数据库中ORA-600各个参数含义分析
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一. ORA-600 概述ORA-600 是一个非常头疼的一个错误。比如：
ORA-00600:internal error code, arguments: [4194], [43], [46], [], [], [], [], []
这个就是undo 损坏出现故障的一个提示信息。
二. 第一个参数说明在[ID 175982.1]文档上的定义分成了2种：
（1）the first parameter is a number which reflects the source componentor layer the error is connected with; or
（2）the first parameter is a mnemonic which indicates the source modulewhere the error originated. This type of internal error is now used inpreference to an internal error number.
2.1 Internal Errors Categorised by numberrange（数字类型）Thefollowing table provides an indication of internal error codes used in theOracle server. Thus, if ora-600[X] is encountered, it is possible to glean somehigh level background information : the error in generated in the Y layer whichindicates that there may be a problem with Z.
related components which are associated with in memory related activities in the SGA such as, for example : the management of Enqueues,
System Parameters, System state objects (these objects track the use of structures in the SGA by Oracle server processes), etc..
In the main, this layer provides support to allow process communication and provides support for locking and the management of structures to support multiple user processes connecting and interacting within the SGA.
Note : vos – Virtual Operating System provides features to support the functionality above. As the name suggests it provides base functionality in much the same way as is provided by an Operating System.
to check whether the error is repeatable and whether the error is perhaps associated with recovery or undo type operations; where
this is the case and the error is repeatable, this may suggest some kind of hardware or physical issue with a data file, control
file or log file. The Cache layer is responsible for making the changes to the underlying files and well as managing the related memory structures in the SGA.
Note :rcvindicates recovery. It is important to remember that the Oracle cache layer is effectively going through the same code paths as used by the recovery mechanism.
It is important to consider when the error occurred and the context in which the error was generated. If the error does not reproduce, it may be an in memory issue.
structures associated with the management of transactions. As with the cache layer , problems encountered in this layer may indicate some kind of issue at a physical level. Thus it is important to try and repeat the same steps to see if the problem recurs.
It is important to try and determine what the object involved in any reproducible problem is. Then
use the analyze command. For more information, please refer to the analyze command as detailed in the context ofNote 28814.1; in addition, it may be worth using the dbverify as discussed inNote 35512.1.
the data in the database tables and indexes. Issues in this area may indicate some kind of physical issue at the object level and
therefore, it is important to try and isolate the object and then perform an anlayze on the object to validate its structure.
Again, it is important to try and determine what the object involved in any reproducible problem is.
Then use the analyze command. For more information, please refer to the analyze command as detailed in the context ofNote 28814.1; in addition, it may be worth using the dbverify as discussed inNote 35512.1.
server. Problems generated by this layer usually indicate : some kind of presentation or format error in the data received by the
server, i.e. the client may have sent incomplete information; or there is some kind of issue which indicates that the data is received out of sequence
You should try and repeat the issue and with the use of sql trace , try and isolate where exactly the issue may be occurring within the application.
14000System Dependent Component internal error valuesThis layer manages interaction with the OS. Effectivelyit acts as the glue which allows the Oracle server to interact with the OS. The types of operation which this layer manages are indicated as follows.
security/logon
security/ldaplocal user access validation; challenge / response activity for
remote access validation; auditing operation; any activities associated with granting and revoking of privileges; validation of password with external password file15100dict/sqlddlthis component manages operations associated with creating, compiling (altering), renaming, invalidating, and dropping procedures, functions, and packages.15160optim/cbocost based optimizer layer is used to determine optimal path to the data based on statistical information available on the relevant tables and indexes.15190optim/cbocost based optimizer layer. Used in the generation of a new index to determine how the index should be created. Should it be constructed from the table data or from another index.15200dict/shrdcursused to in creating sharable context area associated with shared cursors15230dict/sqlddlmanages the compilation of triggers15260dict/dictlkup
dict/libcachedictionary lookup and library cache access15400server/drvmanages alter system and alter session operations15410progint/ifmanages compilation of pl/sql packages and procedures15500dict/dictlkupperforms dictionary lookup to ensure semantics are correct15550sqlexec/execsvc
