20个常用的动态性能视图字段描述
（1）v$sysstat
（2）v$sesstat
（3）v$sql & v$sql_plan
（4）v$sqltext & v$sqlarea
（5）v$session
（6）v$session_wait & v$session_event
（7）v$process
（8）v$lock & v$locked_object
（9）v$filestat
（10）v$session_longops
（11）v$latch & v$latch_children
（12）v$db_object_cache
（13）v$open_cursor
（14）v$parameter & v$system_parameter
（15）v$rollstat
（16）v$rowcache
（17）v$segstat & v$segment_statistics
（18）v$system_event
（19）v$undostat
（20）v$waitstat

SQL> desc v$sysstat
Name Null? Type
----------------------------------------- -------- ----------------------------
STATISTIC# NUMBER
NAME VARCHAR2(64)
CLASS NUMBER
VALUE NUMBER
STAT_ID NUMBER
CON_ID NUMBER

SQL> desc v$sesstat
Name Null? Type
----------------------------------------- -------- ----------------------------
SID NUMBER
STATISTIC# NUMBER
VALUE NUMBER
CON_ID NUMBER

SQL> desc v$sql;
Name Null? Type
----------------------------------------- -------- ----------------------------
SQL_TEXT VARCHAR2(1000)
SQL_FULLTEXT CLOB
SQL_ID VARCHAR2(13)
SHARABLE_MEM NUMBER
PERSISTENT_MEM NUMBER
RUNTIME_MEM NUMBER
SORTS NUMBER
LOADED_VERSIONS NUMBER
OPEN_VERSIONS NUMBER
USERS_OPENING NUMBER
FETCHES NUMBER
EXECUTIONS NUMBER
PX_SERVERS_EXECUTIONS NUMBER
END_OF_FETCH_COUNT NUMBER
USERS_EXECUTING NUMBER
LOADS NUMBER
FIRST_LOAD_TIME VARCHAR2(38)
INVALIDATIONS NUMBER
PARSE_CALLS NUMBER
DISK_READS NUMBER
DIRECT_WRITES NUMBER
DIRECT_READS NUMBER
BUFFER_GETS NUMBER
APPLICATION_WAIT_TIME NUMBER
CONCURRENCY_WAIT_TIME NUMBER
CLUSTER_WAIT_TIME NUMBER
USER_IO_WAIT_TIME NUMBER
PLSQL_EXEC_TIME NUMBER
JAVA_EXEC_TIME NUMBER
ROWS_PROCESSED NUMBER
COMMAND_TYPE NUMBER
OPTIMIZER_MODE VARCHAR2(10)
OPTIMIZER_COST NUMBER
OPTIMIZER_ENV RAW(2000)
OPTIMIZER_ENV_HASH_VALUE NUMBER
PARSING_USER_ID NUMBER
PARSING_SCHEMA_ID NUMBER
PARSING_SCHEMA_NAME VARCHAR2(128)
KEPT_VERSIONS NUMBER
ADDRESS RAW(8)
TYPE_CHK_HEAP RAW(8)
HASH_VALUE NUMBER
OLD_HASH_VALUE NUMBER
PLAN_HASH_VALUE NUMBER
FULL_PLAN_HASH_VALUE NUMBER
CHILD_NUMBER NUMBER
SERVICE VARCHAR2(64)
SERVICE_HASH NUMBER
MODULE VARCHAR2(64)
MODULE_HASH NUMBER
ACTION VARCHAR2(64)
ACTION_HASH NUMBER
SERIALIZABLE_ABORTS NUMBER
OUTLINE_CATEGORY VARCHAR2(64)
CPU_TIME NUMBER
ELAPSED_TIME NUMBER
OUTLINE_SID NUMBER
CHILD_ADDRESS RAW(8)
SQLTYPE NUMBER
REMOTE VARCHAR2(1)
OBJECT_STATUS VARCHAR2(19)
LITERAL_HASH_VALUE NUMBER
LAST_LOAD_TIME VARCHAR2(38)
IS_OBSOLETE VARCHAR2(1)
IS_BIND_SENSITIVE VARCHAR2(1)
IS_BIND_AWARE VARCHAR2(1)
IS_SHAREABLE VARCHAR2(1)
CHILD_LATCH NUMBER
SQL_PROFILE VARCHAR2(64)
SQL_PATCH VARCHAR2(128)
SQL_PLAN_BASELINE VARCHAR2(128)
PROGRAM_ID NUMBER
PROGRAM_LINE# NUMBER
EXACT_MATCHING_SIGNATURE NUMBER
FORCE_MATCHING_SIGNATURE NUMBER
LAST_ACTIVE_TIME DATE
BIND_DATA RAW(2000)
TYPECHECK_MEM NUMBER
IO_CELL_OFFLOAD_ELIGIBLE_BYTES NUMBER
IO_INTERCONNECT_BYTES NUMBER
PHYSICAL_READ_REQUESTS NUMBER
PHYSICAL_READ_BYTES NUMBER
PHYSICAL_WRITE_REQUESTS NUMBER
PHYSICAL_WRITE_BYTES NUMBER
OPTIMIZED_PHY_READ_REQUESTS NUMBER
LOCKED_TOTAL NUMBER
PINNED_TOTAL NUMBER
IO_CELL_UNCOMPRESSED_BYTES NUMBER
IO_CELL_OFFLOAD_RETURNED_BYTES NUMBER
CON_ID NUMBER
IS_REOPTIMIZABLE VARCHAR2(1)
IS_RESOLVED_ADAPTIVE_PLAN VARCHAR2(1)
IM_SCANS NUMBER
IM_SCAN_BYTES_UNCOMPRESSED NUMBER
IM_SCAN_BYTES_INMEMORY NUMBER
DDL_NO_INVALIDATE VARCHAR2(1)
IS_ROLLING_INVALID VARCHAR2(1)
IS_ROLLING_REFRESH_INVALID VARCHAR2(1)

