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7.156 V$DISPATCHER_RATE → V$DISPATCHER_RATE displays rate statistics for a number of activities performed by the dispatcher
5.3.6 Shared Server Data Dictionary Views → $DISPATCHER_CONFIG Provides configuration information about the dispatchers. V$DISPATCHER_RATE Provides rate … monitor performance. View Description V$DISPATCHER Provides information on the dispatcher processes … , including name, network address, status, various usage statistics, and index number. V … statistics
Identifying and Reducing Contention Using the Dispatcher-Specific Views → about dispatcher processes V$DISPATCHER_RATE: dispatcher processing statistics The V$DISPATCHER_RATE … dispatcher performance, query the V$DISPATCHER_RATE view and compare the current values with the maximums … maximums, then you might need to add more dispatchers. A general rule is
5.3.5 Disabling Shared Server → $QUEUE V$DISPATCHER V$DISPATCHER_RATE If these views indicate that the load on the dispatcher … MAX_DISPATCHERS parameter. Monitor the following views to determine the load on the dispatcher processes: V … dispatchers and so forth--query the V$DISPATCHER_CONFIG dynamic performance view. To see which
Contents → 7.156 V$DISPATCHER_RATE 7.157 V$DNFS_CHANNELS 7.158 V$DNFS_FILES 7.159 V$DNFS_SERVERS 7.160 V … USER_ZONEMAP_MEASURES 6.624 USER_ZONEMAPS Part III Dynamic Performance Views 7 Dynamic Performance (V … $) Views: V$ACCESS to V$HVMASTER_INFO
Monitoring Dispatchers → Use the following views to check configurations and monitor dispatchers: V$QUEUE: Contains … who have SELECT ANY TABLE system privilege, such as SYSTEM. V$DISPATCHER: Provides information about … index number. V$DISPATCHER_CONFIG: Provides configuration information about the dispatchers. V … $DISPATCHER_RATE:
Part V Distributed Database Management → You can manage a distributed database environment.
Part V Optimizer Statistics → The optimizer relies on statistics to create execution plans. This part contains the following chapters: Optimizer Statistics Concepts Histograms Managing Optimizer Statistics: Basic Topics Managing Optimizer Statistics: Advanced Topics
Identifying Bottlenecks with V$BACKUP_SYNC_IO and V$BACKUP_ASYNC_IO → You can use the V$BACKUP_SYNC_IO and V$BACKUP_ASYNC_IO views to determine the source of backup or … restore bottlenecks and to see detailed progress of backup jobs. V$BACKUP_SYNC_IO contains rows when … the I/O is synchronous to the process (or thread on some platforms) performing the backup. V … SQL*Plus and
Using the V$DB_CACHE_ADVICE View → The V$DB_CACHE_ADVICE view shows the simulated miss rates for a range of potential buffer cache … is not used if the number of buffers in a buffer pool is small to begin with. To use the V … workload on the database instance. Allow the workload to stabilize before querying the V … $DB_CACHE_ADVICE view. Query the V$DB_CACHE_ADVICE
8.132 V$QMON_COORDINATOR_STATS → V$QMON_COORDINATOR_STATS displays statistics of the non-sharded queue master process. There is one
7.135 V$DATABASE → V$DATABASE displays information about the database from the control file. Column Datatype … ARCHIVELOG_CHANGE# NUMBER Highest NEXT_CHANGE# (from the V$ARCHIVED_LOG view) for an archive log … command LAST_OPEN_INCARNATION# NUMBER Record number of the incarnation in V$DATABASE_INCARNATION that … media recovery and is always less
VARCHAR23 Indicates the status of the force full database caching feature in the database. Possible… → This column is available starting with Oracle Database 12 c Release 1 (126.96.36.199). See Also: \" DBA_SUPPLEMENTAL_LOGGING \" for more information about supplemental logging in a PDB
8.148 V$REQDIST → V$REQDIST lists statistics for the histogram of shared server dispatcher request times, divided
7.147 V$DB_TRANSPORTABLE_PLATFORM → V$DB_TRANSPORTABLE_PLATFORM displays all platforms to which the database can be transported using … same endian platform. Therefore, V$DB_TRANSPORTABLE_PLATFORM displays fewer rows than V … root n: Where n is the applicable container ID for the rows containing data See Also: \" V$TRANSPORTABLE_PLATFORM \"
8.41 V$LOG_HISTORY → V$LOG_HISTORY displays log history information from the control file. Column Datatype Description
8.5 V$INMEMORY_AREA → V$INMEMORY_AREA contains information on the space allocation inside the In-Memory area. The In … in the V$INMEMORY_AREA view. The relative size of the two pools is determined by internal … for the rows containing data See Also: \" INMEMORY_CLAUSE_DEFAULT \" \" V$IM_COLUMN_LEVEL \" \" V … $IM_SEGMENTS \" \" V$IM_USER_SEGMENTS
9.70 V$SQLFN_ARG_METADATA → V$SQLFN_ARG_METADATA contains metadata about function arguments. There is one row for each argument … of every function found in V$SQLFN_METADATA. There are no rows for functions that do not have any … column can be used to join with the V$SQLFN_METADATA view. ARGNUM NUMBER Argument number DATATYPE … that pertain to only the root
8.16 V$IOSTAT_FUNCTION → V$IOSTAT_FUNCTION displays disk I/O statistics for database functions (such as the LGWR and DBWR
7.44 V$ASM_ALIAS → In an Oracle Automatic Storage Management (Oracle ASM) instance, V$ASM_ALIAS displays one row for … number of the alias (foreign key to the V$ASM_DISKGROUP view) FILE_NUMBER NUMBER Oracle ASM file … number of the alias (foreign key to the V$ASM_FILE view) FILE_INCARNATION NUMBER Oracle ASM file