MultiValue Basic Quick Reference - InterSystems Documentation

MultiValue Basic QuickReferenceVersion 2013.124 April 2013InterSystems Corporation 1 Memorial Drive Cambridge MA 02142 www.intersystems.com

MultiValue Basic Quick ReferenceCaché Version 2013.1 24 April 2013Copyright © 2013 InterSystems CorporationAll rights reserved.This book was assembled and formatted in Adobe Page Description Format (PDF) using tools and information from the following sources:Oracle Corporation, RenderX, Inc., Adobe Systems, and the World Wide Web Consortium at www.w3c.org. The primary documentdevelopment tools were special-purpose XML-processing applications built by InterSystems using Caché and Java., , , ,Caché WEBLINK, and Distributed Cache Protocol are registered trademarks of InterSystems Corporation., ,InterSystems Jalapeño Technology, Enterprise Cache Protocol, ECP, and InterSystems Zen are trademarks of InterSystems Corporation.All other brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.This document contains trade secret and confidential information which is the property of InterSystems Corporation, One Memorial Drive,Cambridge, MA 02142, or its affiliates, and is furnished for the sole purpose of the operation and maintenance of the products of InterSystemsCorporation. No part of this publication is to be used for any other purpose, and this publication is not to be reproduced, copied, disclosed,transmitted, stored in a retrieval system or translated into any human or computer language, in any form, by any means, in whole or in part,without the express prior written consent of InterSystems Corporation.The copying, use and disposition of this document and the software programs described herein is prohibited except to the limited extentset forth in the standard software license agreement(s) of InterSystems Corporation covering such programs and related documentation.InterSystems Corporation makes no representations and warranties concerning such software programs other than those set forth in suchstandard software license agreement(s). In addition, the liability of InterSystems Corporation for any losses or damages relating to or arisingout of the use of such software programs is limited in the manner set forth in such standard software license agreement(s).THE FOREGOING IS A GENERAL SUMMARY OF THE RESTRICTIONS AND LIMITATIONS IMPOSED BY INTERSYSTEMSCORPORATION ON THE USE OF, AND LIABILITY ARISING FROM, ITS COMPUTER SOFTWARE. FOR COMPLETE INFORMATIONREFERENCE SHOULD BE MADE TO THE STANDARD SOFTWARE LICENSE AGREEMENT(S) OF INTERSYSTEMS CORPORATION,COPIES OF WHICH WILL BE MADE AVAILABLE UPON REQUEST.InterSystems Corporation disclaims responsibility for errors which may appear in this document, and it reserves the right, in its sole discretionand without notice, to make substitutions and modifications in the products and practices described in this document.For Support questions about any InterSystems products, contact:InterSystems Worldwide Customer SupportTel: +1 617 621-0700Fax: +1 617 374-9391Email: support@InterSystems.com

Table of Contents1 Caché MVBasic Supported Features ................................................................................................ 11.1 MultiValue Basic Commands, Functions, and Reserved Words ................................................ 21.2 Conversion Codes ..................................................................................................................... 181.3 Compiler Directives .................................................................................................................. 201.4 System Variables (@ Variables) ............................................................................................... 211.5 String Extraction Operators ...................................................................................................... 23MultiValue Basic Quick Referenceiii

