[Repost]List of X$ Tables

This is a summary list of X$ Table Definitions - Last revision was 7.3.2
The main purpose of this note is to show the naming conventions.

[K]ernel Layer
[2]-Phase Commit
[G]lobal [T]ransaction [E]ntry
X$K2GTE  - Current 2PC tx
X$K2GTE2 - Current 2PC tx
[C]ache Layer
[B]uffer Management
Buffer [H]ash
X$BH - Hash Table
Buffer LRU Statistics
X$KCBCBH - [C]urrent [B]uffers (buckets) - lru_statistics
X$KCBRBH - [R]ecent [B]uffers (buckets) - lru_extended
Buffer [WAIT]s
X$KCBWAIT  - Waits by block class
X$KCBFWAIT - Waits by File
[W]orking Sets - 7.3 or higher
X$KCBWDS - Set [D]escriptors
[C]ontrol File Management
[C]ontrol [F]ile List - 7.0.16 or higher
X$KCCCF - Control File Names & status
[D]atabase [I]nformation
X$KCCDI - Database Information
Data [F]iles
X$KCCFE - File [E]ntries ( from control file )
X$KCCFN - [F]ile [N]ames
[L]og Files
X$KCCLE - Log File [E]ntries
X$KCCLH - Log [H]istory ( archive entries )
Thread Information
X$KCCRT - [R]edo [T]hread Information
[F]ile Management
X$KCFIO - File [IO] Statistics
[L]ock Manager Component ( LCK )
[H]ash and Bucket Tables - 7.0.15 to 7.1.1, and 7.2.0 or higher
X$KCLFH - File [H]ash Table
X$KCLFI - File Bucket Table
X$LE - Lock [E]lements
X$LE_STAT - Lock Conversion [STAT]istics
X$KCLFX - Lock Element [F]ree list statistics - 7.3 or higher
X$KCLLS - Per LCK free list statistics - 7.3 or higher
X$KCLQN - [N]ame (hash) table statistics - 7.3 or higher
[R]edo Component
[M]edia recovery  - kcra.h - 7.3 or higher
X$KCRMF - [F]ile context
X$KCRMT - [T]hread context
X$KCRMX - Recovery Conte[X]t
[F]ile read
X$KCRFX - File Read Conte[X]t -  7.3 or higher
Reco[V]ery Component
[F]ile [H]eaders
X$KCVFH - All file headers
X$KCVFHMRR - Files with [M]edia [R]ecovery [R]equired
X$KCVFHONL - [ONL]ine File headers
[K]ompatibility Management - 7.1.1 or higher
X$KCKCE - [C]ompatibility Segment [E]ntries
X$KCKTY - Compatibility [TY]pes
X$KCKFM - Compatibility [F]or[M]ats ( index into X$KCKCE )
[D]ata Layer
Sequence [N]umber Component
X$KDNCE - Sequence [C]ache [E]ntries - 7.2 or lower
[S]equence Enqueues - common area for enqueue objects
X$KDNSSC - [C]ache Enqueue Objects - 7.2 or lower
X$KDNSSF - [F]lush Enqueue Objects - 7.2 or lower
X$KDNST - Cache [ST]atistics - 7.2 or lower
Inde[X] Block Component
X$KDXHS - Index [H]i[S]togram
X$KDXST - Index [ST]atistics
[G]eneric Layer
[H]eap Manager
X$KGHLU - State (summary) of [L]R[U] heap(s) - defined in ksmh.h
[I]nstantiation Manager
[C]ursor [C]ache
X$KGICC - Session statistics - defined in kqlf.h
X$KGICS - System wide statistics - defined in kqlf.h
[L]ibrary Cache Manager  ( defined and mapped from kqlf )
Bind Variables
X$KKSBV - Library Object [B]ind [V]ariables
Object Cache
X$KGLOB - All [OB]jects
X$KGLTABLE   - Filter for [TABLE]s
X$KGLBODY    - Filter for [BODY] ( packages )
X$KGLTRIGGER - Filter for [TRIGGER]s
X$KGLINDEX   - Filter for [INDEX]es
X$KGLCLUSTER - Filter for [CLUSTER]s
X$KGLCURSOR  - Filter for [CURSOR]s
Cache Dependency
X$KGLDP - Object [D]e[P]endency table
