Palavras-chave reservadas (Transact-SQL)Reserved Keywords (Transact-SQL)

APLICA-SE A: simSQL Server simBanco de Dados SQL do Azure simAzure Synapse Analytics (SQL DW) simParallel Data Warehouse APPLIES TO: yesSQL Server yesAzure SQL Database yesAzure Synapse Analytics (SQL DW) yesParallel Data Warehouse

O MicrosoftMicrosoft SQL ServerSQL Server usa palavras-chave reservadas para definir, manipular e acessar bancos de dados.MicrosoftMicrosoft SQL ServerSQL Server uses reserved keywords for defining, manipulating, and accessing databases. As palavras-chave reservadas fazem parte da gramática da linguagem Transact-SQLTransact-SQL usada pelo SQL ServerSQL Server para analisar e compreender as instruções e os lotes Transact-SQLTransact-SQL.Reserved keywords are part of the grammar of the Transact-SQLTransact-SQL language that is used by SQL ServerSQL Server to parse and understand Transact-SQLTransact-SQL statements and batches. Embora seja sintaticamente possível usar as palavras-chave reservadas do SQL ServerSQL Server como identificadores e nomes de objeto em scripts Transact-SQLTransact-SQL, você só pode fazer isso usando identificadores delimitados.Although it is syntactically possible to use SQL ServerSQL Server reserved keywords as identifiers and object names in Transact-SQLTransact-SQL scripts, you can do this only by using delimited identifiers.

A tabela abaixo lista SQL ServerSQL Server e palavras-chave reservadas ao SQL Data Warehouse do Azure.The following table lists SQL ServerSQL Server and Azure SQL Data Warehouse reserved keywords.

