UniBasic Commands Reference - Rocket Software

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READVL Syntax READVL var FROM [file.var,] record.ID.expr, attribute.expr [ON ERROR statements] [LOCKED statements] {THEN statements [END] | ELSE statements [END]} READVL var FROM [file.var,] record.ID.expr, attribute.expr [LOCKED statements] [ON ERROR statements] {THEN statements [END] | ELSE statements [END]} Description The UniBasic READVL command assigns the data from an attribute of a record to a variable. READVL checks for locks. If the record is available, it sets a shared lock before it reads the record. Note: UniBasic locks are advisory only. For more information, see Developing UniBasic Applications. You generally use the READVL command when only one or two attributes are needed from a record. If access to more attributes is needed, READ or MATREAD is more efficient. 1-650 UniBasic Commands Reference
Parameters The following table describes each parameter of the syntax. Parameter Description var Specifies the variable to contain the attribute. FROM file.var, Specifies the file from which to read the attribute. If you do not specify a file with file.var, the data is read from the most recently opened default file. record.ID.expr Specifies a record from which to read an attribute. If you do not specify a file.var, UniData reads from the default file. If no default file is open, a fatal error occurs. The default file is one for which no file variable is assigned in the OPEN statement. attribute.expr Specifies an attribute from which to read. ON ERROR statements Specifies statements to execute if the READVL statement fails with a fatal error because the file is not open, an I/O error occurs, or UniData cannot find the file. If you do not specify the ON ERROR clause and a fatal error occurs, the program terminates. LOCKED statements Specifies statements to execute if the record is locked by another user. If you do not specify a LOCKED clause, the program waits until the lock on the record is released. Use the ECL command DEFAULT.LOCKED.ACTION BELL to make the terminal beep while you wait for UniData to unlock the record. THEN statements END THEN executes if the read is successful. END is required to terminate multiline THEN statements. ELSE statements END ELSE executes if the read is not successful or the record (or ID) does not exist. END is required to terminate multiline ELSE statements. READVL Parameters READVL 1-651
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C:\Program Files\Adobe\FrameMaker8\
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The above trademarks are property o
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TRIMB . . . . . . . . . . . . . . .
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UniBasic Commands and Functions Thi
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! ! is a synonym for the * and REM
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#< #< is a synonym for the GE relat
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$BASICTYPE Syntax $BASICTYPE "param
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$DEFINE Syntax $DEFINE var Descript
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In the next example, when you compi
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Example In the following example, t
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Parameters The following table desc
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$UNDEFINE Syntax $UNDEFINE var Desc
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* Syntax expr * expr Synonyms !, RE
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*= Syntax var *= expr Description T
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+= Syntax var += expr Description T
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-= Syntax var -= expr Description T
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= Syntax var /= expr Description Th
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^ Syntax expr1^expr2 Synonym ** Des
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< is a synonym for the LT (less tha
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= 1-55 UniBasic Commands Reference
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=< 1-57 UniBasic Commands Reference
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1-59 UniBasic Commands Reference >
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@ Syntax @(col.expr [,row.expr]) @(
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1-63 UniBasic Commands Reference Op
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Examples In the following example,
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[] Syntax 1-67 UniBasic Commands Re
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{} {} is a synonym for the CALCULAT
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Note: You can use the ECL ON.ABORT
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ABS Syntax ABS(expr) Description Th
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Parameter Description 1-76 UniBasic
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ACTIVATEKEY Syntax ACTIVATEKEY , [
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STATUS Code Example 1-80 UniBasic C
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Parameters 1-82 UniBasic Commands R
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Parameter Description format 1 - PE
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1-86 UniBasic Commands Reference Re
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amInitialize Syntax 1-88 UniBasic C
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amReceiveMsg Syntax amReceiveMsg(hS
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amReceiveRequest Syntax amReceiveRe
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amSendMsg Syntax 1-94 UniBasic Comm
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amSendRequest Syntax amSendRequest(
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amSendResponse Syntax amSendRespons
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amTerminate Syntax amTerminate(hSes
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analyzeCertificate Syntax analyzeCe
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AND Syntax expr1 AND expr2 Synonym
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ASIN Syntax ASIN(expr) Description
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Related Command UniData TERM - For
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BITAND Syntax BITAND(num.expr1,num.
