| Oracle® Database Reference 10g Release 2 (10.2) Part Number B14237-03  | 
  | 
  | 
View PDF | 
DBA_FEATURE_USAGE_STATISTICS displays information about database feature usage statistics.
| Column | Datatype | NULL | Description | 
|---|---|---|---|
DBID | 
NUMBER | 
NOT NULL | 
Database identifier of the database being tracked | 
NAME | 
VARCHAR2(64) | 
NOT NULL | 
Name of the feature (See Table 4-1) | 
VERSION | 
VARCHAR2(17) | 
NOT NULL | 
Database version in which the feature was tracked | 
DETECTED_USAGES | 
NUMBER | 
NOT NULL | 
Number of times the system has detected usage for the feature | 
TOTAL_SAMPLES | 
NUMBER | 
NOT NULL | 
Number of times the system has woken up and checked for feature usage | 
CURRENTLY_USED | 
VARCHAR2(5) | 
Indicates whether usage was detected the last time the system checked (TRUE) or not (FALSE) | 
|
FIRST_USAGE_DATE | 
DATE | 
First sample time the system detected usage of the feature | |
LAST_USAGE_DATE | 
DATE | 
Last sample time the system detected usage of the feature | |
AUX_COUNT | 
NUMBER | 
This column stores feature-specific usage data in number format. | |
FEATURE_INFO | 
CLOB | 
This column stores feature-specific usage data in character format. | |
LAST_SAMPLE_DATE | 
DATE | 
Amount of time (in seconds) between the last two usage sample times | |
LAST_SAMPLE_PERIOD | 
NUMBER | 
Amount of time (in hours) between the last two usage sample times | |
SAMPLE_INTERVAL | 
NUMBER | 
Sample interval | |
DESCRIPTION | 
VARCHAR2(128) | 
Description of the feature and usage detection logic (See Table 4-1) | 
Table 4-1 DBA_FEATURE_USAGE_STATISTICS Statistics
| Name | Description | 
|---|---|
| 
 Advanced Replication  | 
 Advanced Replication has been enabled.  | 
| 
 Advanced Security  | 
 External Global users are configured.  | 
| 
 Audit Options  | 
 Audit options in use.  | 
| 
 Automatic Database Diagnostic Monitor  | 
 A task for the Automatic Database Diagnostic Monitor has been executed.  | 
| 
 Automatic Segment Space Management (system)  | 
 Extents of locally managed tablespaces are managed automatically by Oracle.  | 
| 
 Automatic Segment Space Management (user)  | 
 Extents of locally managed user tablespaces are managed automatically by Oracle.  | 
| 
 Automatic SQL Execution Memory  | 
 Sizing of work areas for all dedicated sessions (PGA) is automatic.  | 
| 
 Automatic Storage Manager  | 
 Automatic Storage Management has been enabled  | 
| 
 Automatic Undo Management  | 
 Oracle automatically manages undo data using an UNDO tablespace.  | 
| 
 Automatic Workload Repository  | 
 A manual Automatic Workload Repository (AWR) snapshot was taken in the last sample period.  | 
| 
 Change-Aware Incremental Backup  | 
 Track blocks that have changed in the database.  | 
| 
 Client Identifier  | 
 Application User Proxy Authentication: Client Identifier is used at this specific time.  | 
| 
 Data Guard  | 
 Data Guard, a set of services, is being used to create, maintain, manage, and monitor one or more standby databases.  | 
| 
 Data Guard Broker  | 
 Data Guard Broker, the framework that handles the creation maintenance, and monitoring of Data Guard, is being used  | 
| 
 Data Mining  | 
 Oracle Data Mining option is being used.  | 
| 
 Dynamic SGA  | 
 The Oracle SGA has been dynamically resized through an ALTER SYSTEM SET statement.  | 
| 
 File Mapping  | 
 File Mapping, the mechanism that shows a complete mapping of a file to logical volumes and physical devices, is being used.  | 
| 
 Flashback Database  | 
 Flashback Database, a rewind button for the database, is enabled  | 
| 
 Internode Parallel Execution  | 
 Internode Parallel Execution is being used.  | 
| 
 Label Security  | 
 Oracle Label Security, that enables label-based access control Oracle applications, is being used.  | 
| 
 Locally Managed Tablespaces (system)  | 
 There exists tablespaces that are locally managed in the database.  | 