List of TablesTable 1–1: Reserved Words By Initial Letter .......................................................................................... 1Table 1–2: Other Items ............................................................................................................................ 1Table 1–3: MultiValue Basic - Reserved Words A... ............................................................................... 2Table 1–4: MultiValue Basic - Reserved Words B... ............................................................................... 3Table 1–5: MultiValue Basic - Reserved Words C... ............................................................................... 3Table 1–6: MultiValue Basic - Reserved Words D... ............................................................................... 5Table 1–7: MultiValue Basic - Reserved Words E... ............................................................................... 5Table 1–8: MultiValue Basic - Reserved Words F... ................................................................................ 6Table 1–9: MultiValue Basic - Reserved Words G... ............................................................................... 7Table 1–10: MultiValue Basic - Reserved Words H... ............................................................................. 8Table 1–11: MultiValue Basic - Reserved Words I... ............................................................................... 8Table 1–12: MultiValue Basic - Reserved Words K... ............................................................................. 9Table 1–13: MultiValue Basic - Reserved Words L... ............................................................................. 9Table 1–14: MultiValue Basic - Reserved Words M... .......................................................................... 10Table 1–15: MultiValue Basic - Reserved Words N .............................................................................. 11Table 1–16: MultiValue Basic - Reserved Words O... ........................................................................... 11Table 1–17: MultiValue Basic - Reserved Words P... ............................................................................ 12Table 1–18: MultiValue Basic - Reserved Words Q .............................................................................. 12Table 1–19: MultiValue Basic - Reserved Words R... ........................................................................... 12Table 1–20: MultiValue Basic - Reserved Words S ............................................................................... 14Table 1–21: MultiValue Basic - Reserved Words T... ............................................................................ 16Table 1–22: MultiValue Basic - Reserved Words U... ........................................................................... 17Table 1–23: MultiValue Basic - Reserved Words W... ........................................................................... 18Table 1–24: MultiValue Basic - Reserved Words X... ........................................................................... 18Table 1–25: MultiValue Basic Conversion Codes ................................................................................. 19Table 1–26: MultiValue Basic - Compiler Directives ............................................................................ 20Table 1–27: MultiValue Basic - @-Variables ........................................................................................ 21Table 1–28: MultiValue Basic - String Extraction ................................................................................. 23ivMultiValue Basic Quick Reference

1Caché MVBasic Supported FeaturesThe tables in this document list the features of UniVerse Basic and their status in Caché MVBasic. There are two possibilities:• Present – This feature is implemented in Caché MVBasic.• Caché Alternative Exists – The feature is not supported, but much of this functionality is available in other ways inCaché.Rows with neither column checked indicate that the development is still underway. If the word “reserved” appears in acolumn, it indicates that the term is a reserved word, but is not a statement or function in MultiValue Basic.For a quick reference to specific items, use one of the following links:Table 1–1: Reserved Words By Initial LetterA..B..C..D..E..F..G..H..I..J..K..L..M..N..O..P..Q..R..S..T..U..V..W..X..Y..Z..Table 1–2: Other ItemsCompiler Directives@-VariablesString ExtractionConversion CodesFor full details, please refer to the Caché MVBasic Language Reference documentation.MultiValue Basic Quick Reference 1

Caché MVBasic Supported Features1.1 MultiValue Basic Commands, Functions, and ReservedWordsTable 1–3: MultiValue Basic - Reserved Words A...Syntax ItemABORTEABORTMABORTABS()ABSS()acceptConnection()ACCESS()ACOS()addAuthenticationRule()addCertificate()addRequestParameter()ADDS()ALLALPHA()amInitialize()amReceiveMsg()amReceiveRequest()amSendMsg()amSendRequest()amSendResponse()amTerminate()analyzeCertificate()ANDS()ANDARGASCII()ASIN()ASSIGNASSIGNED()PresentXXXXX-XX---XXX--------XXXXXXXCaché Alternative Exists-----X-XXX---XXXXXXXX-------2 MultiValue Basic Quick Reference

MultiValue Basic Commands, Functions, and Reserved WordsSyntax ItemATAN()AUTHORIZATIONAUXMAPTable 1–4: MultiValue Basic - Reserved Words B...Syntax ItemBCONVERTBEFOREBEGINBITAND()BITNOT()BITOR()BITRESET()BITSET()BITTEST()BITXOR()BREAKBSCANBYTE()BYTELEN()BYTETYPE()BYTable 1–5: MultiValue Basic - Reserved Words C...Syntax ItemCALCULATE()CALLINGCALLCAPTURINGCASECATS()CATCENTURY.PIVOT()CHAINCHANGE()CHAR()PresentX--Present-XXXXXXXXXXXXX-XPresentXXXXXXX-XXXCaché Alternative Exists-XXCaché Alternative ExistsX-------------X-Caché Alternative Exists-------X---MultiValue Basic Quick Reference 3

Caché Alternative ExistsPresentSyntax Item--CHARLEN()-XCHARS()-XCHECKSUM()-XCLEARCOMMON-XCLEARDATA-XCLEARFILE-XCLEARINPUT--CLEARPROMPTS-XCLEARSELECT-XCLEAR-XCLOSESEQX-closeSocket()X-CloseXMLData()-XCLOSE-XCOL1()-XCOL2()-XCOMMIT-XCOMMON--COMPARE()-XCOM-XCONTINUE-XCONVERT()-XCONVERT-XCOS()-XCOSH()-XCOUNT()-XCOUNTS()X-createCertification()X-createCertRequest()X-createSecureRequest()X-createSecurityContext()-XCREATE-XCRT4 MultiValue Basic Quick ReferenceCaché MVBasic Supported Features

