April 1999
Intermediate to advanced
584 pages
23h 17m
English
Content preview from Oracle Database Administration: The Essential RefeBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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INITIAL
The INITIAL parameter in the STORAGE clause determines how much space will be allocated to the first extent when an object is created. This parameter may be specified in bytes, kilobytes, or megabytes. For example, the following all specify the same amount of storage to be allocated to the INITIAL extent:
INITIAL 1048576 INITIAL 1024K INITIAL 1M
The default value for INITIAL is the INITIAL value established in the DEFAULT STORAGE for the tablespace in which the object is being created.
Tip
Extent sizes should be specified as integer multiples of the Oracle blocksize; otherwise, the allocation is rounded up to the next Oracle block. For example, with a 2K (2048) blocksize, a request for INITIAL 4097 results in three Oracle blocks being allocated.
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