The DB version is 11.2.0.3. The real need is to find out LGWR switches on hourly basis. I can pull this information from the archive log view as well but I was curious to know if there was also a DB statistic available that can provide similar information. From: Jonathan Lewis [mailto:jonathan@xxxxxxxxxxxxxxxxxx] Sent: Thursday, September 25, 2014 4:14 PM To: Hameed, Amir; oracle-l@xxxxxxxxxxxxx Subject: RE: LGWR switching statistic Depends on what you're really trying to find and which version you're on. "background checkpoints started" might be what you need. Regards Jonathan Lewis http://jonathanlewis.wordpress.com @jloracle ________________________________ From: oracle-l-bounce@xxxxxxxxxxxxx<mailto:oracle-l-bounce@xxxxxxxxxxxxx> [oracle-l-bounce@xxxxxxxxxxxxx] on behalf of Hameed, Amir [Amir.Hameed@xxxxxxxxx] Sent: 25 September 2014 17:24 To: oracle-l@xxxxxxxxxxxxx<mailto:oracle-l@xxxxxxxxxxxxx> Subject: LGWR switching statistic Hi, Is there a database statistic available that can tell how many times LGWR switched redo log files? Thanks, Amir