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|
Column |
Datatype |
NULL |
Description |
|
OWNER |
VARCHAR2(30) |
Owner of the object
对象的owner | |
|
TABLE_NAME |
VARCHAR2(30) |
Name of the table 表名 | |
|
PARTITION_NAME |
VARCHAR2(30) |
Name of the partition
分区名 | |
|
PARTITION_POSITION |
NUMBER |
Position of the partition within the table 分区在表中的位置 | |
|
SUBPARTITION_NAME |
VARCHAR2(30) |
Name of the subpartition
子分区的名字 | |
|
SUBPARTITION_POSITION |
NUMBER |
Position of the subpartition within the partition 子分区在表中的位置 | |
|
OBJECT_TYPE |
VARCHAR2(12) |
Type of the object:
表的类型： 表 分区表 子分区表 | |
|
NUM_ROWS |
NUMBER |
Number of rows in the object 表中有多少行记录 | |
|
BLOCKS |
NUMBER |
Number of used blocks in the object 表有多少块 | |
|
EMPTY_BLOCKS |
NUMBER |
Number of empty blocks in the object 表中空块的数量 | |
|
AVG_SPACE |
NUMBER |
Average available free space in the object 对象中可用的平均空闲空间 | |
|
CHAIN_CNT |
NUMBER |
Number of chained rows in the object 表中发生行迁移或者行链接的数量 | |
|
AVG_ROW_LEN |
NUMBER |
Average row length, including row overhead 平均行长度，包括行开销 | |
|
AVG_SPACE_FREELIST_BLOCKS |
NUMBER |
Average freespace of all blocks on a freelist 自由列表中所有块的平均自由空间 | |
|
NUM_FREELIST_BLOCKS |
NUMBER |
Number of blocks on the freelist 自由列表上的块数 | |
|
AVG_CACHED_BLOCKS |
NUMBER |
Average number of blocks in the buffer cache 缓冲区缓存中的平均块数 | |
|
AVG_CACHE_HIT_RATIO |
NUMBER |
Average cache hit ratio for the object 对象的平均缓存命中率 | |
|
SAMPLE_SIZE |
NUMBER |
Sample size used in analyzing the table 分析表时的采样比例 | |
|
LAST_ANALYZED |
DATE |
Date of the most recent time the table was analyzed 最近一次分析表的时间 | |
|
GLOBAL_STATS |
VARCHAR2(3) |
Indicates whether statistics were calculated without merging underlying partitions (YES) or not (NO) 作为一个整体（分区表）表的统计的是否准确表示是否被用户统计信息 ( YES ) or ( NO ) | |
|
USER_STATS |
VARCHAR2(3) |
Indicates whether statistics were entered directly by the user (
YES
) or not (
NO
) 表示是否被用户统计信息 ( YES ) or ( NO ) | |
|
STATTYPE_LOCKED |
VARCHAR2(5) |
Type of statistics lock:
统计信息的类型： data cache all：表示统计信息被锁定 | |
|
STALE_STATS |
VARCHAR2(3) |
Indicates whether statistics for the object are stale (YES) or not (NO) 统计信息是否过期（yes 过期）或者（no 未过期） |