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Oracle® Database Reference
11g Release 2 (11.2)

Part Number E10820-02
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ALL_LOB_PARTITIONS

ALL_LOB_PARTITIONS displays the LOB partitions in the tables accessible to the current user.

Related Views

Column Datatype NULL Description
TABLE_OWNER VARCHAR2(30)   Owner of the table
TABLE_NAME VARCHAR2(30)   Name of the table
COLUMN_NAME VARCHAR2(4000)   Name of the LOB column
LOB_NAME VARCHAR2(30)   Name of the partitioned LOB item
PARTITION_NAME VARCHAR2(30)   Name of the table partition
LOB_PARTITION_NAME VARCHAR2(30)   Name of the LOB data partition
LOB_INDPART_NAME VARCHAR2(30)   Name of the corresponding LOB index partition
PARTITION_POSITION NUMBER   Position of the LOB data partition within the LOB item
COMPOSITE VARCHAR2(3)   Indicates whether the partition is composite (YES) or not (NO)
CHUNK NUMBER   Value of the CHUNK attribute of the LOB data partition
PCTVERSION NUMBER   Value of the PCTVERSION attribute of the LOB data partition
CACHE VARCHAR2(10)   Indicates whether and how the LOB data is to be cached in the buffer cache:
  • YES - LOB data is placed in the buffer cache

  • NO - LOB data either is not brought into the buffer cache or is brought into the buffer cache and placed at the least recently used end of the LRU list

  • CACHEREADS - LOB data is brought into the buffer cache only during read operations but not during write operations

IN_ROW VARCHAR2(3)   Indicates whether the STORAGE IN ROW attribute is enabled for the LOB data partition (YES) or not (NO)
TABLESPACE_NAME VARCHAR2(30)   Name of the tablespace containing the LOB data partition
INITIAL_EXTENT VARCHAR2(40)   Size (in bytes) of the initial extent of the LOB data partition, or DEFAULT
NEXT_EXTENT VARCHAR2(40)   Size (in bytes) of secondary extents of the LOB data partition, or DEFAULT
MIN_EXTENTS VARCHAR2(40)   Minimum number of extents allowed in the segment of the LOB data partition, or DEFAULT
MAX_EXTENTS VARCHAR2(40)   Maximum number of extents allowed in the segment of the LOB data partition, or DEFAULT
MAX_SIZE VARCHAR2(40)   Maximum number of blocks allowed in the segment of the LOB data partition, or DEFAULT
RETENTION VARCHAR2(7)   Retention option for SECUREFILE segment:
  • NONE

  • AUTO

  • MIN

  • MAX

  • DEFAULT

MINRETENTION VARCHAR2(40)   Minimum retention duration for SECUREFILE segment, or DEFAULT
PCT_INCREASE VARCHAR2(40)   Percentage increase in extent size for the LOB data partition, or DEFAULT
FREELISTS VARCHAR2(40)   Number of process freelists allocated in the segment of the LOB data partition, or DEFAULT
FREELIST_GROUPS VARCHAR2(40)   Number of freelist groups allocated in the segment of the LOB data partition, or DEFAULT
LOGGING VARCHAR2(7)   Indicates whether or not changes to the LOB are logged:
  • NONE - Not specified

    See Also: the *_LOB_SUBPARTITIONS view

  • YES

  • NO

BUFFER_POOL VARCHAR2(7)   Default buffer pool for the LOB partition blocks:
  • DEFAULT

  • KEEP

  • RECYCLE

  • NULL

FLASH_CACHE VARCHAR2(7)   Default flash cache hint to be used for partition blocks:
  • DEFAULT

  • KEEP

  • NONE

Solaris functionality only.

CELL_FLASH_CACHE VARCHAR2(7)   Default cell flash cache hint to be used for partition blocks:
  • DEFAULT

  • KEEP

  • NONE

See Also: Oracle Exadata Storage Server Software documentation for more information

ENCRYPT VARCHAR2(4)   Indicates whether or not the LOB is encrypted:
  • YES

  • NO

  • NONE - Not applicable to BasicFile LOBs

COMPRESSION VARCHAR2(6)   Level of compression used for this LOB:
  • MEDIUM

  • HIGH

  • NO

  • NONE - Not applicable to BasicFile LOBs

DEDUPLICATION VARCHAR2(15)   Kind of deduplication used for this LOB:
  • LOB - Deduplicate

  • NO - Keep duplicates

  • NONE - Not applicable to BasicFile LOBs

SECUREFILE VARCHAR2(3)   Indicates whether the LOB is a SecureFile LOB (YES) or not (NO)
SEGMENT_CREATED VARCHAR2(3)   Indicates whether the LOB partition segment has been created (YES) or not (NO); N/A indicates that this LOB is subpartitioned and no segment exists at the partition level