Skip Headers
Oracle® Database Reference
11g Release 1 (11.1)

Part Number B28320-01
Go to Documentation Home
Home
Go to Book List
Book List
Go to Table of Contents
Contents
Go to Index
Index
Go to Master Index
Master Index
Go to Feedback page
Contact Us

Go to previous page
Previous
Go to next page
Next
View PDF

ALL_TAB_COL_STATISTICS

ALL_TAB_COL_STATISTICS provides column statistics and histogram information extracted from "ALL_TAB_COLUMNS".

Related Views

Column Datatype NULL Description
OWNER VARCHAR2(30)   Table owner
TABLE_NAME VARCHAR2(30)   Table name
COLUMN_NAME VARCHAR2(30)   Column name
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
LAST_ANALYZED DATE
Date on which this column was most recently analyzed
SAMPLE_SIZE NUMBER
Sample size used in analyzing this column
GLOBAL_STATS VARCHAR2(3)
For partitioned tables, indicates whether column statistics were collected for the table as a whole (YES) or were estimated from statistics on underlying partitions and 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