MultiValue Basic Commands, Functions, and Reserved WordsTable 1–6: MultiValue Basic - Reserved Words D...Syntax ItemDATADATE()DBTOXML()DCOUNT()DEBUGDECLAREDEFFUNDELETE()DELETELISTDELETEUDELETEDELDESCRINFO()DIAGNOSTICSDIGEST()DIMENSIONDIMDIR()DISPLAYDISPLAYWIDTH()DIV()DIVS()DOWNCASE()DODQUOTE()DROUND()DTX()Table 1–7: MultiValue Basic - Reserved Words E...Syntax ItemEBCDIC()ECHOELSEENCODE()PresentXX-XX-XXXXXX---XX-X-XXXXX-XPresentXXX-Caché Alternative Exists--X--X-------X-------------Caché Alternative Exists----MultiValue Basic Quick Reference 5

Caché MVBasic Supported FeaturesSyntax ItemENCRYPT()ENDENTEREOF(arg)EQS()EQUATEEQUEQEREPLACE()ERRMSGERROREXCHANGE()EXECUTEEXECEXITEXP()EXTRACT()Table 1–8: MultiValue Basic - Reserved Words F...Syntax ItemFADD()FDIV()FFIX()FFLT()FIELD()FIELDS()FIELDSTORE()FILEINFO()FILELOCKFILEUNLOCKFINDFINDSTRFIX()FLUSHFMT()Present-XXXXXXXXXX-XreservedXXXPresentXX--XXXXXXXXXXXCaché Alternative ExistsSee class %SYSTEM.Encryption------------reserved---Caché Alternative Exists---------------6 MultiValue Basic Quick Reference

MultiValue Basic Commands, Functions, and Reserved WordsSyntax ItemFMTDP()FMTS()FMTSDP()FMUL()FOLD()FOLDDP()FOOTINGFORMLISTFORFROMFSUB()FUNCTIONTable 1–9: MultiValue Basic - Reserved Words G...Syntax ItemGARBAGECOLLECTGCIgenerateKey()GES()GET(arg)GETgetCipherSuite()GETENV()getHTTPDefault()GETLISTGETLOCALE()GETPTR()GETPU()GETQUEUE()GETREADU()GETREM()getSocketErrorMessage()getSocketInformation()getSocketOptions()GETUSERGROUP()Present-X-XX-XXXXXXPresent---XX--X-X-XX--X----Caché Alternative Exists------------Caché Alternative ExistsXXX---X-X-X-----XXX-MultiValue Basic Quick Reference 7

Caché MVBasic Supported FeaturesSyntax ItemGETUSERID()GETUSERNAME()GETXGEGOSUBGOTOGOGROUP()GROUPSTOREGTS()GTTable 1–10: MultiValue Basic - Reserved Words H...Syntax ItemHASH()HEADINGEHEADINGNHEADINGHUSHPresent---XXXXX-XXPresent---XXCaché Alternative Exists-----------Caché Alternative Exists-----Table 1–11: MultiValue Basic - Reserved Words I...Syntax ItemICHECK()ICONV()ICONVS()IFS()IFILPROMPT()ININ()INCLUDEINDEX()INDEXS()INDICES()initSecureServerSocket()Present-XXXX-X--XXX-Caché Alternative ExistsX-----------X8 MultiValue Basic Quick Reference

MultiValue Basic Commands, Functions, and Reserved WordsSyntax IteminitServerSocket()INMAT()INPUTCLEARINPUTDISPINPUTDPINPUTERRINPUTIFINPUTNULLINPUTTRAPINPUTINPUTERRINSERT()INSINT()ISMB()ISNULL()ISNULLS()ISMV()ISNVS()ISOLATIONITYPE()Table 1–12: MultiValue Basic - Reserved Words K...Syntax ItemKEYEDITKEYEXITKEYIN()KEYTRAPKEYPresent-XX--XX--XXXXX-----reservedXPresent--X-XCaché Alternative ExistsX------------------reserved-Caché Alternative Exists-----Table 1–13: MultiValue Basic - Reserved Words L...Syntax ItemLEFT()LEN()LENDP()PresentXX-Caché Alternative Exists---MultiValue Basic Quick Reference 9

