EXP/IMP Com o Banco Online

[vieriParticipante]

CONSISTENT=y

ele vai inciar a leitura das tabelas no mesmo horário…
com referência no mesmo horário.
o problema e que vc terá que ter uma estrutura de undo otimizada.

OBJECT_CONSISTENT=y
irá colocar os objetos em read only, ai sim lhe trará problemas em produção…

o help do export é ótimo… 😛

[oracle@admbi1 ~]$ exp help=y

Export: Release 10.2.0.3.0 – Production on Mon May 23 14:58:50 2011

Copyright (c) 1982, 2005, Oracle. All rights reserved.

You can let Export prompt you for parameters by entering the EXP
command followed by your username/password:

 Example: EXP SCOTT/TIGER

Or, you can control how Export runs by entering the EXP command followed
by various arguments. To specify parameters, you use keywords:

 Format:  EXP KEYWORD=value or KEYWORD=(value1,value2,...,valueN)
 Example: EXP SCOTT/TIGER GRANTS=Y TABLES=(EMP,DEPT,MGR)
           or TABLES=(T1:P1,T1:P2), if T1 is partitioned table

USERID must be the first parameter on the command line.

Keyword Description (Default) Keyword Description (Default)

USERID username/password FULL export entire file (N)
BUFFER size of data buffer OWNER list of owner usernames
FILE output files (EXPDAT.DMP) TABLES list of table names
COMPRESS import into one extent (Y) RECORDLENGTH length of IO record
GRANTS export grants (Y) INCTYPE incremental export type
INDEXES export indexes (Y) RECORD track incr. export (Y)
DIRECT direct path (N) TRIGGERS export triggers (Y)
LOG log file of screen output STATISTICS analyze objects (ESTIMATE)
ROWS export data rows (Y) PARFILE parameter filename
CONSISTENT cross-table consistency(N) CONSTRAINTS export constraints (Y)

OBJECT_CONSISTENT transaction set to read only during object export (N)
FEEDBACK display progress every x rows (0)
FILESIZE maximum size of each dump file
FLASHBACK_SCN SCN used to set session snapshot back to
FLASHBACK_TIME time used to get the SCN closest to the specified time
QUERY select clause used to export a subset of a table
RESUMABLE suspend when a space related error is encountered(N)
RESUMABLE_NAME text string used to identify resumable statement
RESUMABLE_TIMEOUT wait time for RESUMABLE
TTS_FULL_CHECK perform full or partial dependency check for TTS
VOLSIZE number of bytes to write to each tape volume
TABLESPACES list of tablespaces to export
TRANSPORT_TABLESPACE export transportable tablespace metadata (N)
TEMPLATE template name which invokes iAS mode export

Export terminated successfully without warnings.