V$METRIC displays the most recent statistic values for the complete set of metrics captured by the AWR infrastructure.
| Column | Datatype | Description | 
|---|---|---|
| BEGIN_TIME | DATE | Begin time for the metric value | 
| END_TIME | DATE | End time for the metric value | 
| INTSIZE_CSEC | NUMBER | Size of the time period | 
| GROUP_ID | NUMBER | Metric Group ID. Refer to the V$METRICNAMEview for the name of the group. | 
| ENTITY_ID | NUMBER | Entity ID for the metric in question. The value of the Entity ID depends upon the metric group. (See the following table for an explanation of possible values.) | 
| ENTITY_SEQUENCE | NUMBER | Entity Sequence number for the metric in question. The value of the Entity Sequence depends upon the metric group. (See the following table for an explanation of possible values.) | 
| METRIC_ID | NUMBER | Metric ID | 
| METRIC_NAME | VARCHAR2(64) | Metric Name. This is the statistic that is captured for the entity. | 
| VALUE | NUMBER | Value of the statistic between BEGIN_TIMEandEND_TIME | 
| METRIC_UNIT | VARCHAR2(64) | Unit for the VALUE | 
The following table describes what the ENTITY_ID and ENTITY_SEQUENCE are for each metric group:
| GID | Group NAME | Entity ID | Entity Sequence | 
|---|---|---|---|
| 0 | Event Metrics | Event# | N/A | 
| 1 | Event Class Metrics | Wait Class ID | N/A | 
| 2 | System Metrics Long Duration | N/A | N/A | 
| 3 | System Metrics Short Duration | N/A | N/A | 
| 4 | Session Metrics Long Duration | Session ID | Serial# | 
| 5 | Session Metrics Short Duration | Session ID | Serial# | 
| 6 | Service Metrics | N/A | Service Hash | 
| 7 | File Metrics Long Duration | File# | Creation Change# | 
| 9 | Tablespace Metrics Long Duration | Tablespace# | N/A | 
| 10 | Service Metrics (Short) | N/A | Service Hash |