Multiple choice technology databases

CREATE TABLESPACE user_data DATAFILE '/u01/oradata/user_data_01.dbf' SIZE 100M LOCALLY MANAGED UNIFORM SIZE 1M AUTOMATIC SEGMENT SPACE MANAGEMENT; Which part of the tablespace will be of a uniform size of 1 MB?

  1. Extent

  2. Segement

  3. Oracle block

  4. Operating system block
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A Correct answer
Explanation

In a locally managed tablespace with UNIFORM SIZE specified, the extent size is set uniformly. The UNIFORM SIZE 1M clause means each extent allocated in this tablespace will be exactly 1 MB. This is different from segments (which are logical objects like tables or indexes), Oracle blocks (the smallest I/O unit), or operating system blocks (file system level).

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