
                          
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Zanen/nlzanen1/External/MEY/NL)                  
                    Sent by:             Subject:     Re: What's lock/unlock mechnism  
                          
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                    28-06-2001                                                         
                          
                    21:40                                                              
                          
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Thank you very much for your response. But how oracle design let server to
handle locks. There are lots of overheads because lots of clients can
access server at a same time. If client handles individually, They will
release lots of overburden for server. And server just make sure that only
owner of lock can unlock CS. Anywhere we can find those information.


Thanks.


HL


  [EMAIL PROTECTED] wrote:

 Hi,


 All locking is handled by the server, not client


 Jack



 Helen rwulfjeq

 .com> cc: (bcc: Jack van Zanen/nlzanen1/External/MEY/NL)
 Sent by: Subject: What's lock/unlock mechnism
 [EMAIL PROTECTED]
 om


 28-06-2001
 00:09
 Please respond
 to ORACLE-L





 Hi ,





 Oracle database system uses very complicated lock/unlock design for
 readlock,writelock and row/recordlock etc..... Does anyone know
 lock/unlock
 is implemented both client like sqlplus and server side or just on server
 side or just client side. For instance, one user using sqlplus access
 database to update one record of table XX. So should be sqlplus's
 responsibility to lock this record based on row level of XX table? or
 serve! ! ! r is also involved in? Thanks.


 H.



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