SQL> desc v$sql_plan;
Name Null? Type
----------------------------------------- -------- ----------------------------
ADDRESS RAW(8)
HASH_VALUE NUMBER
SQL_ID VARCHAR2(13)
PLAN_HASH_VALUE NUMBER
FULL_PLAN_HASH_VALUE NUMBER
CHILD_ADDRESS RAW(8)
CHILD_NUMBER NUMBER
TIMESTAMP DATE
OPERATION VARCHAR2(60)
OPTIONS VARCHAR2(60)
OBJECT_NODE VARCHAR2(80)
OBJECT# NUMBER
OBJECT_OWNER VARCHAR2(128)
OBJECT_NAME VARCHAR2(128)
OBJECT_ALIAS VARCHAR2(261)
OBJECT_TYPE VARCHAR2(40)
OPTIMIZER VARCHAR2(40)
ID NUMBER
PARENT_ID NUMBER
DEPTH NUMBER
POSITION NUMBER
SEARCH_COLUMNS NUMBER
COST NUMBER
CARDINALITY NUMBER
BYTES NUMBER
OTHER_TAG VARCHAR2(70)
PARTITION_START VARCHAR2(128)
PARTITION_STOP VARCHAR2(128)
PARTITION_ID NUMBER
OTHER VARCHAR2(4000)
DISTRIBUTION VARCHAR2(40)
CPU_COST NUMBER
IO_COST NUMBER
TEMP_SPACE NUMBER
ACCESS_PREDICATES VARCHAR2(4000)
FILTER_PREDICATES VARCHAR2(4000)
PROJECTION VARCHAR2(4000)
TIME NUMBER
QBLOCK_NAME VARCHAR2(128)
REMARKS VARCHAR2(4000)
OTHER_XML CLOB
CON_ID NUMBER

SQL> desc v$sqltext;
Name Null? Type
----------------------------------------- -------- ----------------------------
ADDRESS RAW(8)
HASH_VALUE NUMBER
SQL_ID VARCHAR2(13)
COMMAND_TYPE NUMBER
PIECE NUMBER
SQL_TEXT VARCHAR2(64)
CON_ID NUMBER