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BITOR Syntax BITOR(num.expr1,num.ex
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BPIOCP Syntax BPIOCP Description Th
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BPIOCPN Syntax BPIOCPN Description
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BREAK Syntax BREAK [KEY] {ON | OFF
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BYTELEN Syntax BYTELEN (string) Des
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CALLC Syntax CALLC c.sub.name [(arg
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CASE Syntax BEGIN CASE CASE express
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In the next example, the program se
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Related Commands UniBasic CATS, SPL
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CHAIN Syntax CHAIN "str.expr" Descr
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CHANGE Syntax CHANGE(string, old.su
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CHAR Syntax CHAR(expr) Description
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CHARLEN Syntax CHARLEN (string) Des
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CHECKSUM Syntax CHECKSUM(str.expr)
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Related Commands UniBasic COMMON, C
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UniData DELETECOMMON, STACKCOMMON -
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CLEARFILE Syntax CLEARFILE [file.va
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CLEARINPUT Syntax CLEARINPUT Synony
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UniQuery GET.LIST, SELECT, SSELECT
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CLOSE Syntax CLOSE [file.var] [ON E
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CLOSESEQ Syntax CLOSESEQ seq.file.v
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closeSocket Syntax closeSocket(sock
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COL1 Syntax COL1( ) Description The
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COMMON Syntax COMMON [/common.name/
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1-161 UniBasic Commands Reference
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UniData DELETECOMMON, STACKCOMMON -
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Related Command UniBasic EXIT 1-165
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COUNT Syntax COUNT(str.expr1, str.e
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COUNTS Syntax COUNTS(expr,str.expr)
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createCertificate Syntax createCert
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createCertRequest Syntax createCert
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Parameter Description The following
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The following table describes the a
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createSecureRequest Syntax createSe
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Method Description The following ta
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DATA Syntax DATA expr1 [,expr2]...
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DBTOXML Syntax DBTOXML(xml_document
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DCOUNT Syntax DCOUNT(str,delim) Des
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DEACTIVATEKEY Syntax DEACTIVATEKEY
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STATUS Code Example The following e
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DEFFUN Syntax DEFFUN function.name
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The preceding program calls the fol
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Examples The following program segm
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Examples The following program stat
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In the next example, the program st
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UniData SQL SELECT - For informatio
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DIGEST Syntax DIGEST(algorithm, dat
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DIR Syntax DIR(file.expr) Descripti
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STATUS Codes DISABLEDEC has the fol
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DISPLAYWIDTH Syntax DISPLAYWIDTH (s
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DQUOTE DQUOTE is a synonym for the
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Related Commands UniBasic PRECISION
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ECHO Syntax ECHO [ON | OFF | expr]
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EDADRV_CloseStmt Syntax RETCODE EDA
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EDADRV_Connect Syntax RETCODE EDADR
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EDADRV_Disconnect Syntax RETCODE ED
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Return Codes The following table de
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Output Variable The following table
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Output Variables The following tabl
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EDADRV_GetDBInfo Syntax RETCODE EDA
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EDADRV_GetEDAAttr Syntax RETCODE ED
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EDADRV_GetErrmsg Syntax RETCODE EDA
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Input Variables The following table
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EDADRV_LoadSymbols Syntax RETCODE E
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Output Variables The following tabl
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Return Codes The following table de
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Input Variables The following table
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STATUS Codes ENABLEDEC has the foll
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Parameter Description dataLoc 1 - D
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Parameters he following table descr
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END Syntax END Description The UniB
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Related Commands UniBasic CALL, CHA
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EQU Syntax EQU constant1 TO value1
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In the next example, UniData replac
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EXECUTE Syntax EXECUTE "str.expr" [
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Parameter Description Reminder: The
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Related Commands UniBasic COMMON, E
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Parameter Description Examples In t
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The program output is: 1-274 UniBas
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EXP Syntax EXP(expr) Description Th
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Options The value of option determi
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FILEINFO Syntax FILEINFO(file.var,
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Code 9 Merge factor percentage 10 S
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FILELOCK Syntax FILELOCK [file.var]
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FILEUNLOCK Syntax FILEUNLOCK [file.
