Where the created table will be saved and in what format?

Hi,
Plz let me know , where the created tables in oracle 10g will be stored and what will be file format? and how to copy created tables from one system to another.
Regards

799707 wrote:
Hi,
Plz let me know , where the created tables in oracle 10g will be stored and what will be file format? and how to copy created tables from one system to another.
RegardsAn individual table is not stored in an individual file. Oracle is far more complex than that. Actually, even MS Access is more complex than that.
A table is a logical structure that is stored in a "tablespace". A tablespace is, itself, a logical structure that is made up of one or more data files. A given data file can belong to only one tablespace, but may not be the only file belonging to that tablespace. A tablespace can contain many, many tables, indexes, and or other segments. The physical realization of those segments (say, one of the tables) is in the form of data blocks, but if a tablespace has more than one file, the data blocks that make up a table may very well be scattered across all of the files in the tablespace. Even if the tablespace has only one file, the individual data blocks for a table will be scattered around that file - although groups of them will be logically contiguous, in allocation units known as "extents".
So, first you CREATE TABLESPACE, nameing one or more files to be created in support of that tablespace. Next you CREATE TABLE and specify the tablespace (NOT the data file) the table is to reside in. It is up to oracle internals to determine which blocks of the table go into which files ... and even where within those files.
Edited by: EdStevens on Oct 27, 2010 5:03 PM

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