ADDADD EXTERNALEXTERNAL PROCEDUREPROCEDURE
ALLALL FETCHFETCH PUBLICPUBLIC
ALTERALTER FILEFILE RAISERRORRAISERROR
ANDAND FILLFACTORFILLFACTOR READREAD
ANYANY FORFOR READTEXTREADTEXT
ASAS FOREIGNFOREIGN RECONFIGURERECONFIGURE
ASCASC FREETEXTFREETEXT REFERENCESREFERENCES
AUTHORIZATIONAUTHORIZATION FREETEXTTABLEFREETEXTTABLE ReplicaçãoREPLICATION
BACKUPBACKUP FROMFROM RESTORERESTORE
BEGINBEGIN FULLFULL RESTRICTRESTRICT
BETWEENBETWEEN FUNCTIONFUNCTION RETURNRETURN
BREAKBREAK GOTOGOTO REVERTREVERT
BROWSEBROWSE GRANTGRANT REVOKEREVOKE
BULKBULK GROUPGROUP RIGHTRIGHT
BYBY HAVINGHAVING ROLLBACKROLLBACK
CASCADECASCADE HOLDLOCKHOLDLOCK ROWCOUNTROWCOUNT
CASECASE IDENTITYIDENTITY ROWGUIDCOLROWGUIDCOL
CHECKCHECK IDENTITY_INSERTIDENTITY_INSERT RULERULE
CHECKPOINTCHECKPOINT IDENTITYCOLIDENTITYCOL SAVESAVE
CLOSECLOSE IFIF SCHEMASCHEMA
CLUSTEREDCLUSTERED ININ SECURITYAUDITSECURITYAUDIT
COALESCECOALESCE INDEXINDEX SELECTSELECT
COLLATECOLLATE INNERINNER SEMANTICKEYPHRASETABLESEMANTICKEYPHRASETABLE
COLUMNCOLUMN INSERTINSERT SEMANTICSIMILARITYDETAILSTABLESEMANTICSIMILARITYDETAILSTABLE
COMMITCOMMIT INTERSECTINTERSECT SEMANTICSIMILARITYTABLESEMANTICSIMILARITYTABLE
COMPUTECOMPUTE INTOINTO SESSION_USERSESSION_USER
CONSTRAINTCONSTRAINT ISIS SETSET
CONTAINSCONTAINS JOINJOIN SETUSERSETUSER
CONTAINSTABLECONTAINSTABLE KEYKEY SHUTDOWNSHUTDOWN
CONTINUECONTINUE KILLKILL SOMESOME
CONVERTCONVERT LEFTLEFT STATISTICSSTATISTICS
CREATECREATE LIKELIKE SYSTEM_USERSYSTEM_USER
CROSSCROSS LINENOLINENO TABLETABLE
CURRENTCURRENT LOADLOAD TABLESAMPLETABLESAMPLE
CURRENT_DATECURRENT_DATE MERGEMERGE TEXTSIZETEXTSIZE
CURRENT_TIMECURRENT_TIME NATIONALNATIONAL THENTHEN
CURRENT_TIMESTAMPCURRENT_TIMESTAMP NOCHECKNOCHECK TOTO
CURRENT_USERCURRENT_USER NONCLUSTEREDNONCLUSTERED INÍCIOTOP
CURSORCURSOR NOTNOT TRANTRAN
DATABASEDATABASE NULLNULL TRANSACTIONTRANSACTION
DBCCDBCC NULLIFNULLIF TRIGGERTRIGGER
DEALLOCATEDEALLOCATE OFOF TRUNCATETRUNCATE
DECLAREDECLARE OFFOFF TRY_CONVERTTRY_CONVERT
DEFAULTDEFAULT OFFSETSOFFSETS TSEQUALTSEQUAL
Delete (excluir)DELETE ONON UNIONUNION
DENYDENY OPENOPEN UNIQUEUNIQUE
DESCDESC OPENDATASOURCEOPENDATASOURCE UNPIVOTUNPIVOT
DISKDISK OPENQUERYOPENQUERY UPDATEUPDATE
DISTINCTDISTINCT OPENROWSETOPENROWSET UPDATETEXTUPDATETEXT
DISTRIBUTEDDISTRIBUTED OPENXMLOPENXML USEUSE
DOUBLEDOUBLE OPÇÃOOPTION UsuárioUSER
DROPDROP OUOR VALUESVALUES
DUMPDUMP ORDERORDER VARYINGVARYING
ELSEELSE OUTEROUTER VIEWVIEW
ENDEND OVEROVER WAITFORWAITFOR
ERRLVLERRLVL PERCENTPERCENT WHENWHEN
ESCAPEESCAPE PIVOTPIVOT WHEREWHERE
EXCEPTEXCEPT PLANPLAN WHILEWHILE
EXECEXEC PRECISIONPRECISION comWITH
ExecuteEXECUTE PRIMARYPRIMARY WITHIN GROUPWITHIN GROUP
EXISTSEXISTS PRINTPRINT WRITETEXTWRITETEXT
EXITEXIT PROCPROC

A tabela abaixo lista as palavras-chave reservadas que são exclusivas do SQL Data Warehouse do Azure.The following table lists reserved keywords that are exclusive to Azure SQL Data Warehouse.

LABELLABEL

Adicionalmente, o padrão ISO define uma lista de palavras-chave reservadas.Additionally, the ISO standard defines a list of reserved keywords. Evite usar palavras-chave reservadas ISO em nomes de objeto e identificadores.Avoid using ISO reserved keywords for object names and identifiers. A lista de palavras-chave reservadas de ODBC, mostrada na tabela seguinte, é a mesma do ISO.The ODBC reserved keyword list, shown in the following table, is the same as the ISO reserved keyword list.

Observação

A lista de palavras-chave reservadas dos padrões ISO pode às vezes ser mais restritiva que o SQL ServerSQL Server e, em outras vezes, menos restritiva.The ISO standards reserved keywords list sometimes can be more restrictive than SQL ServerSQL Server and at other times less restrictive. Por exemplo, a lista de palavras-chave reservadas ISO contém INT.For example, the ISO reserved keywords list contains INT. O SQL ServerSQL Server não precisa distinguir isso como uma palavra-chave reservada.SQL ServerSQL Server does not have to distinguish this as a reserved keyword.