Caché MVBasic Supported FeaturesSyntax ItemLENS()LENSDP()LES()LETLEVELLELISTUSER()LITERALLYLITLN()loadSecurityContext()LOCALEINFO()LOCATELOCKEDLOCKLOOPLOWER()LPTRLTS()LTTable 1–14: MultiValue Basic - Reserved Words M...Syntax ItemMATBUILDMATCHESMATCHFIELD()MATCHMATPARSEMATREADLMATREADUMATREADMATWRITEUMATWRITEMATMAXIMUM()PresentX-XXreservedX-XXX--XXXXXreservedXXPresentXX-XXXXXXXXXCaché Alternative Exists----reserved-----XX-----reserved--Caché Alternative Exists------------10 MultiValue Basic Quick Reference

MultiValue Basic Commands, Functions, and Reserved WordsSyntax ItemMBLEN()MESSAGEMINIMUM()MOD()MODS()MTUMULS()Table 1–15: MultiValue Basic - Reserved Words NSyntax ItemNAPNEG()NEGS()NES()NEXTNENO.ISOLATIONNOBUFNOTS()NOT()NULLNUM()NUMS()Table 1–16: MultiValue Basic - Reserved Words O...Syntax ItemOCONV()OCONVS()OFFONOPENOPENCHECKOPENDEVOPENPATHopenSecureSocket()OPENSEQPresent-reservedXXXreservedXPresentXXXXXX-XXXXXXPresentXXXXX--X-XCaché Alternative Exists-reserved---reserved-Caché Alternative Exists-------------Caché Alternative Exists-----X--X-MultiValue Basic Quick Reference 11

Caché MVBasic Supported FeaturesSyntax ItemopenSocket()ORS()OROUTTable 1–17: MultiValue Basic - Reserved Words P...Syntax ItemPAGEPASSLISTPCDRIVERPERFORMPRECISIONPrepareXML()PRINTPRINTERPRINTERIOPRINTERRPROCREADPROCWRITEPROGRAMPROGPROMPTprotocolLogging()PWR()Table 1–18: MultiValue Basic - Reserved Words QSyntax ItemQUOTE()Present-XXXPresentXX-XX-XX--XXXXX-XPresentXCaché Alternative ExistsX---Caché Alternative Exists--X--X--X------X-Caché Alternative Exists-Table 1–19: MultiValue Basic - Reserved Words R...Syntax ItemRAISE()RANDOMIZEREAD.COMMITTEDREAD.UNCOMMITTEDREADBLKPresentXX--XCaché Alternative Exists-----12 MultiValue Basic Quick Reference

MultiValue Basic Commands, Functions, and Reserved WordsSyntax ItemREADLISTREADLREADNEXTREADSEQreadSocket()READTREADUREADVLREADVUREADVReadXMLData()READREAL()RECIORECORDLOCKED()RECORDLOCKLRECORDLOCKUReleaseXML()RELEASEREMREM()REMOVEREMOVE()REPEATABLE.READREPEATREPLACE()RESETRETURNINGRETURNREUSE()REVREMOVEREWINDRIGHT()RND()PresentXXXX--XXXX-X--XXX-XXXXX-XXXXXXX-XXCaché Alternative Exists----X-----X--X---X----------------MultiValue Basic Quick Reference 13

Caché MVBasic Supported FeaturesSyntax ItemROLLBACKRPC.CALL()RPC.CONNECT()RPC.DISCONNECT()RQMRTNLISTTable 1–20: MultiValue Basic - Reserved Words SSyntax ItemSADD()saveSecurityContext()SCMP()SDIV()SEEK(arg)SEEKSELECTESELECTINDEXSELECTINFO()SELECTNSELECTVSELECTSENDSENTENCE()SEQ()SEQS()SEQSUMSERIALIZABLEsetAuthenticationDepth()setCipherSuite()setClientAuthentication()setHTTPDefault()SETLOCALE()setPrivateKey()setRandomSeed()SETREMPresentX---XXPresentX-XXXXXXXXXX-XXX---------XCaché Alternative Exists-XXX--Caché Alternative Exists-X--------------X-XXXXXXX-14 MultiValue Basic Quick Reference