SQL> desc v$sqlarea;
Name Null? Type
----------------------------------------- -------- ----------------------------
SQL_TEXT VARCHAR2(1000)
SQL_FULLTEXT CLOB
SQL_ID VARCHAR2(13)
SHARABLE_MEM NUMBER
PERSISTENT_MEM NUMBER
RUNTIME_MEM NUMBER
SORTS NUMBER
VERSION_COUNT NUMBER
LOADED_VERSIONS NUMBER
OPEN_VERSIONS NUMBER
USERS_OPENING NUMBER
FETCHES NUMBER
EXECUTIONS NUMBER
PX_SERVERS_EXECUTIONS NUMBER
END_OF_FETCH_COUNT NUMBER
USERS_EXECUTING NUMBER
LOADS NUMBER
FIRST_LOAD_TIME VARCHAR2(38)
INVALIDATIONS NUMBER
PARSE_CALLS NUMBER
DISK_READS NUMBER
DIRECT_WRITES NUMBER
DIRECT_READS NUMBER
BUFFER_GETS NUMBER
APPLICATION_WAIT_TIME NUMBER
CONCURRENCY_WAIT_TIME NUMBER
CLUSTER_WAIT_TIME NUMBER
USER_IO_WAIT_TIME NUMBER
PLSQL_EXEC_TIME NUMBER
JAVA_EXEC_TIME NUMBER
ROWS_PROCESSED NUMBER
COMMAND_TYPE NUMBER
OPTIMIZER_MODE VARCHAR2(10)
OPTIMIZER_COST NUMBER
OPTIMIZER_ENV RAW(2000)
OPTIMIZER_ENV_HASH_VALUE NUMBER
PARSING_USER_ID NUMBER
PARSING_SCHEMA_ID NUMBER
PARSING_SCHEMA_NAME VARCHAR2(128)
KEPT_VERSIONS NUMBER
ADDRESS RAW(8)
HASH_VALUE NUMBER
OLD_HASH_VALUE NUMBER
PLAN_HASH_VALUE NUMBER
FULL_PLAN_HASH_VALUE NUMBER
MODULE VARCHAR2(64)
MODULE_HASH NUMBER
ACTION VARCHAR2(64)
ACTION_HASH NUMBER
SERIALIZABLE_ABORTS NUMBER
OUTLINE_CATEGORY VARCHAR2(64)
CPU_TIME NUMBER
ELAPSED_TIME NUMBER
OUTLINE_SID VARCHAR2(40)
LAST_ACTIVE_CHILD_ADDRESS RAW(8)
REMOTE VARCHAR2(1)
OBJECT_STATUS VARCHAR2(19)
LITERAL_HASH_VALUE NUMBER
LAST_LOAD_TIME DATE
IS_OBSOLETE VARCHAR2(1)
IS_BIND_SENSITIVE VARCHAR2(1)
IS_BIND_AWARE VARCHAR2(1)
CHILD_LATCH NUMBER
SQL_PROFILE VARCHAR2(64)
SQL_PATCH VARCHAR2(128)
SQL_PLAN_BASELINE VARCHAR2(128)
PROGRAM_ID NUMBER
PROGRAM_LINE# NUMBER
EXACT_MATCHING_SIGNATURE NUMBER
FORCE_MATCHING_SIGNATURE NUMBER
LAST_ACTIVE_TIME DATE
BIND_DATA RAW(2000)
TYPECHECK_MEM NUMBER
IO_CELL_OFFLOAD_ELIGIBLE_BYTES NUMBER
IO_INTERCONNECT_BYTES NUMBER
PHYSICAL_READ_REQUESTS NUMBER
PHYSICAL_READ_BYTES NUMBER
PHYSICAL_WRITE_REQUESTS NUMBER
PHYSICAL_WRITE_BYTES NUMBER
OPTIMIZED_PHY_READ_REQUESTS NUMBER
LOCKED_TOTAL NUMBER
PINNED_TOTAL NUMBER
IO_CELL_UNCOMPRESSED_BYTES NUMBER
IO_CELL_OFFLOAD_RETURNED_BYTES NUMBER
CON_ID NUMBER
IS_REOPTIMIZABLE VARCHAR2(1)
IS_RESOLVED_ADAPTIVE_PLAN VARCHAR2(1)

