V$SESSION

This view lists session information for each current session.

Column	Datatype	Description
SADDR	RAW(4)	Session address
SID	NUMBER	Session identifier
SERIAL#	NUMBER	Session serial number. Used to identify uniquely a session's objects. Guarantees that session-level commands are applied to the correct session objects if the session ends and another session begins with the same session ID.
AUDSID	NUMBER	Auditing session ID
PADDR	RAW(4)	Address of the process that owns this session
USER#	NUMBER	Oracle user identifier
USERNAME	VARCHAR2(30)	Oracle username
COMMAND	NUMBER	Command in progress (last statement parsed); for a list of values, see Table 3-3. These values also appear in the data dictionary view AUDIT_ACTIONS.
OWNERID	NUMBER	The column contents are invalid if the value is 2147483644. Otherwise, this column contains the identifier of the user who owns the migratable session. For operations using Parallel Slaves, interpret this value as a 4-byte value. The low-order 2 bytes of which represent the session number, and the high-order bytes the instance ID of the query coordinator.
TADDR	VARCHAR2(8)	Address of transaction state object
LOCKWAIT	VARCHAR2(8)	Address of lock waiting for; NULL if none
STATUS	VARCHAR2(8)	Status of the session: ACTIVE (currently executing SQL), INACTIVE, KILLED (marked to be killed), CACHED (temporarily cached for use by Oracle*XA), SNIPED (session inactive, waiting on the client)
SERVER	VARCHAR2(9)	Server type (DEDICATED| SHARED| PSEUDO| NONE)
SCHEMA#	NUMBER	Schema user identifier
SCHEMANAME	VARCHAR2(30)	Schema user name
OSUSER	VARCHAR2(30)	Operating system client user name
PROCESS	VARCHAR2(9)	Operating system client process ID
MACHINE	VARCHAR2(64)	Operating system machine name
TERMINAL	VARCHAR2(30)	Operating system terminal name
PROGRAM	VARCHAR2(48)	Operating system program name
TYPE	VARCHAR2(10)	Session type
SQL_ADDRESS	RAW(4)	Used with SQL_HASH_VALUE to identify the SQL statement that is currently being executed
SQL_HASH_VALUE	NUMBER	Used with SQL_ADDRESS to identify the SQL statement that is currently being executed
PREV_SQL_ADDR	RAW(4)	Used with PREV_HASH_VALUE to identify the last SQL statement executed
PREV_HASH_VALUE	NUMBER	Used with SQL_HASH_VALUE to identify the last SQL statement executed
MODULE	VARCHAR2(48)	Contains the name of the currently executing module as set by calling the DBMS_APPLICATION_INFO.SET_MODULE procedure
MODULE_HASH	NUMBER	The hash value of the above MODULE
ACTION	VARCHAR2(32)	Contains the name of the currently executing action as set by calling the DBMS_APPLICATION_INFO.SET_ACTION procedure
ACTION_HASH	NUMBER	The hash value of the above action name
CLIENT_INFO	VARCHAR2(64)	Information set by the DBMS_APPLICATION_INFO.SET_CLIENT_INFO procedure
FIXED_TABLE_SEQUENCE	NUMBER	This contains a number that increases every time the session completes a call to the database and there has been an intervening select from a dynamic performance table. This column can be used by performance monitors to monitor statistics in the database. Each time the performance monitor looks at the database, it only needs to look at sessions that are currently active or have a higher value in this column than the highest value that the performance monitor saw the last time. All the other sessions have been idle since the last time the performance monitor looked at the database.
ROW_WAIT_OBJ#	NUMBER	Object ID for the table containing the ROWID specified in ROW_WAIT_ROW#
ROW_WAIT_FILE#	NUMBER	Identifier for the datafile containing the ROWID specified in ROW_WAIT_ROW#. This column is valid only if the session is currently waiting for another transaction to commit and the value of ROW_WAIT_OBJ# is not -1.
ROW_WAIT_BLOCK#	NUMBER	Identifier for the block containing the ROWID specified in ROW_WAIT_ROW#. This column is valid only if the session is currently waiting for another transaction to commit and the value of ROW_WAIT_OBJ# is not -1.
ROW_WAIT_ROW#	NUMBER	The current ROWID being locked. This column is valid only if the session is currently waiting for another transaction to commit and the value of ROW_WAIT_OBJ# is not -1.
LOGON_TIME	DATE	Time of logon
LAST_CALL_ET	NUMBER	The last call
PDML_ENABLED	VARCHAR2(3)	This column has been replaced by column PDML_STATUS
FAILOVER_TYPE	VARCHAR2(13)	Indicates whether and to what extent transparent application failover (TAF) is enabled for the session: NONE - failover is disabled for this session SESSION - the client is able to fail over its session following a disconnect SELECT - the client is able to fail over queries in progress as well See Also: Oracle9i Database Concepts for more information on TAF Oracle9i Net Services Administrator's Guide for information on configuring TAF
FAILOVER_METHOD	VARCHAR2(10)	Indicates the transparent application failover method for the session: NONE - failover is disabled for this session BASIC - the client itself reconnects following a disconnect PRECONNECT - the backup instance can support all connections from every instance for which it is backup
FAILED_OVER	VARCHAR2(3)	Indicates (YES|NO) whether the session is running in failover mode and failover has occurred
RESOURCE_CONSUMER_GROUP	VARCHAR2(32)	Name of the session's current resource consumer group
PDML_STATUS	VARCHAR2(8)	If ENABLED, the session is in a PARALLEL DML enabled mode. If DISABLED, PARALLEL DML enabled mode is not supported for the session. If FORCED, the session has been altered to force PARALLEL DML.
PDDL_STATUS	VARCHAR2(8)	If ENABLED, the session is in a PARALLEL DDL enabled mode. If DISABLED, PARALLEL DDL enabled mode is not supported for the session. If FORCED, the session has been altered to force PARALLEL DDL.
PQ_STATUS	VARCHAR2(8)	If ENABLED, the session is in a PARALLEL QUERY enabled mode. If DISABLED, PARALLEL QUERY enabled mode is not supported for the session. If FORCED, the session has been altered to force PARALLEL QUERY.
CURRENT_QUEUE_DURATION	NUMBER	If queued (1), the current amount of time the session has been queued. If not currently queued, value is 0.
CLIENT_IDENTIFIER	VARCHAR2(64)