sqlexec/rowsrchash join execution management;
parallel row source management15600sqlexec/pqcomponent provides support for Parallel Query operation15620repl/snapshotsmanages the creation of snapshot or materialized views as well as related snapshot / MV operations15640repl/defrdrpclayer containing various functions for examining the deferred transaction queue and retrieving information15660jobqs/jobqmanages the operation of the Job queue background processes15670sqlexec/pqcomponent provides support for Parallel Query operation15700sqlexec/pqcomponent provides support for Parallel Query operation; specifically mechanism for starting up and shutting down query slaves15800sqlexec/pqcomponent provides support for Parallel Query operation15810sqlexec/pqcomponent provides support for Parallel Query operation; specifically functions for creating mechanisms through which Query co-ordinator can communicate with PQ slaves;15820sqlexec/pqcomponent provides support for Parallel Query operation15850sqlexec/execsvccomponent provides support for the execution of SQL statements15860sqlexec/pqcomponent provides support for Parallel Query operation16000loadersql Loader direct load operation;16150loaderthis layer is used for ‘C’ level call outs to direct loader operation;16200dict/libcachethis is part of library Cache operation. Amongst other things it manages the dependency of SQL objects and tracks who is permitted to access these objects;16230dict/libcachethis component is responsible for managing access to remote objects as part of library Cache operation;16300mts/mtsthis component relates to MTS (Multi Threaded Server) operation16400dict/sqlddlthis layer contains functionality which allows tables to be loaded / truncated and their definitions to be modified. This is part of dictionary operation;16450dict/libcachethis layer layer provides support for multi-instance access to the library cache; this functionality is applicable therefore to OPS environments;16500dict/rowcachethis layer provides support to load / cache Oracle’s dictionary in memory in the library cache;16550sqlexec/fixedtabthis component maps data structures maintained in the Oracle code to fixed tables such that they can be queried using the SQL layer;16600dict/libcachethis layer performs management of data structures within the library cache;16651dict/libcachethis layer performs management of dictionary related information within library Cache;16701dict/libcachethis layer provides library Cache support to support database creation and forms part of the bootstrap process;17000dict/libcachethis is the main library Cache manager. This Layer maintains the in memory representation of cached sql statements together will all the necessary support that this demands;17090generic/vosthis layer implementations error management operations: signalling errors, catching errors, recovering from errors, setting error frames, etc.;17100generic/vosHeap manager. The Heap manager manages the storage of internal
data in an orderly and consistent manner. There can be many heaps serving various purposes; and heaps within heaps. Common examples
are the SGA heap, UGA heap and the PGA heap. Within a Heap there are consistency markers which aim to ensure that the Heap is always in a consistent state. Heaps are use extensively and are in memory structures – not on disk.17200dict/libcachethis component deals with loading remote library objects into the local library cache with information from the remote database.17250dict/libcachemore library cache errors ; functionality for handling pipe operation associated with dbms_pipe17270dict/instmgmtthis component manages instantiations of procedures, functions,
packages, and cursors in a session. This provides a means to keep track of what has been loaded in the event of process death;17300generic/vosmanages certain types of memory allocation structure. This functionality is an extension of the Heap manager.17500generic/vosrelates to various I/O operations. These relate to async i/o operation, direct i/o operation and the management of writing buffers from the buffer cache by potentially a number of database writer processes;17625dict/libcacheadditional library Cache supporting functions17990plsqlplsql ‘standard’ package related issues18000txn/lcltxtransaction and savepoint management operations19000optim/cbocost based optimizer related operations20000ram/indexbitmap index and index related errors.20400ram/partnmapoperations on partition related objects20500server/rcvserver recovery related operation21000repl/defrdrpc,
repl/snapshot,
repl/triggerreplication related features23000oltp/qsAQ related errors.24000dict/libcacheoperations associated with managing stored outlines25000server/rcvtablespace management operations2.2 Internal Errors Categorised by mnemonic（字符串类型）
Thefollowing table details mnemonics error stems which are possible. If you haveencountered : ora-600[kkjsrj:1] for example, you should look down the ErrorMnemonic column (errors in alphabetical order) until you find the matchingstem. In this case, kkj indicates that something unexpected has occurred in jobqueue operation.
