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Learning more about Oracle architecture

Exactly where is the data is stored? Is the table space a logical structure or physical structure of database? Also I want to know about the Oracle architecture.

These are long questions. To know more about Oracle's architecture, I highly recommend reading the Oracle documentation, particularly the Concepts Guide.

To know where data is stored, you have to query the Data Dictionary. The DBA_TABLES view will give you a list of tables in the database. It will also tell you which tablespace the table belongs to. The DBA_EXTENTS view will tell you which datafiles the tables a physically stored in, and the location in that datafile.

Tablespaces are logical structures of the database. The physical structures are datafiles. A tablespace is comprised of one or more datafiles. A datafile can belong to only one tablespace.


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