As palavras-chave reservadas Transact-SQLTransact-SQL podem ser usadas como identificadores ou nomes de bancos de dados ou objetos de banco de dados, como tabelas, colunas, exibições etc.Transact-SQLTransact-SQL reserved keywords can be used as identifiers or names of databases or database objects, such as tables, columns, views, and so on. Use identificadores entre aspas ou delimitados.Use either quoted identifiers or delimited identifiers. O uso de palavras-chave reservadas como os nomes de variáveis e parâmetros de procedimento armazenado não é restrito.Using reserved keywords as the names of variables and stored procedure parameters is not restricted.

Palavras-chave reservadas ODBCODBC Reserved Keywords

As palavras seguintes são reservadas para uso em chamadas de função ODBC.The following words are reserved for use in ODBC function calls. Essas palavras não restringem a gramática SQL mínima; entretanto, para garantir a compatibilidade com drivers que oferecem gramática SQL principal, os aplicativos devem evitar o uso dessas palavras-chave.These words do not constrain the minimum SQL grammar; however, to ensure compatibility with drivers that support the core SQL grammar, applications should avoid using these keywords.

Esta é a lista atual de palavras-chave reservadas de ODBC.This is the current list of ODBC reserved keywords.

ABSOLUTEABSOLUTE EXECEXEC OVERLAPSOVERLAPS
ACTIONACTION EXECUTEEXECUTE PADPAD
ADAADA EXISTSEXISTS PARTIALPARTIAL
ADDADD EXTERNALEXTERNAL PASCALPASCAL
ALLALL EXTRACTEXTRACT POSITIONPOSITION
ALLOCATEALLOCATE FALSEFALSE PRECISIONPRECISION
ALTERALTER FETCHFETCH PREPAREPREPARE
ANDAND FIRSTFIRST PRESERVEPRESERVE
ANYANY FLOATFLOAT PRIMARYPRIMARY
AREARE FORFOR PRIORPRIOR
ASAS FOREIGNFOREIGN PRIVILEGESPRIVILEGES
ASCASC FORTRANFORTRAN PROCEDUREPROCEDURE
ASSERTIONASSERTION FOUNDFOUND PUBLICPUBLIC
ATAT FROMFROM READREAD
AUTHORIZATIONAUTHORIZATION FULLFULL REALREAL
AVGAVG GETGET REFERENCESREFERENCES
BEGINBEGIN GLOBALGLOBAL RELATIVERELATIVE
BETWEENBETWEEN GOGO RESTRICTRESTRICT
BITBIT GOTOGOTO REVOKEREVOKE
BIT_LENGTHBIT_LENGTH GRANTGRANT RIGHTRIGHT
BOTHBOTH GROUPGROUP ROLLBACKROLLBACK
BYBY HAVINGHAVING ROWSROWS
CASCADECASCADE HOURHOUR SCHEMASCHEMA
CASCADEDCASCADED IDENTITYIDENTITY SCROLLSCROLL
CASECASE IMMEDIATEIMMEDIATE SECONDSECOND
CASTCAST ININ SECTIONSECTION
CATALOGCATALOG INCLUDEINCLUDE SELECTSELECT
CHARCHAR INDEXINDEX SESSIONSESSION
CHAR_LENGTHCHAR_LENGTH INDICATORINDICATOR SESSION_USERSESSION_USER