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FIND Syntax FIND expr IN dyn.array[
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Related Commands UniBasic [], FINDS
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FMT Syntax FMT(expr, "len [f.char]
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STATUS Function Return Values After
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FOOTING Syntax FOOTING [ON num.expr
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Related Commands UniBasic GETPTR, H
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This program segment produces the f
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Parameter Description Examples The
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FUNCTION Syntax FUNCTION function.n
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The following program calls the pre
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GE Syntax expr1 GE expr2 Synonyms #
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generateKey Syntax generateKey(priv
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Return Code Status 1-286 UniBasic C
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GET Syntax GET[X] var[,length] [SET
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getHTTPDefault Syntax getHTTPDefaul
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GETLIST Syntax GETLIST list.name [,
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GETQUEUE Syntax GETQUEUE() Descript
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GETREADU Syntax GETREADU() Descript
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getResponseHeader Syntax getRespons
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The following table describes each
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GETUSERGROUP Syntax GETUSERGROUP(ui
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GETUSERNAME Syntax GETUSERNAME(uid)
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Related Commands UniBasic GOSUB, ON
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Parameter Description The replace.n
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This next example compiles and runs
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Related Command UniBasic GTS 1-326
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HASH Syntax HASH(rec.key,modulo,typ
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HUSH Syntax HUSH {ON | OFF | expr}
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ICONV Syntax ICONV(expr,conv.code.e
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The following table describes vario
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Related Command UniBasic OCONV Grou
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Parameters Description Example You
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Parameter Description Example In th
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ICONV Packed Decimal (MP1) Syntax I
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Example The following table describ
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The following table lists conversio
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ICONV Pattern Match (P) Syntax ICON
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ICONV Text Extraction (T) Syntax IC
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ICONV File Translation (Tfile) Synt
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INDEX Syntax INDEX(str.expr1,str.ex
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INDICES Syntax INDICES(file.var[, i
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initSecureServerSocket function Syn
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initServerSocket Syntax initServerS
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INMAT Syntax INMAT( ) INMAT(array.n
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Related Commands UniBasic DIM, MAT,
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Warning: Processing differs when yo
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In the next example, the INPUT stat
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Parameter Description 1-387 UniBasi
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Related Commands UniBasic CLEARINPU
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INPUTERR Syntax INPUTERR error.expr
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INPUTIF Syntax INPUTIF var [THEN st
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INPUTTRAP Syntax INPUTTRAP string.e
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INS Syntax INS expr BEFORE dyn.arra
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INSERT Syntax INSERT(dyn.array.expr
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INT Syntax INT(num.expr) Descriptio
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ISNV Syntax ISNV(expr) Description
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ISNVS Syntax ISNVS(dynamic.array) D
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ITYPE Syntax ITYPE(itype.expr) Desc
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LE Syntax expr1 LE expr2 Synonyms #
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LEN Syntax LEN(str.expr) Descriptio
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LENS Syntax LENS(dyn.array) Descrip
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LISTUSER Syntax LISTUSER() Descript
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LN Syntax LN(num.expr) Description
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The following table describes the s
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LOCATE in BASICTYPEs U, P, and M Th
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However, in the following array, th
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LOOP/REPEAT Syntax LOOP [statements
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Examples The following example is t
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LOWER Syntax LOWER(dyn.array.expr)
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Related Command UniBasic LTS 1-434
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MAT Syntax MAT dim.array = expr MAT
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the values assigned to FEE1 would b
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MATCH Syntax var MATCH "[~] len [X,
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MATCHFIELD Syntax MATCHFIELD(str.ex
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MATPARSE Syntax MATPARSE dim.array
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The preceding program segment produ
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Parameter Description INMAT Functio
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MATREADL Syntax MATREADL dim.array
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Related Commands UniBasic DIM, INMA
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Parameter Description STATUS Functi
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MATWRITEU Syntax MATWRITEU dim.arra
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MAXIMUM Syntax MAXIMUM(dyn.array.va
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MDPERFORM Syntax MDPERFORM str.expr
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MINIMUM Syntax MINIMUM(dyn.array.va
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NE Syntax expr1 NE expr2 Synonyms #
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NEG Syntax NEG(expr) Description Th
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NFAUSER Syntax NFAUSER(“username
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DCOUNT INDEX LEN SEQ SWAP 1-480
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NOTS Syntax NOTS(dyn.array) Descrip
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NUM Syntax NUM(expr) Description Th
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NUMS Syntax NUMS(dyn.array) Descrip
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OCONV Syntax OCONV(expr, conv.code.
