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Paul
Asked: 2009-06-20 10:53:10 +0800 CST

How to restore/import an Oracle database from dmp file?

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I've recently received the dump file of the soon to be migrated Oracle Database. I've installed Oracle 10g and now I need to restore the original database.

Can anyone give me a step by step procedure for how to restore it from the *.dmp file ?

database oracle oracle10g oracle-11g

4 Answers

  1. Best Answer

    It depends what you are trying to do but one short answer is:

    imp system/password@sid file=(filename) log=imp.log fromuser=(existing user) touser=(new user)

    The last 3 here: log, fromuser, touser are optional. You might give some more details about what you are doing if that doesn't help...

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  2. It depends on the type of export (dump) that was done from the original database. Oracle does four types of exports (called modes):

    1. Full
    2. User
    3. Table(s)
    4. Tablespace(s)

    Assuming that a Full export was done, you'd do something like:

    SET ORACLE_SID=dbsid
imp system/manager FULL=y FILE=database.dmp LOG=import.log STATISTICS=recalculate

    Having said that, you should read through the Oracle documentation on imp.

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  3. Keep in mind a .dmp file could mean it was exported using exp or expdp. Run imp help=y or impdp help=y if you run into any issues.

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  4. I usually only restore the schemas that I want:

    imp userid=SYSTEM/ART@cscdap1 fromuser=MDSBI touser=MDSBI grants=y indexes=y commit=y ignore=y buffer=10240000 file=MDSBI.dmp log=imp_MDSBI.log
imp userid=SYSTEM/ART@cscdap1 fromuser=MDS_GRS touser=MDS_GRS grants=y indexes=y commit=y ignore=y buffer=10240000 file=MDS_GRS.dmp log=imp_MDS_GRS.log
imp userid=SYSTEM/ART@cscdap1 fromuser=ODM touser=ODM grants=y indexes=y commit=y ignore=y buffer=10240000 file=ODM.dmp log=imp_ODM.log
imp userid=SYSTEM/ART@cscdap1 fromuser=ODIWORK touser=ODIWORK grants=y indexes=y commit=y ignore=y buffer=10240000 file=ODIWORK.dmp log=imp_ODIWORK.log
imp userid=SYSTEM/ART@cscdap1 fromuser=ODIMASTER touser=ODIMASTER grants=y indexes=y commit=y ignore=y buffer=10240000 file=ODIMASTER.dmp log=imp_ODIMASTER.log
imp userid=SYSTEM/ART@cscdap1 fromuser=EPADMRT touser=EPADMRT grants=y indexes=y commit=y ignore=y buffer=10240000 file=EPADMRT.dmp log=imp_EPADMRT.log
imp userid=SYSTEM/ART@cscdap1 fromuser=OEMUSER touser=OEMUSER grants=y indexes=y commit=y ignore=y buffer=10240000 file=OEMUSER.dmp log=imp_OEMUSER.log
imp userid=SYSTEM/ART@cscdap1 fromuser=HERNA236 touser=HERNA236 grants=y indexes=y commit=y ignore=y buffer=10240000 file=HERNA236.dmp log=imp_HERNA236.log
imp userid=SYSTEM/ART@cscdap1 fromuser=MAURYAKO touser=MAURYAKO grants=y indexes=y commit=y ignore=y buffer=10240000 file=MAURYAKO.dmp log=imp_MAURYAKO.log
imp userid=SYSTEM/ART@cscdap1 fromuser=SAWANTRO touser=SAWANTRO grants=y indexes=y commit=y ignore=y buffer=10240000 file=SAWANTRO.dmp log=imp_SAWANTRO.log
imp userid=SYSTEM/ART@cscdap1 fromuser=ABDERHOB touser=ABDERHOB grants=y indexes=y commit=y ignore=y buffer=10240000 file=ABDERHOB.dmp log=imp_ABDERHOB.log
imp userid=SYSTEM/ART@cscdap1 fromuser=CHECK_DB touser=CHECK_DB grants=y indexes=y commit=y ignore=y buffer=10240000 file=CHECK_DB.dmp log=imp_CHECK_DB.log
imp userid=SYSTEM/ART@cscdap1 fromuser=SABATAJA touser=SABATAJA grants=y indexes=y commit=y ignore=y buffer=10240000 file=SABATAJA.dmp log=imp_SABATAJA.log
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