CHARACTERCHARACTER INITIALLYINITIALLY SETSET
CHARACTER_LENGTHCHARACTER_LENGTH INNERINNER SIZESIZE
CHECKCHECK INPUTINPUT SMALLINTSMALLINT
CLOSECLOSE INSENSITIVEINSENSITIVE SOMESOME
COALESCECOALESCE INSERTINSERT SPACESPACE
COLLATECOLLATE INTINT SQLSQL
COLLATIONCOLLATION INTEGERINTEGER SQLCASQLCA
COLUMNCOLUMN INTERSECTINTERSECT SQLCODESQLCODE
COMMITCOMMIT INTERVALINTERVAL SQLERRORSQLERROR
CONNECTCONNECT INTOINTO SQLSTATESQLSTATE
CONNECTIONCONNECTION ISIS SQLWARNINGSQLWARNING
CONSTRAINTCONSTRAINT ISOLATIONISOLATION SUBSTRINGSUBSTRING
CONSTRAINTSCONSTRAINTS JOINJOIN SUMSUM
CONTINUECONTINUE KEYKEY SYSTEM_USERSYSTEM_USER
CONVERTCONVERT LANGUAGELANGUAGE TABLETABLE
CORRESPONDINGCORRESPONDING LASTLAST TEMPORARYTEMPORARY
COUNTCOUNT LEADINGLEADING THENTHEN
CREATECREATE LEFTLEFT TIMETIME
CROSSCROSS LEVELLEVEL TIMESTAMPTIMESTAMP
CURRENTCURRENT LIKELIKE TIMEZONE_HOURTIMEZONE_HOUR
CURRENT_DATECURRENT_DATE LOCALLOCAL TIMEZONE_MINUTETIMEZONE_MINUTE
CURRENT_TIMECURRENT_TIME LOWERLOWER TOTO
CURRENT_TIMESTAMPCURRENT_TIMESTAMP MATCHMATCH TRAILINGTRAILING
CURRENT_USERCURRENT_USER MAXMAX TRANSACTIONTRANSACTION
CURSORCURSOR MINMIN TRANSLATETRANSLATE
DATEDATE MINUTEMINUTE TRANSLATIONTRANSLATION
DAYDAY MODULEMODULE TRIMTRIM
DEALLOCATEDEALLOCATE MONTHMONTH TRUETRUE
DECDEC NAMESNAMES UNIONUNION
DECIMALDECIMAL NATIONALNATIONAL UNIQUEUNIQUE
DECLAREDECLARE NATURALNATURAL UNKNOWNUNKNOWN
DEFAULTDEFAULT NCHARNCHAR UPDATEUPDATE
DEFERRABLEDEFERRABLE NEXTNEXT UPPERUPPER
DEFERREDDEFERRED NONO USAGEUSAGE
DELETEDELETE NONENONE USERUSER
DESCDESC NOTNOT USINGUSING
DESCRIBEDESCRIBE NULLNULL VALUEVALUE
DESCRIPTORDESCRIPTOR NULLIFNULLIF VALUESVALUES
DIAGNOSTICSDIAGNOSTICS NUMERICNUMERIC VARCHARVARCHAR
DISCONNECTDISCONNECT OCTET_LENGTHOCTET_LENGTH VARYINGVARYING
DISTINCTDISTINCT OFOF VIEWVIEW
DOMAINDOMAIN ONON WHENWHEN
DOUBLEDOUBLE ONLYONLY WHENEVERWHENEVER
DROPDROP OPENOPEN WHEREWHERE
ELSEELSE OPTIONOPTION WITHWITH
ENDEND OROR WORKWORK
END-EXECEND-EXEC ORDERORDER WRITEWRITE
ESCAPEESCAPE OUTEROUTER YEARYEAR
EXCEPTEXCEPT OUTPUTOUTPUT ZONEZONE
EXCEPTIONEXCEPTION

Palavras-chave futurasFuture Keywords

As palavras-chave seguintes poderão ser reservadas em versões futuras do SQL ServerSQL Server à medida que novos recursos forem implementados.The following keywords could be reserved in future releases of SQL ServerSQL Server as new features are implemented. Considere evitar o uso destas palavras como identificadores.Consider avoiding the use of these words as identifiers.