SQL> desc v$session;
Name Null? Type
----------------------------------------- -------- ----------------------------
SADDR RAW(8)
SID NUMBER
SERIAL# NUMBER
AUDSID NUMBER
PADDR RAW(8)
USER# NUMBER
USERNAME VARCHAR2(128)
COMMAND NUMBER
OWNERID NUMBER
TADDR VARCHAR2(16)
LOCKWAIT VARCHAR2(16)
STATUS VARCHAR2(8)
SERVER VARCHAR2(9)
SCHEMA# NUMBER
SCHEMANAME VARCHAR2(128)
OSUSER VARCHAR2(128)
PROCESS VARCHAR2(24)
MACHINE VARCHAR2(64)
PORT NUMBER
TERMINAL VARCHAR2(30)
PROGRAM VARCHAR2(48)
TYPE VARCHAR2(10)
SQL_ADDRESS RAW(8)
SQL_HASH_VALUE NUMBER
SQL_ID VARCHAR2(13)
SQL_CHILD_NUMBER NUMBER
SQL_EXEC_START DATE
SQL_EXEC_ID NUMBER
PREV_SQL_ADDR RAW(8)
PREV_HASH_VALUE NUMBER
PREV_SQL_ID VARCHAR2(13)
PREV_CHILD_NUMBER NUMBER
PREV_EXEC_START DATE
PREV_EXEC_ID NUMBER
PLSQL_ENTRY_OBJECT_ID NUMBER
PLSQL_ENTRY_SUBPROGRAM_ID NUMBER
PLSQL_OBJECT_ID NUMBER
PLSQL_SUBPROGRAM_ID NUMBER
MODULE VARCHAR2(64)
MODULE_HASH NUMBER
ACTION VARCHAR2(64)
ACTION_HASH NUMBER
CLIENT_INFO VARCHAR2(64)
FIXED_TABLE_SEQUENCE NUMBER
ROW_WAIT_OBJ# NUMBER
ROW_WAIT_FILE# NUMBER
ROW_WAIT_BLOCK# NUMBER
ROW_WAIT_ROW# NUMBER
TOP_LEVEL_CALL# NUMBER
LOGON_TIME DATE
LAST_CALL_ET NUMBER
PDML_ENABLED VARCHAR2(3)
FAILOVER_TYPE VARCHAR2(13)
FAILOVER_METHOD VARCHAR2(10)
FAILED_OVER VARCHAR2(3)
RESOURCE_CONSUMER_GROUP VARCHAR2(32)
PDML_STATUS VARCHAR2(8)
PDDL_STATUS VARCHAR2(8)
PQ_STATUS VARCHAR2(8)
CURRENT_QUEUE_DURATION NUMBER
CLIENT_IDENTIFIER VARCHAR2(64)
BLOCKING_SESSION_STATUS VARCHAR2(11)
BLOCKING_INSTANCE NUMBER
BLOCKING_SESSION NUMBER
FINAL_BLOCKING_SESSION_STATUS VARCHAR2(11)
FINAL_BLOCKING_INSTANCE NUMBER
FINAL_BLOCKING_SESSION NUMBER
SEQ# NUMBER
EVENT# NUMBER
EVENT VARCHAR2(64)
P1TEXT VARCHAR2(64)
P1 NUMBER
P1RAW RAW(8)
P2TEXT VARCHAR2(64)
P2 NUMBER
P2RAW RAW(8)
P3TEXT VARCHAR2(64)
P3 NUMBER
P3RAW RAW(8)
WAIT_CLASS_ID NUMBER
WAIT_CLASS# NUMBER
WAIT_CLASS VARCHAR2(64)
WAIT_TIME NUMBER
SECONDS_IN_WAIT NUMBER
STATE VARCHAR2(19)
WAIT_TIME_MICRO NUMBER
TIME_REMAINING_MICRO NUMBER
TIME_SINCE_LAST_WAIT_MICRO NUMBER
SERVICE_NAME VARCHAR2(64)
SQL_TRACE VARCHAR2(8)
SQL_TRACE_WAITS VARCHAR2(5)
SQL_TRACE_BINDS VARCHAR2(5)
SQL_TRACE_PLAN_STATS VARCHAR2(10)
SESSION_EDITION_ID NUMBER
CREATOR_ADDR RAW(8)
CREATOR_SERIAL# NUMBER
ECID VARCHAR2(64)
SQL_TRANSLATION_PROFILE_ID NUMBER
PGA_TUNABLE_MEM NUMBER
SHARD_DDL_STATUS VARCHAR2(8)
CON_ID NUMBER
EXTERNAL_NAME VARCHAR2(1024)
PLSQL_DEBUGGER_CONNECTED VARCHAR2(5)

