Caché ObjectScript Reference - InterSystems Documentation

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System and Other FunctionsParametersnA boolean switch to set the default setting. 0 specifies to retain the extended global reference;this enables reference-in-kind as a default. 1 specifies to strip the extended global referenceand return just the global; this disables reference-in-kind as a default. The system defaultsetting is 0.The 1 value for n is provided for backward compatibility.See Also• $NAME function• $QUERY function• $ZUTIL(69,7) Strip Extended Global References System-wide function$ZUTIL(68,11)Enables or disables read line recall for the current process.$ZUTIL(68,11,n)$ZU(68,11,n)ParametersnThe boolean value that specifies whether read line recall mode is enabled for thecurrent process.DescriptionThe $ZUTIL(68,11) function enables or disables read line recall for the current process.This system-wide default behavior can be configured using the $ZUTIL(69,11) function.Refer to $ZUTIL(69,11) — Read Line Recall Mode System Default.You can also enable read line recall for a device, overriding the current status of this feature.To do so, you include the R protocol in an OPEN or USE command for that device. SeeTerminal I/O in Caché I/O Device Guide for details on using protocols.Invoking $ZUTIL(68,11) without specifying n returns the current switch setting.606 Caché ObjectScript Reference
ParametersnThe boolean switch that controls read line recall mode.$ZUTIL(68,15)01Disables read line recall mode.Enables read line recall mode. The system default setting is 1.See Also• $ZUTIL(69,11) Read Line Recall Mode System Default function• Terminal I/O in Caché I/O Device Guide$ZUTIL(68,15)Enables or disables I/O device disconnect detection for the current process.$ZUTIL(68,15,n)$ZU(68,15,n)ParametersnThe boolean value that specifies whether Caché detects I/O disconnection.DescriptionThe $ZUTIL(68,15) function determines how Caché responds to the disconnection of theprincipal I/O device being accessed from the current process. When set to 1, the processreceives a error when a disconnect is detected during a Caché ObjectScript READor WRITE command to the device. This is known as “error on disconnect.” When set to 0,the process exits without reporting an error to the application when a disconnect is detected.The default is 0.You should be aware that when error on disconnect is enabled, a process continues to executeafter its principal device has been disconnected. It is the responsibility of the application todetect the disconnect condition and exit gracefully. Use care when enabling error on disconnect.The application must be prepared to recognize the error and handle it appropriatelyin error traps.Caché ObjectScript Reference 607
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Caché ObjectScriptReferenceVersion
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Table of ContentsSymbols and Abbrev
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$ORDER ............................
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$ZB ...............................
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$ZUTIL(68,21) .....................
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$ZUTIL(128,1) .....................
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List of FiguresClient/Server Connec
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Symbols and AbbreviationsSymbol""##
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Symbols and AbbreviationsSymbol( )*
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Symbols Used in Caché ObjectScript
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Abbreviations Used in Caché Object
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Abbreviations Used in Caché Object
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Caché ObjectScript CommandsThis do
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BREAKBREAK without an ArgumentArgum
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BREAKNote:BREAK 0 is ineffective in
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DescriptionCLOSE device releases ow
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ArgumentspcAn optional postconditio
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outine with or without parameter pa
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The Argumentless DO CommandThe argu
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DOMainSET x=1,y=2,z=3WRITE !,"In Ma
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The DO command has a postconditiona
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DO WHILE• QUIT command• Argumen
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DO WHILEQUIT and GOTOThe QUIT comma
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ELSEELSEClause of block-oriented IF
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DescriptionFOR is a block-oriented
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FORMainloopFOR {READ !,"Number: ",n
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cution of the loop. The FOR loop te
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a range with initial value, increme
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ArgumentspcAn optional postconditio
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GOTOtestgotoAWRITE !,"running A"DO
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HALTIn the following example, HALT
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HANGNote:You cannot express hangtim
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ELSEIF and ELSE clauses are optiona
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JOBMainloopNEW sex,ageREAD !,"What
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JOBpcroutineroutine-paramsclassname
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have a formal parameter list with t
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JOBParameterprincipal-outputDescrip
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a jobbed process, you can use param
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Caché ObjectScript CommandsRemote
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Caché ObjectScript Commands• If
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Caché ObjectScript Commandsserver
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Caché ObjectScript CommandsDescrip
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Caché ObjectScript CommandsNotesKI
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Caché ObjectScript CommandsThe nod
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Caché ObjectScript CommandsLOCK Wi
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Caché ObjectScript Commandslocknam
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Caché ObjectScript Commands• Set
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Caché ObjectScript Commands• ^c
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Caché ObjectScript CommandsLocking
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Caché ObjectScript CommandsMERGEMe
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Caché ObjectScript CommandsInitial
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Caché ObjectScript CommandsNEWCrea
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Caché ObjectScript Commandssaves t
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Caché ObjectScript CommandsIn the
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Caché ObjectScript CommandsOPENAcq
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Caché ObjectScript Commands• Dev
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Caché ObjectScript Commandsmnespac
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Caché ObjectScript CommandsFor som
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Caché ObjectScript Commands• Wit
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Caché ObjectScript CommandsQUITTer
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Caché ObjectScript CommandsQUIT an
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Caché ObjectScript CommandsTest WR
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Caché ObjectScript CommandsThe var
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Caché ObjectScript CommandsNote th
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Caché ObjectScript CommandsA timeo
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Caché ObjectScript CommandsType of
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Caché ObjectScript CommandsReading
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Caché ObjectScript CommandsSETAssi
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Caché ObjectScript Commandswas cre
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Caché ObjectScript Commandswith th
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Caché ObjectScript CommandsFor exa
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Caché ObjectScript CommandsThe fol