as : addition , average, OR operator, bites AND , bites OR, concatenation, as well as Oracle related functions : count(), dump() , etc. The list is extensive.expcmo expgondbproc/exprevalhandles expression evaluation with respect to two operands being equivalentgrasecurity/dacmanages the granting and revoking of privilege rights to a usergslcsqplsldapsupport for operations with an LDAP serverinsexesqlexec/dmldrvhandles the insert statement operationjoxprogint/opifunctionality associated with the Java compiler and with the Java runtime environment within the Serverk2c k2dprogint/distribsupport for database to database operation in distributed environements as well as providing, with respect to the 2-phase commit protocol, a globally unique Database idk2g k2ltxn/disttxsupport for the 2 phase commit protocol protocol and the coordination of the various states in managing the distributed transactionk2r k2s k2spprogint/distribk2r – user interface for managing distributed transactions and
combining distributed results ; k2s – handles logging on, starting a transaction, ending a transaction and recovering a transaction; k2sp – management of savepoints in a distributed environment.k2vtxn/disttxhandles distributed recovery operationkadcartserv/picklercshandles OCIAnyData implementationkauram/datamanages the modification of indexes for inserts, updates and delete operations for IOTs as well as modification of indexes for IOTskcb kcbb kcbk kcbl kcbs kcbt kcbw kcbzcachemanages Oracle’s buffer cache operation as well as operations used by capabilities such as direct load, has clusters , etc.kcc kcfrcvmanages and coordinates operations on the control file(s)kcitcontext/triggerinternal trigger functionalitykckrcvcompatibility related checks associated with the compatible parameterkclcachebackground lck process which manages locking in a RAC or parallel server multiple instance environmentkco kcq kcra kcrf kcrfr kcrfw kcrp kcrr kcs kct kcvrcvvarious buffer cache operation such as quiesce operation , managing fast start IO target, parallel recovery operation , etc.kdram/datasupport for row level dependency checking and some log miner operationskdaram/analyzemanages the analyze command and collection of statisticskdbl kdc kddram/datasupport for direct load operation, cluster space management and deleting rowskdgram/analyzegathers information about the underlying data and is used by the analyze commandkdi kdibc3 kdibco kdibh kdibl kdibo kdibq kdibr kdic kdici kdii kdil kdir kdis kdiss kdit kdkram/indexsupport of the creation of indexes on tables an IOTs and index look upkdl kdltram/objectlob and temporary lob managementkdoram/dataoperations on data such as inserting a row piece or deleting a row piecekdrpram/analyzeunderlying support for operations provided by the dbms_repair packagekds kdt kduram/dataoperations on data such as retrieving a row and updating existing row datakdv kdxram/indexfunctionality for dumping index and managing index blockskfc kfd kfg asmsupport for ASM file and disk operationskfh kfp kftrcvsupport for writing to file header and transportable tablespace operationskgaj kgam kgan kgas kgat kgav kgazargusdbg/argusdbgsupport for Java Debug Wire Protocol (JDWP) and debugging faciliteskgbt kgg kgh kghs kghx kgkpvoskgbt – support for BTree operations; kgg – generic lists processing;
kgh – Heap Manager : managing the internal structures withing the SGA / UGA / PGA and ensures their integrity; kghs – Heap manager with Stream support; kghx – fixed sized shared memory manager; kgkp – generic services scheduling policieskgl kgl2 kgl3 kgla kglp kglr kglsdict/libcachegeneric library cache operationkgm kgmtilmssupport for inter language method services – or calling one language from anotherkgrq kgsk kgski kgsn kgssvossupport for priority queue and scheduling; capabilities for Numa support; Service State object managerkgupa kgupb kgupd0 kgupf kgupg kgupi kgupl kgupm kgupp kgupt kgupx kguq2 kguuvosService related activities activities associated with for Process
monitor (PMON); spawning or creating of background processes; debugging; managing process address space; managing the background processes; etc.kgxpvosinter process communication related functionskjak kjat kjb kjbl kjbm kjbr kjcc kjcs kjctc kjcts kjcv kjdd kjdm kjdr kjdx kjfc kjfm kjfs kjfz kjg kji kjl kjm kjp kjr kjs kjt kju kjxccl/dlmdlm related functionality ; associated with RAC or parallel server operationkjxgf kjxgg kjxgm kjxgn kjxgna kjxgrccl/cgsprovides communication & synchronisation associated with GMS or OPS related functionality as well as name service and OPS Instance Membership Recovery Facilitykjxtccl/dlmDLM request message managementkjzc kjzd kjzf kjzg kjzmccl/diagsupport for diagnosibility amongst OPS related serviceskkbdict/sqlddlsupport for operatoins which load/change table definitionskkbl kkbn kkboobjsupp/objddlsupport for tables with lobs , nested tables and varrays as well as columns with objectskkdc kkdl kkdodict/dictlkupsupport for constraints, dictionary lookup and dictionary support for