SQL> desc v$session_wait;
Name Null? Type
----------------------------------------- -------- ----------------------------
SID NUMBER
SEQ# NUMBER
EVENT VARCHAR2(64)
P1TEXT VARCHAR2(64)
P1 NUMBER
P1RAW RAW(8)
P2TEXT VARCHAR2(64)
P2 NUMBER
P2RAW RAW(8)
P3TEXT VARCHAR2(64)
P3 NUMBER
P3RAW RAW(8)
WAIT_CLASS_ID NUMBER
WAIT_CLASS# NUMBER
WAIT_CLASS VARCHAR2(64)
WAIT_TIME NUMBER
SECONDS_IN_WAIT NUMBER
STATE VARCHAR2(19)
WAIT_TIME_MICRO NUMBER
TIME_REMAINING_MICRO NUMBER
TIME_SINCE_LAST_WAIT_MICRO NUMBER
CON_ID NUMBER

SQL> desc v$session_event;
Name Null? Type
----------------------------------------- -------- ----------------------------
SID NUMBER
EVENT VARCHAR2(64)
TOTAL_WAITS NUMBER
TOTAL_TIMEOUTS NUMBER
TIME_WAITED NUMBER
AVERAGE_WAIT NUMBER
MAX_WAIT NUMBER
TIME_WAITED_MICRO NUMBER
EVENT_ID NUMBER
WAIT_CLASS_ID NUMBER
WAIT_CLASS# NUMBER
WAIT_CLASS VARCHAR2(64)
CON_ID NUMBER

SQL> desc v$process;
Name Null? Type
----------------------------------------- -------- ----------------------------
ADDR RAW(8)
PID NUMBER
SOSID VARCHAR2(24)
SPID VARCHAR2(24)
STID VARCHAR2(24)
EXECUTION_TYPE VARCHAR2(10)
PNAME VARCHAR2(5)
USERNAME VARCHAR2(15)
SERIAL# NUMBER
TERMINAL VARCHAR2(30)
PROGRAM VARCHAR2(48)
TRACEID VARCHAR2(255)
TRACEFILE VARCHAR2(513)
BACKGROUND VARCHAR2(1)
LATCHWAIT VARCHAR2(16)
LATCHSPIN VARCHAR2(16)
PGA_USED_MEM NUMBER
PGA_ALLOC_MEM NUMBER
PGA_FREEABLE_MEM NUMBER
PGA_MAX_MEM NUMBER
NUMA_DEFAULT NUMBER
NUMA_CURR NUMBER
CON_ID NUMBER

SQL> desc v$lock;
Name Null? Type
----------------------------------------- -------- ----------------------------
ADDR RAW(8)
KADDR RAW(8)
SID NUMBER
TYPE VARCHAR2(2)
ID1 NUMBER
ID2 NUMBER
LMODE NUMBER
REQUEST NUMBER
CTIME NUMBER
BLOCK NUMBER
CON_ID NUMBER

