As far as I know, when you do 'update', you lock the record as exclusive so anyone else can't update the record that you're updating. Thus, commit or rollback need to be done to release the records although your updated is fail.
> -----Original Message----- > From: John Dunn [SMTP:[EMAIL PROTECTED]] > Sent: Wednesday, January 15, 2003 11:29 PM > To: Multiple recipients of list ORACLE-L > Subject: oracle locking question > > > > When doing an update that fails to update any rows, does a Rollback or a > > Commit need to be done at the end? > > > > We have a problem with some code where an update is attempted, but after > > the SQL command has run SQL%ROWCOUNT = 0 so no rows were updated. The > > program does not then perform a Commit or Rollback. This appears to be > > causing some locking problems, but how can any thing be locked if no > rows > > were updated? > > > Platform is 8.1.7 > -- > Please see the official ORACLE-L FAQ: http://www.orafaq.net > -- > Author: John Dunn > INET: [EMAIL PROTECTED] > > Fat City Network Services -- 858-538-5051 http://www.fatcity.com > San Diego, California -- Mailing list and web hosting services > --------------------------------------------------------------------- > To REMOVE yourself from this mailing list, send an E-Mail message > to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in > the message BODY, include a line containing: UNSUB ORACLE-L > (or the name of mailing list you want to be removed from). You may > also send the HELP command for other information (like subscribing). > -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Sony kristanto INET: [EMAIL PROTECTED] Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).