Table 3-3  Numbers Displayed in COMMAND Column of V$SESSION and Corresponding Commands

1: CREATE TABLE 2: INSERT 3: SELECT 4: CREATE CLUSTER 5: ALTER CLUSTER 6: UPDATE 7: DELETE 8: DROP CLUSTER 9: CREATE INDEX 10: DROP INDEX 11: ALTER INDEX 12: DROP TABLE 13: CREATE SEQUENCE 14: ALTER SEQUENCE 15: ALTER TABLE 16: DROP SEQUENCE 17: GRANT 18: REVOKE 19: CREATE SYNONYM 20: DROP SYNONYM 21: CREATE VIEW 22: DROP VIEW 23: VALIDATE INDEX 24: CREATE PROCEDURE 25: ALTER PROCEDURE 26: LOCK TABLE 27: NO OPERATION 28: RENAME 29: COMMENT 30: AUDIT

31: NOAUDIT 32: CREATE DATABASE LINK 33: DROP DATABASE LINK 34: CREATE DATABASE 35: ALTER DATABASE 36: CREATE ROLLBACK SEGMENT 37: ALTER ROLLBACK SEGMENT 38: DROP ROLLBACK SEGMENT 39: CREATE TABLESPACE 40: ALTER TABLESPACE 41: DROP TABLESPACE 42: ALTER SESSION 43: ALTER USE 44: COMMIT 45: ROLLBACK 46: SAVEPOINT 47: PL/SQL EXECUTE 48: SET TRANSACTION 49: ALTER SYSTEM SWITCH LOG 50: EXPLAIN 51: CREATE USER 25: CREATE ROLE 53: DROP USER 54: DROP ROLE 55: SET ROLE 56: CREATE SCHEMA 57: CREATE CONTROL FILE 58: ALTER TRACING 59: CREATE TRIGGER 60: ALTER TRIGGER

61: DROP TRIGGER 62: ANALYZE TABLE 63: ANALYZE INDEX 64: ANALYZE CLUSTER 65: CREATE PROFILE 66: DROP PROFILE 67: ALTER PROFILE 68: DROP PROCEDURE 69: DROP PROCEDURE 70: ALTER RESOURCE COST 71: CREATE SNAPSHOT LOG 72: ALTER SNAPSHOT LOG 73: DROP SNAPSHOT LOG 74: CREATE SNAPSHOT 75: ALTER SNAPSHOT 76: DROP SNAPSHOT 79: ALTER ROLE 85: TRUNCATE TABLE 86: TRUNCATE COUSTER 88: ALTER VIEW 91: CREATE FUNCTION 92: ALTER FUNCTION 93: DROP FUNCTION 94: CREATE PACKAGE 95: ALTER PACKAGE 96: DROP PACKAGE 97: CREATE PACKAGE BODY 98: ALTER PACKAGE BODY 99: DROP PACKAGE BODY