Question

Oracle Data Pipeline

Asked by: marper

What is the easiest way to do one time data refresh from an Oracle instance on server A to an instance on server B (Data, Users, Indexes, etc) ?

Both servers are on the same network.

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Asked On
2003-05-13 at 11:16:23ID20615099
Tags

oracle

,

pipeline

,

data

Topic

Oracle Database

Participating Experts
2
Points
100
Comments
10

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Answers

 

by: ttokerPosted on 2003-05-13 at 11:33:43ID: 8519154

export the data from server a using export utility, import it into server b using import utility

from the command prompt on server a:
exp username/password -- follow prompts choose users 2

put the dump file on server b, open up command prompt in server b:
imp username/password -- follow prompts

 

by: marperPosted on 2003-05-13 at 11:37:22ID: 8519183

I have data and table structure on server B already.
I just need to reresh it.
Will not the import utility try to re-create all that for me ?

 

by: ttokerPosted on 2003-05-13 at 12:11:11ID: 8519449

just do ignore create errors=y on import

 

by: marperPosted on 2003-05-13 at 12:41:18ID: 8519678

I have tables with data already but without an unique identification, thus if I do as you suggested, I will have duplicate rows, if they were already present in a table.
As I said in my original question, I am looking for the easiest way to refresh existing data.

 

by: ttokerPosted on 2003-05-13 at 13:41:03ID: 8520147

two ways:
1)you can take the export with a query, selecting only the data you need
2)you can create a dblink to instance a from b and insert with a select

 

by: ttokerPosted on 2003-05-13 at 13:42:58ID: 8520166

for new indexes, constraints and what not, you can do an import with import data=n and ignore=y and that will refresh the new objects

 

by: ttokerPosted on 2003-05-13 at 14:32:52ID: 8520700

for new indexes, constraints and what not, you can do an import with import data=n and ignore=y and that will refresh the new objects

 

by: asimkovskyPosted on 2003-05-13 at 16:55:25ID: 8521401

Why not just use transportable tablespaces.  Quick, easy, and less headaches.



Andrew

 

by: marperPosted on 2003-05-14 at 05:50:33ID: 8524092

how do you use transportable tablespaces?

 

by: ttokerPosted on 2003-05-14 at 07:03:27ID: 8524421

you basically carry tha data files for one instance to the other but i don t see how is that different from dropping the user and doing a full user import....transportable tablespaces are designed for transferring big data from one db to the other efficiently.  as i understand you want to refresh your database with new data from the other instance, the way to do it is incremental exports but since you don't have the option to do it for one time in this situation, i say drop the user and do a user level import, if the db is big then consider transportable tablespaces, if the new data is small create a db link and do inserts....

20120131-EE-VQP-002

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