| METRICS_NAME | VARCHAR2(64) |  | Metrics name | 
| WARNING_OPERATOR | VARCHAR2(12) |  | Relational operator for warning thresholds: 
GT
EQ
LT
LE
GE
CONTAINS
NE
DO NOT CHECK
DO_NOT_CHECK
 | 
| WARNING_VALUE | VARCHAR2(256) |  | Warning threshold value | 
| CRITICAL_OPERATOR | VARCHAR2(12) |  | Relational operator for critical thresholds: 
GT
EQ
LT
LE
GE
CONTAINS
NE
DO NOT CHECK
DO_NOT_CHECK
 | 
| CRITICAL_VALUE | VARCHAR2(256) |  | Critical threshold value | 
| OBSERVATION_PERIOD | NUMBER |  | Observation period length (in minutes) | 
| CONSECUTIVE_OCCURRENCES | NUMBER |  | Number of occurrences before an alert is issued | 
| INSTANCE_NAME | VARCHAR2(16) |  | Instance name; NULL for database-wide alerts | 
| OBJECT_TYPE | VARCHAR2(64) |  | Object type: 
SYSTEM
SERVICE
EVENT_CLASS
TABLESPACE
FILE
 | 
| OBJECT_NAME | VARCHAR2(513) |  | Name of the object for which the threshold is set | 
| STATUS | VARCHAR2(7) |  | Indicates whether the threshold is applicable on a valid object ( VALID) or not (INVALID) |