DBA_HIGH_WATER_MARK_STATISTICS displays information about database high-watermark statistics.
| Column | Datatype | NULL | Description |
|---|---|---|---|
DBID |
NUMBER |
NOT NULL |
Identifier of the database for which the high-watermark statistics are tracked |
NAME |
VARCHAR2(64) |
NOT NULL |
Name of the high-watermark statistic (see Table 4-1) |
VERSION |
VARCHAR2(17) |
NOT NULL |
Database version in which the high watermarks were tracked |
HIGHWATER |
NUMBER |
Highest value of the statistic seen at sampling time | |
LAST_VALUE |
NUMBER |
Value of the statistic at the last sample time | |
DESCRIPTION |
VARCHAR2(128) |
Description of the high-watermark statistics (see Table 4-1) |
Table 4-1 DBA_HIGH_WATER_MARK_STATISTICS Statistics
| Name | Description |
|---|---|
|
ACTIVE_SESSIONS |
Maximum Number of Active Sessions seen in the system |
|
CPU_COUNT |
Maximum Number of CPUs |
|
DATAFILES |
Maximum Number of Datafiles |
|
DB_SIZE |
Maximum Size of the Database (Bytes) |
|
EXADATA_DISKS |
Number of physical disks |
|
INSTANCES |
Oracle Database instances |
|
PART_INDEXES |
Maximum Number of Partitions belonging to an User Index |
|
PART_TABLES |
Maximum Number of Partitions belonging to an User Table |
|
QUERY_LENGTH |
Maximum Query Length |
|
SEGMENT_SIZE |
Size of Largest Segment (Bytes) |
|
SESSIONS |
Maximum Number of Concurrent Sessions seen in the database |
|
SQL_NCHAR_COLUMNS |
Maximum Number of SQL NCHAR Columns |
|
TABLESPACES |
Maximum Number of Tablespaces |
|
USER_INDEXES |
Number of User Indexes |
|
USER_MV |
Maximum Number of Materialized Views (User) |
|
USER_TABLES |
Number of User Tables |