MultiValue Basic Commands, Functions, and Reserved WordsSyntax ItemsetSocketOptions()SETTINGSETSETENV()showSecurityContext()SIGNATURE()SIN()SINH()SLEEPSMUL()SOAP functionsSORT()SOUNDEX()SPACE()SPACES()SPLICE()SPOOLER()SQLALLOCENVSQLALLOCONNECTSQLALLOCSTMTSQLBINDCOLSQLCANCELSQLCOLATTRIBUTESSQLCONNECTSQLDESCRIBECOLSQLDISCONNECTSQLERRORSQLEXECDIRECTSQLEXECUTESQLFETCHSQLFREECONNECTSQLFREEENVSQLFREESTMTSQLGETCURSORNAMEPresent-X----XXXX-XXXXXX-----------------Caché Alternative ExistsX---XX----X------See the developer materials on Caché SQLSee above.See above.See above.See above.See above.See above.See above.See above.See above.See above.See above.See above.See above.See above.See above.See above.MultiValue Basic Quick Reference 15

Caché MVBasic Supported FeaturesSyntax ItemSQLNUMRESULTCOLSSQLPREPARESQLROWCOUNTSQLSETCONNECT-OPTIONSQLSETCURSORNAMESQLSETPARAMSQRT()SQUOTE()SSELECTNSSELECTVSSELECTSSUB()STARTSTATUS()STATUSSTEPSTOPESTOPMSTOPSTORAGESTR()STRS()submitRequest()SUBROUTINESUBR()SUBS()SUBSTRINGS()SUM()SUMMATION()SWAPSWAP()Table 1–21: MultiValue Basic - Reserved Words T...Syntax ItemTABSTOPPresent------XXXXXXXXXXXXX-XX-XXXXXXX-Present-Caché Alternative ExistsSee above.See above.See above.See above.See above.See above.-------------X--X--------Caché Alternative Exists-16 MultiValue Basic Quick Reference

MultiValue Basic Commands, Functions, and Reserved WordsSyntax ItemTAN()TANH()TERMINFO()THENTIME()TIMEDATE()TIMEOUTTOTPARM()TPRINTTRANS()TRANSACTIONTRIM()TRIMB()TRIMBS()TRIMF()TRIMFS()TRIMS()TTYCTLTTYGETTTYSETTable 1–22: MultiValue Basic - Reserved Words U...Syntax ItemUNASSIGNED()UNICHAR()UNICHARS()UNISEQ()UNISEQS()UNITUNLOCKUNTILUPCASE()UPRINTUSINGPresentXX-XXX-X--XXXXXXXX---PresentXXXXXXXXX-XCaché Alternative Exists------------------XXXCaché Alternative Exists---------X-MultiValue Basic Quick Reference 17

Caché MVBasic Supported FeaturesTable 1–23: MultiValue Basic - Reserved Words W...Syntax ItemWEOFSEQFWEOFSEQWEOFWHILEWORDSIZEWORKWRITEWRITEBLKWRITELISTWRITESEQFWRITESEQWRITETWRITEUWRITEVUWRITEVWRITETable 1–24: MultiValue Basic - Reserved Words X...Syntax ItemXDOM functionsXLATE()XMAP functionsXML functionsXTD()Present-X-X--XXXX-XXXXPresent-X--XCaché Alternative Exists----XX---------Caché Alternative ExistsX-XX-1.2 Conversion CodesThe MultiValue conversion codes listed in the following table can be used in various ways, including the following:• The MVBasic ICONV, ICONVS, OCONV, and OCONVS functions.• The MVBasic FMT and FMTS functions.• Implicit formatting with the MVBasic DISPLAY, CRT, and PRINT statements.• The CMQL query language CONV (or CONVERSION) clause.• The VOC Attribute 7 value.For further details and program examples for individual conversion codes, refer to the ICONV and OCONV functions inthe Caché MVBasic Language Reference.18 MultiValue Basic Quick Reference

