| SCN [message #175477] |
Fri, 02 June 2006 07:50  |
balavignesh
Messages: 180
Registered: March 2005
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Senior Member |
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Hi ,
can u plz let me explain what is SCN and unrecoverable SCN...?
Is SCN , system change number or system commit number...?
regards
bala
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| Re: SCN [message #175485 is a reply to message #175477] |
Fri, 02 June 2006 08:11  |
orausern
Messages: 826
Registered: December 2005
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Senior Member |
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to answer one of the questions:
it is system change number, not system commit number.
scn is an internal clock of the database. it represents a state of the database as of a particular moment(ie as of a particular scn). this is used for recovery and read consistance etc.
unrecoverable scn...i do not know.
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| Re: SCN [message #175542 is a reply to message #175486] |
Fri, 02 June 2006 13:06 |
Edward0
Messages: 6
Registered: June 2006
Location: China
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Junior Member |
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SCN is the time-line of the database, and it's an important in DATA-SYN,and it's also important in data block recovery.
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