X$KGLRD - [R]ead only [D]ependency table - 7.3 or higher
Object Locks
X$KGLLK - Object [L]oc[K]s
Object Names
X$KGLNA - Object [NA]mes (sql text)
X$KGLNA1 - Object [NA]mes (sql text) with newlines - 7.2.0 or higher
Object Pins
X$KGLPN - Object [P]i[N]s
Cache Statistics
X$KGLST - Library cache [ST]atistics
Translation Table
X$KGLTR - Address [TR]anslation
Access Table
X$KGLXS - Object Access Table
Authorization Table - 7.1.5 or higher
X$KGLAU - Object Authorization table
Latch Cleanup - 7.0.15 or higher
X$KGLLC - [L]atch [C]leanup for Cache/Pin Latches
[K]ompile Layer
[S]hared Objects
X$KKSAI - Cursor [A]llocation [I]nformation - 7.3.2 or higher
[L]oader
[L]ibrary
X$KLLCNT - [C]o[NT]rol Statistics
X$KLLTAB - [TAB]le Statistics
[M]ulti-Threaded Layer
[C]ircuit component
X$KMCQS - Current [Q]ueue [S]tate
X$KMCVC - [V]irtual [C]ircuit state
[M]onitor Server/dispatcher
[D]ispatcher
X$KMMDI - [D]ispatcher [I]nfo (status)
X$KMMDP - [D]ispatcher Config ( [P]rotocol info )
[S]erver
X$KMMSI - [S]erver [I]nfo ( status )
X$KMMSG - [SG]a info ( global statistics)
X$KMMRD - [R]equest timing [D]istributions
s[Q]l Version and Option Layer
Kernel [V]ersions
X$VERSION - Library versions
Kernel [O]ptions - 7.1.3 or higher
X$OPTION - Server Options
[Q]uery Layer
[D]ictionary Cache Management
X$KQDPG - [PG]a row cache cursor statistics
[F]ixed Tables/views Management
X$KQFCO - Table [CO]lumn definitions
X$KQFDT - [D]erived [T]ables
X$KQFSZ - Kernel Data structure type [S]i[Z]es
X$KQFTA - Fixed [TA]bles
X$KQFVI - Fixed [VI]ews
X$KQFVT - [V]iew [T]ext definition - 7.2.0 or higher
[R]ow Cache Management
X$KQRST - Cache [ST]atistics
X$KQRPD - [P]arent Cache [D]efinition - 7.1.5 or higher
X$KQRSD - [S]ubordinate Cache [D]efinition - 7.1.5 or higher
[S]ervice Layer
[B]ackground Management
[D]etached Process
X$KSBDD - Detached Process [D]efinition (info)
X$KSBDP - Detached [P]rocess Descriptor (name)
X$MESSAGES - Background Message table
[I]nstance [M]anagement - 7.3 or higher
X$KSIMAT - Instance [AT]tributes
X$KSIMAV - [A]ttribute [V]alues for all instances
X$KSIMSI - [S]erial and [I]nstance numbers
[L]ock Management
[E]vent Waits
X$KSLED - Event [D]escriptors
X$KSLEI - [I]nstance wide statistics since startup
X$KSLES - Current [S]ession statistics
[L]atches
X$KSLLD - Latch [D]escriptor (name)
X$KSLLT - Latch statistics [ + Child latches @ 7.3 or higher ]
X$KSLLW - Latch context ( [W]here ) descriptors - 7.3 or higher
X$KSLPO - Latch [PO]st statistics - 7.3 or higher
X$KSLWSC- No[W]ait and [S]leep [C]ount stats by Context -7.3 or higher
[M]emory Management
[C]ontext areas
X$KSMCX - E[X]tended statistics on usage - 7.3.1 or lower
Heap Areas
X$KSMSP - SGA Hea[P]
X$KSMPP - [P]GA Hea[P] - 7.3.2 and above
X$KSMUP - [U]GA Hea[P] - 7.3.2 and above
X$KSMHP - Any [H]ea[P] - 7.3.2 and above
X$KSMSPR- [S]hared [P]ool [R]eserved List - 7.1.5 or higher
[L]east recently used shared pool chunks
X$KSMLRU - LR[U] flushes from the shared pool
[S]GA Objects
X$KSMSD - Size [D]efinition for Fixed/Variable summary
X$KSMSS - Statistics (lengths) of SGA objects
