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Oracle® Database Reference
10g Release 2 (10.2)

Part Number B14237-02
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ALL_PART_COL_STATISTICS

ALL_PART_COL_STATISTICS provides column statistics and histogram information for table partitions accessible to the current user.

Related Views

Column Datatype NULL Description
OWNER VARCHAR2(30) NOT NULL Owner of the partitioned table
TABLE_NAME VARCHAR2(30) NOT NULL Name of the table
PARTITION_NAME VARCHAR2(30)
Name of the table partition
COLUMN_NAME VARCHAR2(4000)   Name of the column
NUM_DISTINCT NUMBER
Number of distinct values in the column
LOW_VALUE RAW(32)
Low value in the column
HIGH_VALUE RAW(32)
High value in the column
DENSITY NUMBER
Density of the column
NUM_NULLS NUMBER
Number of nulls in the column
NUM_BUCKETS NUMBER
Number of buckets in histogram for the column
SAMPLE_SIZE NUMBER
Sample size used in analyzing this column
LAST_ANALYZED DATE
Date on which this column was most recently analyzed
GLOBAL_STATS VARCHAR2(3)
Indicates whether column statistics were collected for the partition as a whole (YES) or were estimated from statistics on underlying subpartitions (NO)
USER_STATS VARCHAR2(3)
Indicates whether statistics were entered directly by the user (YES) or not (NO)
AVG_COL_LEN NUMBER
Average length of the column (in bytes)
HISTOGRAM VARCHAR2(15)   Indicates existence/type of histogram:
  • NONE

  • FREQUENCY

  • HEIGHT BALANCED