您好,登錄后才能下訂單哦!
Column |
Datatype |
NULL |
Description |
OWNER |
VARCHAR2(30) |
|
Owner of the object
對象的owner |
TABLE_NAME |
VARCHAR2(30) |
|
Name of the table
表名 |
PARTITION_NAME |
VARCHAR2(30) |
|
Name of the partition
分區名 |
PARTITION_POSITION |
NUMBER |
|
Position of the partition within the table
分區在表中的位置 |
SUBPARTITION_NAME |
VARCHAR2(30) |
|
Name of the subpartition
子分區的名字 |
SUBPARTITION_POSITION |
NUMBER |
|
Position of the subpartition within the partition
子分區在表中的位置 |
OBJECT_TYPE |
VARCHAR2(12) |
|
Type of the object:
表的類型:
表
分區表
子分區表 |
NUM_ROWS |
NUMBER |
|
Number of rows in the object
表中有多少行記錄 |
BLOCKS |
NUMBER |
|
Number of used blocks in the object
表有多少塊 |
EMPTY_BLOCKS |
NUMBER |
|
Number of empty blocks in the object
表中空塊的數量 |
AVG_SPACE |
NUMBER |
|
Average available free space in the object
對象中可用的平均空閑空間 |
CHAIN_CNT |
NUMBER |
|
Number of chained rows in the object
表中發生行遷移或者行鏈接的數量 |
AVG_ROW_LEN |
NUMBER |
|
Average row length, including row overhead
平均行長度,包括行開銷 |
AVG_SPACE_FREELIST_BLOCKS |
NUMBER |
|
Average freespace of all blocks on a freelist
自由列表中所有塊的平均自由空間 |
NUM_FREELIST_BLOCKS |
NUMBER |
|
Number of blocks on the freelist
自由列表上的塊數 |
AVG_CACHED_BLOCKS |
NUMBER |
|
Average number of blocks in the buffer cache
緩沖區緩存中的平均塊數 |
AVG_CACHE_HIT_RATIO |
NUMBER |
|
Average cache hit ratio for the object
對象的平均緩存命中率 |
SAMPLE_SIZE |
NUMBER |
|
Sample size used in analyzing the table
分析表時的采樣比例 |
LAST_ANALYZED |
DATE |
|
Date of the most recent time the table was analyzed
最近一次分析表的時間 |
GLOBAL_STATS |
VARCHAR2(3) |
|
Indicates whether statistics were calculated without merging underlying partitions (YES) or not (NO)
作為一個整體(分區表)表的統計的是否準確表示是否被用戶統計信息 ( YES ) or ( NO ) |
USER_STATS |
VARCHAR2(3) |
|
Indicates whether statistics were entered directly by the user (
YES
) or not (
NO
)
表示是否被用戶統計信息 ( YES ) or ( NO ) |
STATTYPE_LOCKED |
VARCHAR2(5) |
|
Type of statistics lock:
統計信息的類型:
data
cache
all:表示統計信息被鎖定 |
STALE_STATS |
VARCHAR2(3) |
|
Indicates whether statistics for the object are stale (YES) or not (NO)
統計信息是否過期(yes 過期)或者(no 未過期) |
免責聲明:本站發布的內容(圖片、視頻和文字)以原創、轉載和分享為主,文章觀點不代表本網站立場,如果涉及侵權請聯系站長郵箱:is@yisu.com進行舉報,并提供相關證據,一經查實,將立刻刪除涉嫌侵權內容。