Conversion CodesTable 1–25: MultiValue Basic Conversion CodesCode(s)ABBBXCDDIECSFGLMBMCAMC/AMCAXMCBMC/BMCDMCDXMCL, MCUMCM, MC/MMCNMC/NMCPMCTMCWMCWXMCXMCXAMCXDMCXWMDML, MRMMPresentOCONV--OCONVICONV/OCONVICONV/OCONV--ICONV/OCONVICONV/OCONV-ICONV/OCONVOCONVICONV/OCONVICONV/OCONVOCONVOCONVICONV/OCONVICONV/OCONV-ICONV/OCONVOCONVOCONVOCONV-ICONV/OCONVICONV/OCONVICONV/OCONVICONV/OCONVICONV/OCONVICONV/OCONVICONV/OCONV-DescriptionArithmetic and equality functionsBit conversion (binary)Bit conversion (hexadecimal)ConcatenationDate conversionInternal date conversionExtended character set conversionMathematical functionsGroup extractionLength functionBinary conversionMasked character alphabeticMasked character exclude alphabeticMasked character to ASCII conversionMasked character both alphabetic and numericMasked character exclude both alphabetic and numericDecimal to hexadecimal conversionDecimal to hexadecimal conversionMasked lowercase and uppercase conversionMasked multi- and single-byte conversionMasked character numericMasked character exclude numericMasked non-printable character conversionMasked initial capitals conversionMasked wide character conversionMasked wide character to ASCII conversionHexadecimal to decimal conversionCharacter to 8-bit hexadecimal conversionHexadecimal to decimal conversionCharacter to 16-bit (wide) hexadecimal conversionMasked decimal conversionMasked left, right conversionNLS monetary conversionMultiValue Basic Quick Reference 19

Caché MVBasic Supported FeaturesCode(s)MOMPMTMU0CMXMYNLNRPQRSS;val;zerovalTTTIUZVPresent--ICONV/OCONV-ICONV/OCONVOCONV--OCONV-OCONVOCONVOCONVOCONV--OCONVOCONVDescriptionOctal conversionPacked decimal conversionTime conversionHexadecimal Unicode character conversionHexadecimal conversionASCII conversionNLS Arabic numeral conversionRoman numeral conversionPattern-matchingExponential conversionRange functionSoundex conversionSubstitution for non-zero values and zero valuesText extractionFile translationInternational time conversionUser exit to entrypoint . The specified entrypoint mustbe a hexadecimal number.Dynamic array element extraction1.3 Compiler DirectivesTable 1–26: MultiValue Basic - Compiler DirectivesSyntax Item#INCLUDE#PRAGMA$CHAIN$COPYRIGHT$DEFINE$EJECT$IFDEF$IFNDEF$INCLUDEPresentXX-XX-XXXCaché Alternative Exists--------20 MultiValue Basic Quick Reference

System Variables (@ Variables)Syntax Item$INSERT$MAP$PAGE$UNDEFINEPresentX--XCaché Alternative Exists-X--For details, refer to “Compiler Directives” in the Caché MVBasic Language Reference.1.4 System Variables (@ Variables)Table 1–27: MultiValue Basic - @-VariablesSyntax Item@ABORT.CODE@ACCOUNT@AM@ANS@AUTHORIZATION@COMMAND.STACK@COMMAND@CRTHIGH@CRTWIDE@DATA@DATA.PENDING@DATE@DAY@FALSE@FILE.NAME@FILENAME@FM@HDBC@HSTMT@ID@IM@ISOLATION@LEVELPresent-XXXXXXXXXXXXXXXX--XX-XCaché Alternative Exists-----------------------MultiValue Basic Quick Reference 21

Caché Alternative ExistsPresentSyntax Item-X@LOGNAME-X@LPTRHIGH-X@LPTRWIDE-X@MONTH--@MV-X@NB-X@ND-X@NI-X@NS--@NULL.STR--@NULL-X@NV--@OPTION-X@PARASENTENCE-X@PATH-X@RECCOUNT-X@RECORD--@SCHEMA-X@SELECTED-X@SENTENCE-X@SM-X@STDFIL-X@SVM-X@SYS.BELL-X@SYSTEM.RETURN.CODE-X@SYSTEM.SET-X@TERM.TYPE-X@TIME-X@TM--@TRANSACTION.ID--@TRANSACTION.LEVEL-X@TRANSACTION-X@TRUE-X@TTY22 MultiValue Basic Quick ReferenceCaché MVBasic Supported Features

String Extraction OperatorsSyntax Item@UDTNO@UID@USER.NO@USER.TYPE@USER.RETURN.CODE@USERNO@USERn@VM@WHO@YEAR4@YEARPresentXXXXXXXXXXXCaché Alternative Exists-----------For details, refer to “System Variables” in the Caché MVBasic Language Reference.1.5 String Extraction OperatorsTable 1–28: MultiValue Basic - String ExtractionSyntax Item[]PresentXXCaché Alternative Exists--For details, refer to “Operators” in the Caché MVBasic Language Reference.MultiValue Basic Quick Reference 23