ABSOLUTEABSOLUTE HOSTHOST RELATIVERELATIVE
ACTIONACTION HOURHOUR RELEASERELEASE
ADMINADMIN IGNOREIGNORE RESULTRESULT
AFTERAFTER IMMEDIATEIMMEDIATE RETURNSRETURNS
AGGREGATEAGGREGATE INDICATORINDICATOR ROLEROLE
ALIASALIAS INITIALIZEINITIALIZE ROLLUPROLLUP
ALLOCATEALLOCATE INITIALLYINITIALLY ROUTINEROUTINE
AREARE INOUTINOUT ROWROW
ARRAYARRAY INPUTINPUT ROWSROWS
ASENSITIVEASENSITIVE INTINT SAVEPOINTSAVEPOINT
ASSERTIONASSERTION INTEGERINTEGER SCROLLSCROLL
ASYMMETRICASYMMETRIC INTERSECTIONINTERSECTION SCOPESCOPE
ATAT INTERVALINTERVAL SEARCHSEARCH
ATOMICATOMIC ISOLATIONISOLATION SECONDSECOND
BEFOREBEFORE ITERATEITERATE SECTIONSECTION
BINARYBINARY LANGUAGELANGUAGE SENSITIVESENSITIVE
BITBIT LARGELARGE SEQUENCESEQUENCE
BLOBBLOB LASTLAST SESSIONSESSION
BOOLEANBOOLEAN LATERALLATERAL SETSSETS
BOTHBOTH LEADINGLEADING SIMILARSIMILAR
BREADTHBREADTH LESSLESS SIZESIZE
CALLCALL LEVELLEVEL SMALLINTSMALLINT
CALLEDCALLED LIKE_REGEXLIKE_REGEX SPACESPACE
CARDINALITYCARDINALITY LIMITLIMIT SPECIFICSPECIFIC
CASCADEDCASCADED LNLN SPECIFICTYPESPECIFICTYPE
CASTCAST LOCALLOCAL SQLSQL
CATALOGCATALOG LOCALTIMELOCALTIME SQLEXCEPTIONSQLEXCEPTION
CHARCHAR LOCALTIMESTAMPLOCALTIMESTAMP SQLSTATESQLSTATE
CHARACTERCHARACTER LOCATORLOCATOR SQLWARNINGSQLWARNING
CLASSCLASS MAPMAP STARTSTART
CLOBCLOB MATCHMATCH STATESTATE
COLLATIONCOLLATION MEMBERMEMBER STATEMENTSTATEMENT
COLLECTCOLLECT METHODMETHOD STATICSTATIC
COMPLETIONCOMPLETION MINUTEMINUTE STDDEV_POPSTDDEV_POP
CONDITIONCONDITION MODMOD STDDEV_SAMPSTDDEV_SAMP
CONNECTCONNECT MODIFIESMODIFIES STRUCTURESTRUCTURE
CONNECTIONCONNECTION MODIFYMODIFY SUBMULTISETSUBMULTISET
CONSTRAINTSCONSTRAINTS MODULEMODULE SUBSTRING_REGEXSUBSTRING_REGEX
CONSTRUCTORCONSTRUCTOR MONTHMONTH SYMMETRICSYMMETRIC
CORRCORR MULTISETMULTISET SYSTEMSYSTEM
CORRESPONDINGCORRESPONDING NAMESNAMES TEMPORARYTEMPORARY
COVAR_POPCOVAR_POP NATURALNATURAL TERMINATETERMINATE
COVAR_SAMPCOVAR_SAMP NCHARNCHAR THANTHAN
CUBECUBE NCLOBNCLOB TIMETIME
CUME_DISTCUME_DIST NEWNEW timestampTIMESTAMP
CURRENT_CATALOGCURRENT_CATALOG NEXTNEXT TIMEZONE_HOURTIMEZONE_HOUR
CURRENT_DEFAULT_TRANSFORM_GROUPCURRENT_DEFAULT_TRANSFORM_GROUP NãoNO TIMEZONE_MINUTETIMEZONE_MINUTE
CURRENT_PATHCURRENT_PATH NenhumaNONE TRAILINGTRAILING
CURRENT_ROLECURRENT_ROLE NORMALIZENORMALIZE TRANSLATE_REGEXTRANSLATE_REGEX