objectskkeoptim/cboquery engine cost engine; provides support functions that provide cost estimates for queries under a number of different circumstanceskkfdsqlexec/pqsupport for performing parallel query operationkkfioptim/cbooptimizer support for matching of expressions against functional ndexeskkfr kkfssqlexec/pqsupport for rowid range handling as well as for building parallel query query operationskkjjobqs/jobqjob queue operationkkkd kkkidict/dbschedresource manager related support. Additionally, provides underlying functions provided by dbms_resource_manager and dbms_resource_manager_privs packageskklrdict/sqlddlprovides functions used to manipulate LOGGING and/or RECOVERABLE attributes of an object (non-partitioned table or index or partitions of a partitioned table or index)kkm kkmidict/dictlkupprovides various semantic checking functionskknram/analyzesupport for the analyze commandkko kkocrioptim/cboCost based Optimizer operation : generates alternative execution
plans in order to find the optimal / quickest access to the data. Also , support to determine cost and applicability of scanning a given index in trying to create or rebuild an index or a partition thereofkkpam kkpapram/partnmapsupport for mapping predicate keys expressions to equivalent partitionskkpo kkpoc kkpoddict/partnsupport for creation and modification of partitioned objectskkqg kkqs kkqs1 kkqs2 kkqs3 kkqu kkqv kkqwoptim/vwsubqquery rewrite operationkks kksa kksh kksl kksmdict/shrdcurssupport for managing shared cursors/ shared sqlkktdict/sqlddlsupport for creating, altering and dropping trigger definitions as well as handling the trigger operationkkxarepl/defrdrpcunderlying support for dbms_defer_query package operationskkxbdict/sqlddllibrary cache interface for external tableskkxldict/plsicdsunderlying support for the dbms_lob packagekkxmprogint/opisupport for inter language method serviceskkxsdict/plsicdsunderlying support for the dbms_sys_sql packagekkxtrepl/triggersupport for replication internal trigger operationkkxwtpprogint/opientry point into the plsql compilerkkydrvsupport for alter system/session commandskkz kkzd kkzf kkzg kkzi kkzj kkzl kkzo kkzp kkzq kkzr kkzu kkzvrepl/snapshotsupport for snapshots or Materialized View validation and operationkla klc klcli klxtools/sqlldrsupport for direct path sql loader operationkmc kmcp kmd kmm kmrmts/mtssupport for Multi Threaded server operation (MTS) : manange and
operate the virtual circuit mechanism, handle the dispatching of massages, administer shared servers and for collecting and maintaining statistics associated with MTSknac knafh knaha knahc knahf knahsrepl/applyreplication apply operation associated with Oracle streamsknccrepl/repcachesupport for replication related information stored and maintained in library cachekncd kncerepl/defrdrpcreplication related enqueue and dequeue of transction data as well as other queue related operationskncogrepl/repcachesupport for loading replicaiton object group information into library cacheknirepl/triggersupport for replication internal trigger operationknip knip2 knipi knipl knipr knipu knipu2 knipxrepl/intpkgsupport for replication internal package operation.knorepl/repobjsupport for replication objectsknp knpc knpcb knpcd knpqc knpsrepl/defrdrpcoperations assocaied with propagating transactions to a remote node and coordination of this activity.knstrepl/statsreplication statistics collectionknt kntg kntxrepl/triggersupport for replication internal trigger operationkocobjmgmt/objcachesupport for managing ADTs objects in the OOCI heapkodobjmgmt/datamgrsupport for persistent storage for objects : for read/write objects, to manage object IDs, and to manage object concurrency and recovery.kohobjmgmt/objcacheobject heap manager provides memory allocation services for objectskoiobjmgmt/objmgrsupport for object typeskokaobjsupp/objdatasupport for reading images, inserting images, updating images, and deleting images based on object references (REFs).kokb kokb2objsupp/objsqlsupport for nested table objectskokcobjmgmt/objcachesupport for pinning , unpinning and freeing objectskokdobjsupp/datadrvdriver on the server side for managing objectskoke koke2 kokiobjsupp/objsqlsupport for managing objectskoklobjsupp/objdatalob accesskokl2objsupp/objsqllob DML and programmatic interface supportkokl3objsupp/objdataobject temporary LOB supportkokle kokmobjsupp/objsqlobject SQL evaluation functionskoknobjsupp/objnamenaming support for objectskokoobjsupp/objsupsupport functions to allow oci/rpi to communicate with Object Management Subsystem (OMS).kokq koks koks2 koks3 koksrobjsupp/objsqlquery optimisation for objects , semantic checking and semantic rewrite operationskokt kokt2 kokt3objsupp/objddlobject compilation type managerkoku kokvobjsupp/objsqlsupport for unparse object operators and object view supportkol kolb kole kolf koloobjmgmt/objmgrsupport for object Lob buffering , object lob evaluation and object Language/runtime functions for Opaque typeskope2 kopi2 kopo kopp2 kopu koputil kopzobjmgmt/pickler8.1 engine