Different ways to Transfer data from one database to another database

Hi all,
What are the ways to transfer data from one database to another database. With the following options, i Can transfer data as far as i know. Please
correct me if i am wrong or tell me if there is any other options are available.
1) Create database link/connection string and using this string and COPY command, we can transfer data.
2) By using Export and Import utilities.
I told first one to my interviewer, he told, its strange, by using, COPY command also can we transfer data ? As far as i know, we can transfer data. Am i right ?
Thanks in advance,
Pal

transfer data from one database to another database.You mean store the data of one to another?
1) Create database link/connection string and using this string and COPY command, we can transfer data.every SELECT on a DB-link is transfering data. And you can have all kind of transfers and store on the e.g CTAS of materialized views or.... the SQL*PLUS COPY :
The COPY command is not being enhanced to handle datatypes or features introduced with, or after Oracle8i. The COPY command is likely to be made obsolete in a future release.
But there are many others. Check for ORACLE Streams, and the "COPY" your interviewer was mentioning is about the operating file system COPY right? That's transportable tablespaces.
http://download.oracle.com/docs/cd/E11882_01/server.112/e17120/tspaces013.htm#ADMIN11403
-- andy

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Different ways to Transfer data from one database to another database

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