V$SQL_MONITOR
displays SQL statements whose execution have been (or are being) monitored by Oracle. An entry is created in V$SQL_MONITOR
every time the execution of a SQL statement is being monitored. SQL monitoring is automatically started when a SQL statement runs parallel or when it has consumed at least 5 seconds of CPU or I/O time.
When the SQL statement being monitored is executing, statistics in V$SQL_MONITOR
are generally refreshed in near real time, once every second. Once the execution ends, monitoring information is not deleted immediately. Instead, it is kept in V$SQL_MONITOR
for at least one minute. The entry will eventually be deleted to reclaim its space as new statements are monitored.
Column | Datatype | Description |
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Artificial join key to efficiently join |
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Unique ID of the XML report stored in Automatic Workload Repository (AWR) for this monitored entity |
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SQL execution status:
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User ID of the database user who issued the SQL being monitored |
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User name of the database user who issued the SQL being monitored |
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Name of the executing module when sampled, as set by the |
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Name of the executing action when sampled, as set by the |
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Service name of the user session |
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Client identifier from the user session |
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Client information for the user session |
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Name of the operating system program that issued the monitored SQL |
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Object ID of the top-most PL/SQL subprogram on the stack; NULL if there is no PL/SQL subprogram on the stack |
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Subprogram ID of the top-most PL/SQL subprogram on the stack; NULL if there is no PL/SQL subprogram on the stack |
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Object ID of the currently executing PL/SQL subprogram; NULL if executing SQL |
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Subprogram ID of the currently executing PL/SQL object; NULL if executing SQL |
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Time when monitoring of the SQL statement started, generally a few seconds after execution start time |
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Time when statistics in |
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Number of times |
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Database operation execution identifier for the current execution. If the type is SQL, the |
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Database operation name. If the type is SQL, the |
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Session identifier executing (or having executed) the SQL statement being monitored |
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Process name identifier executing (or having executed)the statement; |
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SQL identifier of the statement being monitored |
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Up to the first 2000 characters of the text of the SQL being monitored |
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Indicates whether the |
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Time when the execution started |
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Execution identifier. Together, the three columns |
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SQL plan hash value |
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Numeric representation of the complete SQL plan for this cursor. Comparing one |
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Signature calculated on the normalized SQL text. The normalization includes the removal of white space and the uppercasing of all non-literal strings. |
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Same as |
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Address of the child cursor (can be used with |
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Session serial number executing the statement being monitored |
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Indicates whether the SQL statement ran parallel across multiple instances ( |
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Maximum degree of parallelism for any plan operation executed on behalf of the monitored SQL |
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Number of database instances touched at the maximum degree of parallelism |
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Total number of parallel execution servers requested to execute the monitored SQL |
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Actual number of parallel execution servers allocated to execute the query |
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Logical parallel execution server process number executing (or having executed) the statement being monitored; NULL if this monitoring entry is not associated with an execution server. This is a logical number within the parallel server set (see |
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Logical parallel execution server group number to which |
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Number ( |
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Instance identifier where the parallel execution coordinator runs; NULL if |
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Session identifier for the parallel execution coordinator; NULL if |
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Error number encountered in case a SQL fails to execute successfully (for example, 932 in case of ORA-00932) |
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Error facility in case a SQL fails to execute successfully (for example, ORA in case of ORA-00932) |
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Detailed error message displayed corresponding to the error number and error facility when a SQL fails to execute successfully |
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Information about bind variables used with the SQL, such as name, position, value, data type, and so on (stored in XML format) |
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Additional information about SQL execution stored in XML format |
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Elapsed time (in microseconds); updated as the statement executes |
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Duration of time (in microseconds) spent by SQL in the statement queue |
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CPU time (in microseconds); updated as the statement executes |
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Number of fetches associated with the SQL statement; updated as the statement executes |
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Number of buffer get operations; updated as the statement executes |
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Number of disk reads; updated as the statement executes |
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Number of direct writes; updated as the statement executes |
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Number of I/O bytes exchanged between Oracle Database and the storage system |
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Number of physical read I/O requests issued by the monitored SQL |
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Number of bytes read from disks by the monitored SQL |
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Number of physical write I/O requests issued by the monitored SQL |
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Number of bytes written to disks by the monitored SQL |
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Application wait time (in microseconds); updated as the statement executes |
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Concurrency wait time (in microseconds); updated as the statement executes |
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Cluster wait time (in microseconds); updated as the statement executes |
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User I/O Wait Time (in microseconds); updated as the statement executes |
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PL/SQL execution time (in microseconds); updated as the statement executes |
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Java execution time (in microseconds); updated as the statement executes |
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The most recent action that was taken on this SQL operation by Resource Manager. Its value is one of the following:
For the last value, <CG NAME> is the name of the consumer group that the SQL operation was switched to. If the Resource Plan has since been changed then <CG NAME> is the ID of the consumer group. |
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The reason for the most recent action that was taken on this SQL operation by Resource Manager. Its value is one of the following:
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The time of the most recent action that was taken on this SQL operation by Resource Manager |
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The current consumer group for this SQL operation |
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The ID of the container to which the data pertains. Possible values include:
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Container name of the object. The value of this column is NULL in non-CDBs. |
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Execution context identifier (sent by Application Server) |
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Indicates whether the statistics are from an adaptive plan (Y) or not (N). |
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Indicates whether the statistics are from the final plan (Y) or not (N). |
See Also:
Oracle Database PL/SQL Packages and Types Reference for more information about the DBMS_APPLICATION_INFO.SET_MODULE
procedure
Oracle Database PL/SQL Packages and Types Reference for more information about the DBMS_APPLICATION_INFO.SET_ACTION
procedure