implementation, implementation of image ops for 8.1+ image format together with various pickler related support functionskosobjsupp/objsupobject Stream interfaces for images/objectskot kot2 kotgobjmgmt/typemgrsupport for dynamic type operations to create, delete, and update types.koxs koxxobjmgmt/objmgtobject generic image Stream routines and miscellaneous generic object functionskpcp kpcxltprogint/kpcKernel programmatic connection pooling and kernel programmatic common type XLT translation routineskpkiprogint/kpkikernel programatic interface supportkplscartserv/corecssupport for string formatting operationskpnprogint/kpnsupport for server to server communicationkpoal8 kpoaq kpob kpodny kpodp kpods kpokgt kpolob kpolon kponprogint/kposupport for programmatic operationskporprogint/opisupport for streaming protocol used by replicationkposcprogint/kposupport for scrollable cursorskpotcprogint/opioracle side support functions for setting up trusted external procedure callbackskpotx kpovprogint/kposupport for managing local and distributed transaction coordination.kpp2 kpp3sqllang/parsekpp2 – parse routines for dimensions;
kpp3 – parse support for create/alter/drop summary statementskprb kprcprogint/rpisupport for executing sql efficiently on the Oracle server side as well as for copying data types during rpi operationskptscprogint/twotaskcallback functions provided to all streaming operation as part of replication functionalitykpu kpuc kpucpprogint/kpuOracle kernel side programmatic user interface, cursor management functions and client side connection pooling supportkqan kqap kqasargusdbg/argusdbgserver-side notifiers and callbacks for debug operations.kql kqld kqlpdict/libcacheSQL Library Cache manager – manages the sharing of sql statements in the shared poolkqrdict/rowcacherow cache management. The row cache consists of a set of facilities to provide fast access to table definitions and locking capabilities.krbi krbx krby krcr krd krpircvBackup and recovery related operations :
krbi
- dbms_backup_restore package underlying support.; krbx - proxy copy controller; krby – image copy; krcr – Recovery Controlfile Redo; krd – Recover Datafiles (Media & Standby Recovery); krpi – support for the package : dbms_pitrkrvg krvtrcv/vwrkrvg – support for generation of redo associated with DDL; krvt – support for redo log miner viewer (also known as log miner)ksa ksdp ksdx kse ksfd ksfh ksfq ksfv ksi ksim ksk ksl ksm ksmd ksmg ksn ksp kspt ksq ksr kss ksst ksu ksutvossupport for various kernel associated capabilitiesksxsqlexec/execsvcsupport for query execution associated with temporary tablesksxa ksxp ksxrvossupport for various kernel associated capabilities in relation to OPS or RAC operationktaspace/spcmgmtsupport for DML locks and temporary tables associated with table accessktb ktbt ktctxn/lcltxtransaction control operations at the block level : locking block, allocating space within the block , freeing up space, etc.ktec ktef ktehw ktein ktel kteop kteuspace/spcmgmtsupport for extent management operations :
ktec
- extent concurrency operations; ktef – extent format; ktehw – extent high water mark operations; ktein – extent information operations; ktel – extent support for sql loader; kteop – extent operations : add extent to segment, delete extent, resize extent, etc. kteu – redo support for operations changing segment header / extent mapktftxn/lcltxflashback supportktfb ktfd ktft ktmspace/spcmgmtktfb – support for bitmapped space manipulation of files/tablespaces; ktfd – dictionary-based extent management; ktft – support for temporary file manipulation; ktm – SMON operationktp ktpr ktr ktritxn/lcltxktp – support for parallel transaction operation; ktpr – support
for parallel transaction recovery; ktr – kernel transaction read consistency;
ktri – support for dbms_resumable packagektsa ktsap ktsau ktsb ktscbr ktsf ktsfx ktsi ktsm ktsp ktss ktst ktsx ktt kttmspace/spcmgmtsupport for checking and verifying space usagektu ktuc ktur ktusmtxn/lcltxinternal management of undo and rollback segmentskwqa kwqi kwqic kwqid kwqie kwqit kwqj kwqm kwqn kwqo kwqp kwqs kwqu kwqxoltp/qssupport for advanced queuing :
kwqa
- advanced queue administration; kwqi – support for AQ PL/SQL trusted callouts; kwqic – common AQ support functions; kwqid – AQ
dequeue support; kwqie – AQ enqueu support ; kwqit – time management operation ; kwqj – job queue scheduler for propagation; kwqm
