September 2000
Intermediate to advanced
418 pages
11h 5m
English
Content preview from Oracle SQL: the Essential Reference
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| LOB_Storage_Clause |
{LOB {(lob_item[,lob_item...]) STORE AS
([TABLESPACE tablespace]
[{ENABLE | DISABLE} STORAGE IN ROW]
[STORAGE Storage_Clause]
[CHUNK integer]
[PCTVERSION integer
[CACHE | NOCACHE [LOGGING | NOLOGGING]]
) |
LOB (lob_item) STORE AS [(lob_segname)]
[([TABLESPACE tablespace]
[{ENABLE | DISABLE} STORAGE IN ROW]
[STORAGE Storage_Clause]
[CHUNK integer]
[PCTVERSION integer
[CACHE | NOCACHE [LOGGING | NOLOGGING]]
]
|
Specifies storage parameters to be applied to LOB (Large OBject) data segments in a table, partition, or subpartition.
Keywords
LOB
Specifies that LOB storage parameters be provided for the listed LOB items. Any unlisted LOB item will use the same storage parameters as the table, partition, or subpartition. Note that Oracle automatically creates a system-managed index for each LOB item listed with this keyword.
STORE AS
The storage parameters to be applied immediately follow this keyword.
TABLESPACE
Specifies the name of the tablespace in which the LOB will be stored.
ENABLE STORAGE IN ROW
Specifies that the LOB data may be stored in the data row if its size is less than approximately 4000 bytes. This option is the default behavior.
DISABLE STORAGE IN ROW
Specifies that the LOB data is always stored outside the data row.
STORAGE
Specifies the storage parameters for the LOB segment. See Storage_Clause later in this chapter for details.
CHUNK
Specifies that integer bytes should be allocated for LOB manipulation. Note that integer will be rounded up to a multiple ...
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