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Caché ObjectScript CommandsDescrip
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Caché ObjectScript CommandsTROLLBA
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Caché ObjectScript CommandsArgumen
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Caché ObjectScript CommandsSee Als
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Caché ObjectScript CommandsSET ^a(
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Caché ObjectScript CommandsThe par
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Caché ObjectScript Commandsword) w
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Caché ObjectScript Commands• Log
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Caché ObjectScript Commands• VIE
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Caché ObjectScript CommandsAfter r
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Caché ObjectScript CommandsModen >
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Caché ObjectScript CommandsQUIT an
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Caché ObjectScript CommandsWRITEDi
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Caché ObjectScript CommandsfA form
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Caché ObjectScript CommandsMnemoni
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Caché ObjectScript CommandsCode-1-
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Caché ObjectScript CommandsAfter C
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Caché ObjectScript CommandsXECUTE
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Caché ObjectScript FunctionsA func
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$ASCII$ASCIIReturns the character c
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$ASCIISTSET String="ThIs Is a MiXeD
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$BIT// Set a to [0,0,1,1]SET $BIT(a
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ExamplesIf bitstring= [0,0,1,1,0],
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If bitstring = [0,0,1,1,0], when se
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$BITLOGICNote:When $BITLOGIC is sup
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See Also• $BIT function• $BITCO
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$CHARREAD "Input a number 1-3: ",xS
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$CHARABCACYou can use decimal numer
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$DATAStatusValue011011MeaningThe va
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$DATAWhen executed, this code might
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Because numbers generated by $DOUBL
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$EXTRACT$EXTRACTExtracts specified
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is an asterisk, $EXTRACT returns th
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$EXTRACTSET x="ABCD"SET $EXTRACT(x,
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$FACTOR• $ZEXP function• $ZLN f
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$FIND$FINDFinds a substring by valu
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$FNUMBER• $LIST function• $PIEC
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You can include the decimal option
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$GET$GETReturns the data value of a
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$GETIF $GET(^client(i))="" { QUIT }
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The num parameter can be a positive
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$INCREMENTKILL xyzWRITE !,$INCREMEN
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DescriptionThe $INUMBER function va
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$INUMBER• No sign or parentheses.
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In the following example, $INUMBER
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$ISVALIDNUMSET a="certainly not an
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$ISVALIDNUMmin and maxYou can speci
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$NORMALIZE parses multiple trailing
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the end of width. If the expression
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In the following example, the first
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$LIST• $LIST(list) returns the fi
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If the value of the position parame
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$LISTBUILDresults of $LISTBUILD are
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In the following example, ZZDUMP sh
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$LISTFINDSET x=$CHAR(0,0,0,1,16,27,
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If the value of the startafter para
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$LISTGET• $LISTFIND function• $
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If the value of the position parame
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$LISTNEXT$LISTNEXTRetrieves element
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Description$LISTSAME compares the c
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$LISTTOSTRING• $LISTNEXT• $LIST
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$NAME$NAMEReturns the name value of
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with a naked reference to return th
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$NEXT$NEXTReturns the value of the
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The scale parameter value causes th
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• Trailing + and - signs: Both fu
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• Rounding factor: an integer ind
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leading and trailing zeros, and del
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For unsubscripted local variables,
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$ORDER$ORDER Uses Naked Global Refe
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ParametersplistThe target string fr
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In the following example, both $PIE
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The following examples also returns
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$QLENGTH$QLENGTHReturns the number
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$QSUBSCRIPTCode< -1-10nReturn Value
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ExampleThis example presents a gene
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function uses a naked reference to
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$REVERSE$REVERSEReturns the charact
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or immediately after a $SELECT func
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If successful, $SORTBEGIN returns a
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$STACKDOXECUTE$$ECODEReturned when
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$STACK$STACK Code String Arguments
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$TEXTroutineIf specified alone, it
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$TRANSLATE$TRANSLATEPerforms charac
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$VIEW$VIEWReturns the contents of m
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double quotes. If the length parame
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$VIEWStart OPEN 63WRITE !,"Opening
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Math and Time FunctionsThe followin
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$ZARCSINREAD "Input a number: ",num
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$ZCOS210-1returns 1.107148717794090
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ParametersnAn angle in radians, spe
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$ZDATE$ZDATEValidates date and conv
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ParametershdateThe internal date fo
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$ZDATE“Jan Feb Mar Apr May Jun Ju
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$ZDATEerroptThis parameter suppress
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oth of the above lines generate a
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$ZDATE• $ZDATETIME function• $Z
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is a date, the second integer is a
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$ZDATEHSyntaxMmmmmMeaningFull name
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When yearopt=5, endwin is a numeric
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• If you specify an invalid dform
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• You can use the $ZDATEH functio
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• $ZDATETIME(hdatetime) returns t
