| Oracle® Database Reference 10g Release 1 (10.1) Part Number B10755-01 |
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| Oracle® Database Reference 10g Release 1 (10.1) Part Number B10755-01 |
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|
View PDF |
V$MAP_FILE_EXTENT contains a list of all file extent mapping structures in the shared memory of the instance.
| Column | Datatype | Description |
|---|---|---|
FILE_MAP_IDX |
NUMBER |
File index (corresponds to FILE_MAP_IDX in V$MAP_FILE) |
EXT_NUM |
NUMBER |
File extent number |
EXT_ELEM_OFF |
NUMBER |
Element offset in HKB |
EXT_SIZE |
NUMBER |
File extent size in HKB |
EXT_FILE_OFF |
NUMBER |
File Offset in HKB |
EXT_TYPE |
VARCHAR2(6) |
File Extent Type (DATA, PARITY, or NONE) |
ELEM_IDX |
NUMBER |
Index in V$MAP_ELEMENT corresponding to the element where the file extent resides |
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