- Multiconsumer queue IOT support; kwqn – queue notifier; kwqo – AQ support for checking instType checking options; kwqp – queueing propagation; kwqs – statistics handling; kwqu – handles lob data. ; kwqx – support for handling transformationskwrc kwreoltp/rerules engine evaluationkxcc kxcd kxcssqllang/integconstraint processingkxdrsqlexec/dmldrvDML driver entrypointkxfp kxfpb kxfq kxfr kxfxsqlexec/pqparallel query supportkxhf kxibsqlexec/execsvckhhf- support for hash join file and memory management; kxib – index buffering operationskxsdict/instmgmtsupport for executing shared cursorskxti kxto kxtrdbproc/triggersupport for trigger operationkxttram/partnmapsupport for temporary table operationskxwphram/datasupport for managing attributes of the segment of a table / cluster / table-partitionkzasecurity/auditsupport for auditing operationskzarsecurity/dacsupport for application auditingkzcksecurity/cryptoencryption supportkzdsecurity/dacsupport for dictionary access by security related functionskzecsecurity/dbencryptionsupport inserting and retrieving encrypted objects into and out of the databasekzfa kzftsecurity/auditsupport for fine grained auditingkziasecurity/logonidentification and authentication operationskzp kzra kzrt kzs kzu kzupsecurity/dacsecurity related operations associated with privilegesmsqima msqimbsqlexec/sqlgensupport for generating sql statmentsncodef npi npil npixfrprogint/npisupport for managing remote network connection from within the server itselfobasqllang/outbufaloperator buffer allocate for various types of operators : concatenate, decode, NVL, etc. the list is extensive.ocikprogint/ociOCI oracle server functionsopiaba opidrv opidsa opidsc opidsi opiexe opifch opiino opilng opipar opipls opirip opitsk opixprogint/opiOPI Oracle server functions – these are at the top of the server stack and are called indirectly by ythe client in order to server the client request.orlrobjmgmt/objmgrsupport for C langauge interfaces to user-defined types (UDTs)orpobjmgmt/pickleroracle’s external pickler / opaque type interfacespesblt pfri pfrsqcplsql/coxpesblt – pl/sql built in interpreter; pfri – pl/sql runtime; pfrsqc – pl/sql callbacks for array sql and dml with returningpihtplsql/gen/utlsupport for pl/sql implementation of utl_http packagepirgplsql/cli/utl_rawsupport for pl/sql implementation of utl_raw packagepismplsql/cli/utl_smtpsupport for pl/sql implementation of utl_smtp packagepitcbplsql/cli/utl_tcpsupport for pl/sql implementation of utl_tcp packagepiurplsql/gen/utl_urlsupport for pl/sql implementation of utl_url packageplioplsql/pkgpl/sql object instantiationplslmplsql/coxsupport for NCOMP processingplsm pmuc pmuo pmuxobjmgmt/polsupport for pl/sql handling of collectionsprifold prioldplsql/coxsupport to allow rpc forwarding to an older releaseprmsqllang/paramparameter handling associated with sql layerprsa prsc prsszsqllang/parseprsa – parser for alter cluster command; prsc – parser for create database command; prssz – support for parse context to be savedpsdbnd psdevnprogint/dbpsdpsdbnd – support for managing bind variables; psdevn – support for pl/sql debuggerpsdicdprogint/plsicdssmall number of ICD to allow pl/sql to call into ‘C’ sourcepsdmsc psdpgiprogint/dbpsdpsdmsc – pl/sql system dependent miscellaneous functions ; psdpgi – support for opening and closing cursors in pl/sqlpsfplsql/plspl/sql service related functions for instantiating called pl/sql unit in library cacheqbadrv qbaopnsqllang/qrybufalprovides allocation of buffer and control structures in query executionqcdl qcdodict/dictlkupqcdl – query compile semantic analysis; qcdo – query compile dictionary support for objectsqcidict/shrdcurssupport for SQL language parser and semantic analyserqcop qcpi qcpi3 qcpi4 qcpi5sqllang/parsesupport for query compilation parse phaseqcs qcs2 qcs3 qcsji qcsodict/dictlkupsupport for semantic analysis by SQL compilerqct qctosqllang/typeconvqct – query compile type check operations; qcto - query compile type check operatorsqcusqllang/parsevarious utilities provided for sql compilationqecdrvsqllang/qryedchkdriver performing high level checks on sql language query capabilitiesqerae qerba qerbc qerbi qerbm qerbo qerbt qerbu qerbx qercb qercbi qerco
qerdl qerep qerff qerfi qerfl qerfu qerfx qergi qergr qergs qerhc qerhj qeril qerim qerix qerjm qerjo qerle qerli qerlt qerns qeroc qeroi qerpa qerpf qerpx qerrm qerse qerso qersq qerst qertb qertq qerua qerup qerus qervw qerwn qerxtsqlexec/rowsrcrow source operators :
qerae – row source
(And-Equal) implementation; qerba – Bitmap Index AND row source; qerbc – bitmap index compaction row source; qerbi – bitmap index
creation row source; qerbm – QERB Minus row source; qerbo – Bitmap Index OR row source; qerbt – bitmap convert row source; qerbu – Bitmap Index Unlimited-OR row source; qerbx – bitmap index access row source; qercb – row source: connect by; qercbi – support
for connect by; qerco – count row source; qerdl – row source delete; qerep – explosion row source; qerff – row source fifo buffer;
qerfi – first row row source; qerfl – filter row source definition; qerfu – row source: for update; qerfx – fixed table row source; qergi – granule iterator row source; qergr – group by rollup row source; qergs – group by sort row source; qerhc – row
sources hash clusters; qerhj – row source Hash Join; qeril – In-list row source; qerim – Index Maintenance row source; qerix – Index row source; qerjo – row source: join; qerle – linear execution row source implementation; qerli – parallel create
index; qerlt – row source populate Table; qerns – group by No Sort row source; qeroc – object collection iterator row source; qeroi – extensible indexing query component; qerpa – partition row sources; qerpf – query execution row source: prefetch;