SQL> desc v$locked_object;
Name Null? Type
----------------------------------------- -------- ----------------------------
XIDUSN NUMBER
XIDSLOT NUMBER
XIDSQN NUMBER
OBJECT_ID NUMBER
SESSION_ID NUMBER
ORACLE_USERNAME VARCHAR2(128)
OS_USER_NAME VARCHAR2(128)
PROCESS VARCHAR2(24)
LOCKED_MODE NUMBER
CON_ID NUMBER

SQL> desc v$filestat;
Name Null? Type
----------------------------------------- -------- ----------------------------
FILE# NUMBER
PHYRDS NUMBER
PHYWRTS NUMBER
PHYBLKRD NUMBER
OPTIMIZED_PHYBLKRD NUMBER
PHYBLKWRT NUMBER
SINGLEBLKRDS NUMBER
READTIM NUMBER
WRITETIM NUMBER
SINGLEBLKRDTIM NUMBER
AVGIOTIM NUMBER
LSTIOTIM NUMBER
MINIOTIM NUMBER
MAXIORTM NUMBER
MAXIOWTM NUMBER
CON_ID NUMBER

SQL> desc v$session_longops;
Name Null? Type
----------------------------------------- -------- ----------------------------
SID NUMBER
SERIAL# NUMBER
OPNAME VARCHAR2(64)
TARGET VARCHAR2(260)
TARGET_DESC VARCHAR2(32)
SOFAR NUMBER
TOTALWORK NUMBER
UNITS VARCHAR2(32)
START_TIME DATE
LAST_UPDATE_TIME DATE
TIMESTAMP DATE
TIME_REMAINING NUMBER
ELAPSED_SECONDS NUMBER
CONTEXT NUMBER
MESSAGE VARCHAR2(512)
USERNAME VARCHAR2(128)
SQL_ADDRESS RAW(8)
SQL_HASH_VALUE NUMBER
SQL_ID VARCHAR2(13)
SQL_PLAN_HASH_VALUE NUMBER
SQL_EXEC_START DATE
SQL_EXEC_ID NUMBER
SQL_PLAN_LINE_ID NUMBER
SQL_PLAN_OPERATION VARCHAR2(30)
SQL_PLAN_OPTIONS VARCHAR2(30)
QCSID NUMBER
CON_ID NUMBER

SQL> desc v$latch
Name Null? Type
----------------------------------------- -------- ----------------------------
ADDR RAW(8)
LATCH# NUMBER
LEVEL# NUMBER
NAME VARCHAR2(64)
HASH NUMBER
GETS NUMBER
MISSES NUMBER
SLEEPS NUMBER
IMMEDIATE_GETS NUMBER
IMMEDIATE_MISSES NUMBER
WAITERS_WOKEN NUMBER
WAITS_HOLDING_LATCH NUMBER
SPIN_GETS NUMBER
SLEEP1 NUMBER
SLEEP2 NUMBER
SLEEP3 NUMBER
SLEEP4 NUMBER
SLEEP5 NUMBER
SLEEP6 NUMBER
SLEEP7 NUMBER
SLEEP8 NUMBER
SLEEP9 NUMBER
SLEEP10 NUMBER
SLEEP11 NUMBER
WAIT_TIME NUMBER
CON_ID NUMBER

SQL> desc v$latch_children;
Name Null? Type
----------------------------------------- -------- ----------------------------
ADDR RAW(8)
LATCH# NUMBER
CHILD# NUMBER
LEVEL# NUMBER
NAME VARCHAR2(64)
HASH NUMBER
GETS NUMBER
MISSES NUMBER
SLEEPS NUMBER
IMMEDIATE_GETS NUMBER
IMMEDIATE_MISSES NUMBER
WAITERS_WOKEN NUMBER
WAITS_HOLDING_LATCH NUMBER
SPIN_GETS NUMBER
SLEEP1 NUMBER
SLEEP2 NUMBER
SLEEP3 NUMBER
SLEEP4 NUMBER
SLEEP5 NUMBER
SLEEP6 NUMBER
SLEEP7 NUMBER
SLEEP8 NUMBER
SLEEP9 NUMBER
SLEEP10 NUMBER
SLEEP11 NUMBER
WAIT_TIME NUMBER
CON_ID NUMBER