SGA [MEM]ory
X$KSMMEM - map of the entire SGA - 7.2.0 or higher
X$KSMFSV - Addresses of [F]ixed [S]GA [V]ariables - 7.2.1 or higher
[P]arameter Component
X$KSPPI  - [P]arameter [I]nfo ( Names )
X$KSPPCV - [C]urrent Session [V]alues - 7.3.2 or above
X$KSPPSV - [S]ystem [V]alues - 7.3.2 or above
En[Q]ueue Management
X$KSQDN - Global [D]atabase [N]ame
X$KSQEQ - [E]n[Q]ueue Object
X$KSQRS - Enqueue [R]e[S]ource
X$KSQST - Enqueue [S]tatistics by [T]ype
[U]ser Management
[C]ost
X$KSUCF - Cost [F]unction (resource limit)
[L]icence
X$KSULL - Licence [L]imits
[L]anguage Manager
X$NLS_PARAMETERS - NLS parameters
X$KSULV - NLS [V]alid Values - 7.1.2 or higher
[MY] [ST]atistics
X$KSUMYSTA - [MY] [ST]atisics (current session)
[P]rocess Info
X$KSUPL - Process (resource) [L]imits
X$KSUPRLAT - [LAT]ch Holder
X$KSUPR - Process object
[R]esource
X$KSURU - Resource [U]sage
[S]tatistics
X$KSUSD - [D]escriptors (statistic names)
X$KSUSGSTA - [G]lobal [ST]atistics
[SE]ssions
X$KSUSECST - Session status for events
X$KSUSESTA - Session [STA]tistics
X$KSUSECON - [CON]nection Authentication - 7.2.1 or higher
X$KSUSE - [SE]ssion Info
X$KSUSIO - [S]ystem [IO] statistics per session
[T]imer
X$KSUTM - Ti[M]e in 1/100th seconds
Instance [X]
X$KSUXSINST - [INST]ance state
[T]race management
X$TRACE - Current traced events
X$TRACES - All possible traces
X$KSTEX - Code [EX]ecution - 7.2.1 or higher
E[X]ecution Management
Device/Node [A]ffinity - 7.3.2 and above
X$KSXAFA - Current File/Node Affinity
[T]ransaction Layer
Table [A]ccess [D]efinition
X$KTADM - D[M]L lock
[C]ontrol Component
X$KTCXB - Transaction O[B]ject
[S]or[T] Segments - 7.3 or higher
X$KTSTSSD - [S]ort [S]egment [D]escriptor - per tablespace statistics
[T]ablespace
X$KTTVS - [V]alid [S]aveundo
[U]ndo
X$KTURD - Inuse [D]escriptors
X$KTUXE - Transaction [E]ntry (table) - 7.3.2 or above
Performance Layer [V] - 7.0.16 or higher
[I]nformation tables
X$KVII - [I]nitialisation Instance parameters
X$KVIS - [S]izes of structure elements
X$KVIT - [T]ransitory Instance parameters
Security Layer [Z]
[D]ictionary Component
X$KZDOS - [OS] roles
[S]ecurity State
X$KZSPR - Enabled [PR]ivileges
X$KZSRO - Enabled [RO]les
[R]emote Logins - 7.1.1 or higher
X$KZSRT - [R]emote Password File [T]able entries
E[X]ecution Layer
Parallel Query (Execute [F]ast) - 7.1.1 or higher
[P]rocess and Queue Manager
Statistics - 7.1.3 or higher
X$KXFPYS - S[YS]tem Statistics
X$KXFPDP - [D]etached [P]rocess (slave) statistics
X$KXFQSROW - Table [Q]ueue Statistics - 7.3.2 or higher
[C]oordinator Component
X$KXFPCST - Query [ST]atistics
X$KXFPCMS - [M]essage [S]tatistics
X$KXFPCDS - [D]equeue [S]tatistics
[S]lave Component
X$KXFPSST - Query [ST]atistics
X$KXFPSMS - [M]essage [S]tatistics
X$KXFPCDS - [D]equeue [S]tatistics
[S]hared Cursor
X$KXSBD - [B]ind [D]ata - 7.3.2 and above
X$KXSCC - SQL [C]ursor [C]ache Data - 7.3.2 and above
[N]etwork Layer - 7.0.15 or higher
Network [CO]nnections
X$UGANCO - Current [N]etwork [CO]nnections

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