| 
 Locally Managed Tablespaces (user)  | 
 There exists user tablespaces that are locally managed in the database.  | 
| 
 Messaging Gateway  | 
 Messaging Gateway, that enables communication between non-Oracle messaging systems and Advanced Queuing (AQ), link configured.  | 
| 
 MTTR Advisor  | 
 Mean Time to Recover Advisor is enabled.  | 
| 
 Multiple Block Sizes  | 
 Multiple Block Sizes are being used with this database.  | 
| 
 OLAP - Analytic Workspaces  | 
 OLAP - the analytic workspaces stored in the database.  | 
| 
 OLAP - Cubes  | 
 OLAP - number of cubes in the OLAP catalog that are fully mapped and accessible by the OLAP API.  | 
| 
 Oracle Managed Files  | 
 Database files are being managed by Oracle.  | 
| 
 Parallel SQL DDL Execution  | 
 Parallel SQL DDL Execution is being used.  | 
| 
 Parallel SQL DML Execution  | 
 Parallel SQL DML Execution is being used.  | 
| 
 Parallel SQL Query Execution  | 
 Parallel SQL Query Execution is being used.  | 
| 
 Partitioning (system)  | 
 Oracle Partitioning option is being used - there is at least one partitioned object created.  | 
| 
 Partitioning (user)  | 
 Oracle Partitioning option is being used - there is at least one user partitioned object created.  | 
| 
 PL/SQL Native Compilation  | 
 PL/SQL Native Compilation is being used - there is at least one natively compiled PL/SQL library unit in the database.  | 
| 
 Protection Mode - Maximum Availability  | 
 Data Guard configuration data protection mode is Maximum Availability.  | 
| 
 Protection Mode - Maximum Performance  | 
 Data Guard configuration data protection mode is Maximum Performance.  | 
| 
 Protection Mode - Maximum Protection  | 
 Data Guard configuration data protection mode is Maximum Protection.  | 
| 
 Protection Mode - Unprotected  | 
 Data Guard configuration data protection mode is Unprotected.  | 
| 
 Real Application Clusters (RAC)  | 
 Real Application Clusters (RAC) is configured.  | 
| 
 Recovery Area  | 
 The recovery area is configured.  | 
| 
 Recovery Manager (RMAN)  | 
 Recovery Manager (RMAN) is being used to backup the database.  | 
| 
 RMAN - Disk Backup  | 
 Recovery Manager (RMAN) is being used to backup the database to disk.  | 
| 
 RMAN - Tape Backup  | 
 Recovery Manager (RMAN) is being used to backup the database to tape.  | 
| 
 Resource Manager  | 
 Oracle Database Resource Manager is being used to control database resources.  | 
| 
 Segment Advisor  | 
 A task for Segment Advisor has been executed.  | 
| 
 Server Parameter File  | 
 The server parameter file (SPFILE) was used to startup the database.  | 
| 
 SGA/Memory Advisor  | 
 SGA/Memory Advisor has been used.  | 
| 
 Shared Server  | 
 The database is configured as Shared Server, where the server process can service multiple user processes.  | 
| 
 Spatial  | 
 There is at least one usage of the Oracle Spatial index metadata table.  | 
| 
 SQL Access Advisor  | 
 A task for SQL Access Advisor has been executed.  | 
| 
 SQL Tuning Advisor  | 
 SQL Tuning Advisor has been used.  | 
| 
 SQL Tuning Set  | 
 A SQL Tuning Set has been created in the database.  | 
| 
 Standby Archival - LGWR  | 
 Data Guard configuration: Remote archival is done by LGWR.  | 
| 
 Standby Archival - ARCH  | 
 Data Guard configuration: Remote archival is done by ARCH.  | 
| 
 Standby Transmission  | 
 Standby database: Network transmission mode was chosen for a standby destination.  | 
| 
 Streams (system)  | 
 Oracle Streams has been configured  | 
| 
 Streams (user)  | 
 Users have configured Oracle Streams  | 
| 
 Tablespace Advisor  | 
 Tablespace Advisor has been used.  | 
| 
 Transparent Gateway  | 
 Heterogeneous Connectivity, access to a non-Oracle system, has been configured.  | 
| 
 Undo Advisor  | 
 Undo Advisor has been used.  | 
| 
 Virtual Private Database (VPD)  | 
 Virtual Private Database (VPD) policies are being used.  |