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$ZDATETIMEtformatA numeric value th
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$ZDATETIMEThe monthlist string has
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$ZDATETIMEmindateA numeric value th
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ODBC date format (dformat=3) will a
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$ZDATETIMEH$ZDATETIMEHValidates dat
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$ZDATETIMEH• The format Mmm DD YY
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$ZDATETIMEHValue678MeaningExpress t
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$ZDATETIMEHstartwinA numeric value
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• If you specify an otherwise val
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$ZEXP$ZEXPReturns the natural logar
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ParametersnumA string value or a nu
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ExamplesThe following example write
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$ZPOWERgenerates an error.See Also
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values to the corresponding multipl
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an error. You can use the absolute
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$ZTIME$ZTIMEConverts the internal s
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In the examples that follow, Htime
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$ZTIMEH$ZTIMEHConverts a time value
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$ZTIMEHTime DelimiterBy default, Ca
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Routine, Debugging, and Other Comma
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Caché ObjectScript Special Variabl
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Structured System VariablesA struct
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the $ZNSPACE special variable to de
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^$JOB• ZNSPACE command• $ZNSPAC
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^$LOCKSET x=$QUERY(^$JOB(""))WRITE
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The following example tests for the
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DescriptionYou can use the ^$ROUTIN
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^$ROUTINE• $ORDER function• $QU
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System and Other Functionsnumbers,
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System and Other FunctionsThe bit_o
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System and Other FunctionsWRITE $ZB
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System and Other Functions$ZCONVERT
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System and Other FunctionsEncoding
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System and Other FunctionsDescripti
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System and Other FunctionsNote that
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System and Other FunctionsDeclarati
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System and Other Functionstypedef s
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System and Other FunctionsError Mes
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System and Other Functions$ZF(-2)Ex
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System and Other Functions$ZF(-3) c
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System and Other FunctionsEstablish
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System and Other Functions$ZISWIDEC
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System and Other FunctionsSee Also
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System and Other FunctionsParameter
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System and Other FunctionslangAn in
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System and Other FunctionsZNSPACE "
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System and Other Functions$ZPOSITIO
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Page 606 and 607: System and Other FunctionsAny form
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Page 610 and 611: System and Other Functions• $ZUTI
Page 612 and 613: System and Other FunctionsSubfuncti
Page 614 and 615: System and Other FunctionsExampleTh
Page 618 and 619: System and Other Functions• $ZUTI
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Page 650 and 651: System and Other Functions• $GET
Page 654 and 655: System and Other Functionsor "RW" m
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System and Other FunctionsTCOMMIT c
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System and Other Functionsa $ZDATE
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System and Other FunctionsThis conf
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System and Other FunctionsNotes$ZUT
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System and Other Functions$ZUTIL(69
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System and Other FunctionsWRITE $ZD
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System and Other FunctionsEvery tim
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System and Other Functions• $TEST
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System and Other FunctionsValue6789
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System and Other Functionsreturns:
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System and Other FunctionsFlag67891
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System and Other Functions• $ZUTI
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System and Other Functions8: regula
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System and Other FunctionsUSER>WRIT
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System and Other Functionsas the cu
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System and Other Functions• Go to
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System and Other FunctionsNote:Beca
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System and Other Functions• $ZUTI
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System and Other FunctionsExampleTh
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System and Other Functions• $ZLCH
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System and Other FunctionsConversio
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System and Other Functions$ZZENKAKU
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The %ZLANG Language Extension Libra
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Legacy Commands and FunctionsLegacy
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DescriptionDO (legacy version)Note:
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When a block ends, as indicated by
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See Also• DO command• $TEST spe
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FOR (legacy version)increment is po
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len-2, only the last character will
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FOR (legacy version)Incrementing wi
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IF (legacy version)IF (legacy versi
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DescriptionZQUIT (legacy command)No
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ZQUIT (legacy command)For example:Z
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$ZBITFIND (legacy function)$ZBITCOU
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ParameterspositionValue or expressi
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esulting bitstring is 1 in all posi
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DescriptionThis page describes the
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$ZUTIL(67,4) (legacy function)• $
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$ZUTIL(67,5) (legacy function)pstat
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$ZUTIL(67,6) (legacy function)$ZUTI
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$ZUTIL(67,7,pid) returns a string c
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Code6064687276808488961041081161401
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$ZUTIL(67,12) (legacy function)$ZUT
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ParameterspidA process ID number. T
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ExamplesThe following is the hexade
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SYS.Process MethodsYou can get the
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See Also$ZUTIL(133) (legacy functio
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or a counter's name or description
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$ZUTIL(133) (legacy function)1. Cal
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