This parameter specifies whether trace is enabled for both foreground and background processes.
| Version | Type | Default | Session Modifiable |
System Modifiable |
| 7.3.4 | Boolean | FALSE | No | No |
| 8.0.4 | Boolean | FALSE | No | No |
| 8.0.5 | Boolean | FALSE | No | No |
| 8.0.6 | Boolean | FALSE | No | No |
| 8.1.5 | Boolean | FALSE | No | No |
| 8.1.6 | Boolean | FALSE | No | No |
| 8.1.7 | Boolean | FALSE | No | No |
| 9.0.1 | Boolean | FALSE | No | Immediate |
| 9.2.0 | Boolean | FALSE | No | Immediate |
| 10.1.0 | Boolean | FALSE | No | Immediate |
| 10.2.0 | Boolean | FALSE | No | Immediate |
Note that this parameter enables Oracle internal trace; it does not enable event 10046 trace. Thanks to Irfan Hitay for the correction.