qerpx – row source: parallelizer; qerrm – remote row source; qerse – row source: set implementation; qerso – sort row source; qersq
- row source for sequence number; qerst – query execution row sources: statistics; qertb – table row source; qertq – table queue row source; qerua – row source : union-All;
qerup – update row source; qerus – upsert row source ; qervw – view row source; qerwn – WINDOW row source; qerxt – external table fetch row sourceqes3t qesa qesji qesl qesmm qesmmcsqlexec/execsvcrun time support for sql executionqkacon qkadrv qkajoi qkatab qke qkk qkn qkna qknesqlexec/rwsallocSQL query dynamic structure allocation routinesqks3tsqlexec/execsvcquery execution service associated with temp table transformationqksmm qksmms qksopsqllang/compsvcqksmm - memory management services for the SQL compiler; qksmms – memory management simulation services for the SQL compiler; qksop – query compilation service for operand processingqkswcsqlexec/execsvcsupport for temp table transformation associated for with clause.qmfxmlsupp/utilsupport for ftp server; implements processing of ftp commandsqmr qmrb qmrsxmlsupp/resolversupport hierarchical resolverqmsxmlsupp/datasupport for storage and retrieval of XOBsqmursxmlsupp/urisupport for handling URIsqmx qmxsaxxmlsupp/dataqmx – xml support; qmxsax – support for handling sax processingqmxtcxmlsupp/sqlsuppsupport for ddl and other operators related to the sql XML supportqmxtgxxmlsuppsupport for transformation : ADT -> XMLqmxtskxmlsupp/sqlsuppXMLType support functionsqsmesummgmt/dictsummary management expression processingqsmka qsmkzdict/dictlkupqsmka – support to analyze request in order to determine whether a summary could be created that would be useful; qsmkz – support for create/alter summary semantic analysisqsmp qsmq qsmqcsm qsmqutlsummgmt/dictqsmp – summary management partition processing; qsmq – summary
management dictionary access; qsmqcsm – support for create / drop / alter summary and related dimension operations; qsmqutl – support for summariesqsmssummgmt/advsvrsummary management advisorqxdidobjsupp/objddlsupport for domain index ddl operationsqxidmobjsupp/objsqlsupport for extensible index dml operationsqxidpobjsupp/objddlsupport for domain index ddl partition operationsqximobjsupp/objsqlextensible indexing support for objectsqxitex qxopc qxopeobjsupp/objddlqxitex – support for create / drop indextype; qxope – execution time support for operator callbacks; qxope – execution time support for operator DDLqxopq qxuag qxxmobjsupp/objsqlqxopq – support for queries with user-defined operators; qxuag – support for user defined aggregate processing; qxxm – queries involving external tablesrfmon rfra rfrdb rfrla rfrm rfrxptdrsimplements 9i data guard broker monitorrnmdict/sqlddlmanages rename statement operationrpiprogint/rpirecursive procedure interface which handles the the environment setup where multiple recursize statements are executed from one top level statementrwoimasqlexec/rwoprndsrow operand operationsrwsimasqlexec/rowsrcrow source implementation/retrieval according to the defining querysdbimasqlexec/sortmanages and performs sort operationselexesqlexec/dmldrvhandles the operation of select statement executionskgmosdsplatform specific memory management rountines interfacing with O.S. allocation functionssmbima sorsqlexec/sortmanages and performs sort operationsqndict/sqlddlsupport for parsing references to sequencessrdima srsima stsimasqlexec/sortmanages and performs sort operationtbsdrvspace/spcmgmtoperations for executing create / alter / drop tablespace and related supporting functionsttcclr ttcdrv ttcdty ttcrxh ttcx2yprogint/twotasktwo task common layer which provides high level interaction and
negotiation functions for Oracle client when communicating with the server. It also provides important function of converting client side data / data types into equivalent on the server and vice versauixexe ujiexe updexe upsexesqlexec/dmldrvsupport for : index maintenance operations, the execution of the
update statement and associated actions connected with update as well as the upsert command which combines the operations of update and insertvopoptim/vwsubqview optimisation related functionalityxcttxn/lcltxsupport for the management of transactions and savepoint operationsxplsqlexec/expplansupport for the explain plan commandxtysqllang/typeconvtype checking functionszlkesecurity/ols/intextlabel security error handling component三. 其他参数说明
在MOS 的文档：[ID28929.1]上有说明。
ORA-600[2662] Block SCN is ahead of Current SCN [ID 28929.1]
http://blog.csdn.net/tianlesoftware/article/details/6106130
Oracle DB 服务器 系统时间修改问题 与 SCN 关系的深入研究
http://blog.csdn.net/tianlesoftware/article/details/6163859
ORA-600 各个参数的格式和说明如下：
ERROR:
ORA-600 [2662] [a] [b] [c] [d] [e]
ARGUMENTS:
Arg [a] Current SCN WRAP
Arg [b] Current SCN BASE
Arg [c] dependent SCN WRAP
Arg [d] dependent SCN BASE
Arg [e] Where present this is the DBA wherethe dependent SCN came from.
