Default: There is no default
Purpose
Specifies the system change number (SCN) that Export will use to enable the Flashback Query utility.
Syntax and Description
FLASHBACK_SCN=scn_value
The export operation is performed with data that is consistent up to the specified SCN. If the NETWORK_LINK parameter is specified, then the SCN refers to the SCN of the source database.
Restrictions
FLASHBACK_SCN and FLASHBACK_TIME are mutually exclusive.
The FLASHBACK_SCN parameter pertains only to the Flashback Query capability of Oracle Database. It is not applicable to Flashback Database, Flashback Drop, or Flashback Data Archive.
Example
The following example assumes that an existing SCN value of 384632 exists. It exports the hr schema up to SCN 384632.
> expdp hr DIRECTORY=dpump_dir1 DUMPFILE=hr_scn.dmp FLASHBACK_SCN=384632
If you are on a logical standby system and using a network link to access the logical standby primary, then the FLASHBACK_SCN parameter is ignored because SCNs are selected by logical standby. See Oracle Data Guard Concepts and Administration for information about logical standby databases.