SQL> desc v$db_object_cache;
Name Null? Type
----------------------------------------- -------- ----------------------------
OWNER VARCHAR2(128)
NAME VARCHAR2(1000)
DB_LINK VARCHAR2(64)
NAMESPACE VARCHAR2(128)
TYPE VARCHAR2(64)
SHARABLE_MEM NUMBER
LOADS NUMBER
EXECUTIONS NUMBER
LOCKS NUMBER
PINS NUMBER
KEPT VARCHAR2(3)
CHILD_LATCH NUMBER
INVALIDATIONS NUMBER
HASH_VALUE NUMBER
LOCK_MODE VARCHAR2(9)
PIN_MODE VARCHAR2(9)
STATUS VARCHAR2(19)
TIMESTAMP VARCHAR2(38)
PREVIOUS_TIMESTAMP VARCHAR2(38)
LOCKED_TOTAL NUMBER
PINNED_TOTAL NUMBER
PROPERTY VARCHAR2(80)
FULL_HASH_VALUE VARCHAR2(32)
CON_ID NUMBER
CON_NAME VARCHAR2(128)
ADDR RAW(8)
EDITION VARCHAR2(128)

SQL> desc v$open_cursor;
Name Null? Type
----------------------------------------- -------- ----------------------------
SADDR RAW(8)
SID NUMBER
USER_NAME VARCHAR2(128)
ADDRESS RAW(8)
HASH_VALUE NUMBER
SQL_ID VARCHAR2(13)
SQL_TEXT VARCHAR2(60)
LAST_SQL_ACTIVE_TIME DATE
SQL_EXEC_ID NUMBER
CURSOR_TYPE VARCHAR2(64)
CHILD_ADDRESS RAW(8)
CON_ID NUMBER

SQL> desc v$parameter;
Name Null? Type
----------------------------------------- -------- ----------------------------
NUM NUMBER
NAME VARCHAR2(80)
TYPE NUMBER
VALUE VARCHAR2(4000)
DISPLAY_VALUE VARCHAR2(4000)
DEFAULT_VALUE VARCHAR2(255)
ISDEFAULT VARCHAR2(9)
ISSES_MODIFIABLE VARCHAR2(5)
ISSYS_MODIFIABLE VARCHAR2(9)
ISPDB_MODIFIABLE VARCHAR2(5)
ISINSTANCE_MODIFIABLE VARCHAR2(5)
ISMODIFIED VARCHAR2(10)
ISADJUSTED VARCHAR2(5)
ISDEPRECATED VARCHAR2(5)
ISBASIC VARCHAR2(5)
DESCRIPTION VARCHAR2(255)
UPDATE_COMMENT VARCHAR2(255)
HASH NUMBER
CON_ID NUMBER

SQL> desc v$system_parameter;
Name Null? Type
----------------------------------------- -------- ----------------------------
NUM NUMBER
NAME VARCHAR2(80)
TYPE NUMBER
VALUE VARCHAR2(4000)
DISPLAY_VALUE VARCHAR2(4000)
DEFAULT_VALUE VARCHAR2(255)
ISDEFAULT VARCHAR2(9)
ISSES_MODIFIABLE VARCHAR2(5)
ISSYS_MODIFIABLE VARCHAR2(9)
ISPDB_MODIFIABLE VARCHAR2(5)
ISINSTANCE_MODIFIABLE VARCHAR2(5)
ISMODIFIED VARCHAR2(8)
ISADJUSTED VARCHAR2(5)
ISDEPRECATED VARCHAR2(5)
ISBASIC VARCHAR2(5)
DESCRIPTION VARCHAR2(255)
UPDATE_COMMENT VARCHAR2(255)
HASH NUMBER
CON_ID NUMBER