注意，这里的DBA 指的是Data Block Address. 相关说明，参考我的Blog：
Oracle rdba和 dba 说明
http://blog.csdn.net/tianlesoftware/article/details/6529346
From kcrf.h:
Ifthe SCN comes from the recent or current SCN then a dba of zero is saved. If itcomes from undo$ because the undo segment is not available then the undosegment number is saved, which looks like a block from file 0. If the SCN isfor a media recovery redo (i.e. block number == 0 in change vector), then thedba is for block 0 of the relevant datafile. If it is from another database fora distributed transaction then dba is DBAINF(). If it comes from a TX lock thenthe dba is really usn<<16+slot.
在MOS 的文档：[ID 365536.1] 里提到了SCN 与SCN WRAP，SCN BASE这两个参数的关系。
SCN value is storedinternally as :
（1）SCN_wrap
（2）SCN_base
Wheneverthe SCN is incremented, the BASE component is incremented first unil it reachesit maximum. Once the BASE reaches the maximum value allowed, it is initializedto zero again after incrementing the WRAP by 1.
--开始时WRAP 为0，即SCN_WRP=0.当BASE增长到最大值后，SCN_BAS变为0. 同时SCN_WRP增长到1
Using this logic, we cancalculate the timestamp of the SCN as follows:
(SCN_WRP* 4294967296) + SCN_BAS should give us the SCN in the number format
--SCN 的计算公式，这里我们看出SCN 是根据SCN_BAS计算出来的。和系统时间是没有关系的。 只是方便我们来进行操作，如闪回恢复，而将SCN 和 系统时间每隔5分钟进行一次映射。 映射完后，由SMON进程将映射关系写入SMON_SCN_TIME表。 可以把SCN 看成是Oracle内部的时间。
To get the time/date for an SCN value in9i, use the following example:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-- (a) Get the current SCN base.
SQL>select max(scn_bas) SCN_BASE fromsmon_scn_time;
1603342197
--(b) Get the complete SCN and thetimestamp.
SQL> alter session setNLS_DATE_FORMAT='DD-MON-YY HH:MI:SS';
SQL> select time_dp TIMESTAMP,scn_wrp*4294967296+SCN_bas SCN from smon_scn_time where scn_bas='1603342197';
TIMESTAMP SCN
------------------ ----------
28-JUL-06 05:31:08 8252235517813
现在来看下这5个参数之间的关系。
ARGUMENTS:
Arg [a] Current SCN WRAP
Arg [b] Current SCN BASE
Arg [c] dependent SCNWRAP
Arg [d] dependent SCN BASE
Arg [e] Where present this is the DBA wherethe dependent SCN came from.
根据SCN WRAP 和 SCN BASE，我们可以计算出当前SCN 对应的timestamp。
对与depent SCN 和 current SCN 关系，咨询了一下dbsnake。给出的回复如下：
当一个库是clean shutdown的时候，Oracle一定会做full checkpoint，把所有的dirty block都写回各自的datafile，同时把当前的SCN作为checkpoint SCN写回到各个datafile的datafile header中。也就是说，如果一个库是clean shutdown，那么这个库不可能有一个数据块的块里的SCN（Oracle的一个数据块里的SCN有三种，分别是块头的SCN，CSC和ITL中记录的commit SCN）比刚才写回的checkpoint SCN要大。
当一个库启动时，Oracle会做一系列的校验，其中有一个检查就是Oracle会去检查system表空间下的某些块，如果Oracle发现这些块里的SCN要比这个库当前的current SCN（实际上，启库时的current SCN就来源于shutdown时记录在datafileheader中的checkpoint SCN）要大的时候，就表明这个库是有问题了，
此时Oracle就会报跟SCN相关的一系列错误，ORA-600[2662]只是其中的一种。对于ORA-600[2662]这种情况，dependent SCN实际上就是Oracle发现有问题的system表空间下的某些块里的SCN，这个SCN可能是这个块里ITL中记录的commit SCN，也有可能是CSC (cleanout SCN)。
根据dbsnake 的说明，这个dependent SCN 是某个数据块里的SCN.正常情况下，这个SCN 是要小于current SCN的，当dependent SCN 大于current SCN 就会报相关的错误。instance failure 和physical corruption 都可能会造成这个问题。
到此，相信大家对“数据库中ORA-600各个参数含义分析”有了更深的了解，不妨来实际操作一番吧！这里是亿速云网站，更多相关内容可以进入相关频道进行查询，关注我们，继续学习！
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