CURRENT_SCHEMACURRENT_SCHEMA NUMERICNUMERIC TRANSLATIONTRANSLATION
CURRENT_TRANSFORM_GROUP_FOR_TYPECURRENT_TRANSFORM_GROUP_FOR_TYPE OBJECTOBJECT TREATTREAT
CYCLECYCLE OCCURRENCES_REGEXOCCURRENCES_REGEX TRUETRUE
DATADATA OLDOLD UESCAPEUESCAPE
DATEDATE ONLYONLY UNDERUNDER
DAYDAY OPERATIONOPERATION UNKNOWNUNKNOWN
DECDEC ORDINALITYORDINALITY UNNESTUNNEST
DECIMALDECIMAL OUTOUT USAGEUSAGE
DEFERRABLEDEFERRABLE OVERLAYOVERLAY USINGUSING
DEFERREDDEFERRED OUTPUTOUTPUT ValueVALUE
DEPTHDEPTH PADPAD VAR_POPVAR_POP
DEREFDEREF ParâmetroPARAMETER VAR_SAMPVAR_SAMP
DESCRIBEDESCRIBE PARAMETERSPARAMETERS VARCHARVARCHAR
DESCRIPTORDESCRIPTOR PARTIALPARTIAL VARIABLEVARIABLE
DESTROYDESTROY PARTITIONPARTITION WHENEVERWHENEVER
DESTRUCTORDESTRUCTOR PATHPATH WIDTH_BUCKETWIDTH_BUCKET
DETERMINISTICDETERMINISTIC POSTFIXPOSTFIX WITHOUTWITHOUT
DICTIONARYDICTIONARY PREFIXPREFIX WINDOWWINDOW
DIAGNOSTICSDIAGNOSTICS PREORDERPREORDER WITHINWITHIN
DISCONNECTDISCONNECT PREPAREPREPARE WORKWORK
DOMAINDOMAIN PERCENT_RANKPERCENT_RANK WRITEWRITE
DYNAMICDYNAMIC PERCENTILE_CONTPERCENTILE_CONT XMLAGGXMLAGG
EACHEACH PERCENTILE_DISCPERCENTILE_DISC XMLATTRIBUTESXMLATTRIBUTES
ELEMENTELEMENT POSITION_REGEXPOSITION_REGEX XMLBINARYXMLBINARY
END-EXECEND-EXEC PRESERVEPRESERVE XMLCASTXMLCAST
EQUALSEQUALS PRIORPRIOR XMLCOMMENTXMLCOMMENT
EVERYEVERY PRIVILEGESPRIVILEGES XMLCONCATXMLCONCAT
EXCEPTIONEXCEPTION RANGERANGE XMLDOCUMENTXMLDOCUMENT
FALSEFALSE READSREADS XMLELEMENTXMLELEMENT
FILTERFILTER realREAL XMLEXISTSXMLEXISTS
FIRSTFIRST RECURSIVERECURSIVE XMLFORESTXMLFOREST
FLOATFLOAT REFREF XMLITERATEXMLITERATE
FOUNDFOUND REFERENCINGREFERENCING XMLNAMESPACESXMLNAMESPACES
FREEFREE REGR_AVGXREGR_AVGX XMLPARSEXMLPARSE
FULLTEXTTABLEFULLTEXTTABLE REGR_AVGYREGR_AVGY XMLPIXMLPI
FUSIONFUSION REGR_COUNTREGR_COUNT XMLQUERYXMLQUERY
GENERALGENERAL REGR_INTERCEPTREGR_INTERCEPT XMLSERIALIZEXMLSERIALIZE
GETGET REGR_R2REGR_R2 XMLTABLEXMLTABLE
GLOBALGLOBAL REGR_SLOPEREGR_SLOPE XMLTEXTXMLTEXT
GOGO REGR_SXXREGR_SXX XMLVALIDATEXMLVALIDATE
GROUPINGGROUPING REGR_SXYREGR_SXY YEARYEAR
HOLDHOLD REGR_SYYREGR_SYY ZONEZONE

Consulte TambémSee Also

SET QUOTED_IDENTIFIER (Transact-SQL) SET QUOTED_IDENTIFIER (Transact-SQL)
Nível de compatibilidade de ALTER DATABASE (Transact-SQL)ALTER DATABASE Compatibility Level (Transact-SQL)