SQL> desc v$rollstat;
Name Null? Type
----------------------------------------- -------- ----------------------------
USN NUMBER
LATCH NUMBER
EXTENTS NUMBER
RSSIZE NUMBER
WRITES NUMBER
XACTS NUMBER
GETS NUMBER
WAITS NUMBER
OPTSIZE NUMBER
HWMSIZE NUMBER
SHRINKS NUMBER
WRAPS NUMBER
EXTENDS NUMBER
AVESHRINK NUMBER
AVEACTIVE NUMBER
STATUS VARCHAR2(15)
CUREXT NUMBER
CURBLK NUMBER
CON_ID NUMBER

SQL> desc v$rowcache;
Name Null? Type
----------------------------------------- -------- ----------------------------
CACHE# NUMBER
TYPE VARCHAR2(11)
SUBORDINATE# NUMBER
PARAMETER VARCHAR2(32)
COUNT NUMBER
USAGE NUMBER
FIXED NUMBER
GETS NUMBER
FASTGETS NUMBER
GETMISSES NUMBER
SCANS NUMBER
SCANMISSES NUMBER
SCANCOMPLETES NUMBER
MODIFICATIONS NUMBER
FLUSHES NUMBER
DLM_REQUESTS NUMBER
DLM_CONFLICTS NUMBER
DLM_RELEASES NUMBER
CON_ID NUMBER

SQL> desc v$segstat;
Name Null? Type
----------------------------------------- -------- ----------------------------
TS# NUMBER
OBJ# NUMBER
DATAOBJ# NUMBER
STATISTIC_NAME VARCHAR2(64)
STATISTIC# NUMBER
VALUE NUMBER
CON_ID NUMBER

SQL> desc v$segment_statistics;
Name Null? Type
----------------------------------------- -------- ----------------------------
OWNER VARCHAR2(128)
OBJECT_NAME VARCHAR2(128)
SUBOBJECT_NAME VARCHAR2(128)
TABLESPACE_NAME VARCHAR2(30)
TS# NUMBER
OBJ# NUMBER
DATAOBJ# NUMBER
OBJECT_TYPE VARCHAR2(18)
STATISTIC_NAME VARCHAR2(64)
STATISTIC# NUMBER
VALUE NUMBER
CON_ID NUMBER

SQL> desc v$system_event;
Name Null? Type
----------------------------------------- -------- ----------------------------
EVENT VARCHAR2(64)
TOTAL_WAITS NUMBER
TOTAL_TIMEOUTS NUMBER
TIME_WAITED NUMBER
AVERAGE_WAIT NUMBER
TIME_WAITED_MICRO NUMBER
TOTAL_WAITS_FG NUMBER
TOTAL_TIMEOUTS_FG NUMBER
TIME_WAITED_FG NUMBER
AVERAGE_WAIT_FG NUMBER
TIME_WAITED_MICRO_FG NUMBER
EVENT_ID NUMBER
WAIT_CLASS_ID NUMBER
WAIT_CLASS# NUMBER
WAIT_CLASS VARCHAR2(64)
CON_ID NUMBER

SQL> desc v$undostat;
Name Null? Type
----------------------------------------- -------- ----------------------------
BEGIN_TIME DATE
END_TIME DATE
UNDOTSN NUMBER
UNDOBLKS NUMBER
TXNCOUNT NUMBER
MAXQUERYLEN NUMBER
MAXQUERYID VARCHAR2(13)
MAXCONCURRENCY NUMBER
UNXPSTEALCNT NUMBER
UNXPBLKRELCNT NUMBER
UNXPBLKREUCNT NUMBER
EXPSTEALCNT NUMBER
EXPBLKRELCNT NUMBER
EXPBLKREUCNT NUMBER
SSOLDERRCNT NUMBER
NOSPACEERRCNT NUMBER
ACTIVEBLKS NUMBER
UNEXPIREDBLKS NUMBER
EXPIREDBLKS NUMBER
TUNED_UNDORETENTION NUMBER
CON_ID NUMBER

SQL> desc v$waitstat;
Name Null? Type
----------------------------------------- -------- ----------------------------
CLASS VARCHAR2(18)
COUNT NUMBER
TIME NUMBER
CON_ID NUMBER