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OCONV Date (D) Syntax OCONV(integer
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Note: Following SMA standards, Mond
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Related Commands UniBasic DATE, ICO
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Related Command UniBasic ICONV Grou
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Related Command UniBasic ICONV Leng
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Parameter Description Examples The
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OCONV Masked Decimal (MD) Syntax OC
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Examples The following table descri
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Parameter Description [ [prefix], [
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OCONV Packed Decimal (MP) Syntax OC
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OCONV Right Justify (MR) Syntax OCO
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Examples In the following statement
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Related Commands UniBasic DATE, ICO
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The following table indicates which
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OCONV Pattern Match (P) Syntax OCON
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OCONV Range (R) Syntax OCONV(num.ex
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OCONV SOUNDEX (S) Syntax OCONV(str.
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OCONV Text Extraction (T) Syntax OC
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OCONV File Translation (Tfile) Synt
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OCONVS Syntax OCONVS(dyn.array.expr
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ON/GOSUB Syntax ON expr GOSUB label
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Related Commands UniBasic GOSUB, GO
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openSecureSocket function Syntax op
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OPENSEQ Syntax OPENSEQ [absolutepat
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The following table describes the r
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Example The following example illus
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OSBREAD Syntax OSBREAD var FROM fil
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Writing to Other Types of Files For
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Related Commands UniBasic CLOSESEQ,
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OSREAD Syntax OSREAD var FROM filen
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OSWRITE Syntax OSWRITE expr {ON | T
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PAGE Syntax PAGE [ON num.expr] [exp
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PAUSE Syntax PAUSE [wait_time] Desc
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PCPERFORM Syntax PCPERFORM str.expr
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PERFORM PERFORM is a synonym for th
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Related Command UniData FLOAT.PRECI
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Example The following example illus
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PRINTER Syntax PRINTER {ON | OFF} D
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PRINTERR Syntax PRINTERR expr [FROM
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Code Description Examples In the fo
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PROCREAD Syntax PROCREAD var {THEN
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The following globally cataloged pr
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PROCWRITE Syntax PROCWRITE expr Des
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PROMPT Syntax PROMPT str.expr Descr
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protocolLogging Syntax protocolLogg
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PWR Syntax PWR(num.expr1, num.expr2
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Related Command UniBasic SQUOTE 1-5
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READ Syntax READ dyn.array.var FROM
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Page 642 and 643: Parameters The following table desc
Page 644 and 645: READBCKL Syntax READBCKL dyn.array.
Page 646 and 647: STATUS Function Return Values After
Page 648 and 649: READBCKU Syntax READBCKU dyn.array.
Page 652 and 653: READFWD Syntax READFWD dyn.array.va
Page 654 and 655: Example In the following example, t
Page 658 and 659: Related Commands UniBasic READBCK,
Page 662 and 663: Related Commands UniBasic READBCK,
Page 666 and 667: UniData DEFAULT.LOCKED.ACTION - For
Page 670 and 671: READNEXT Syntax READNEXT id.var [,
Page 672 and 673: Parameter Description Examples In t
Page 674 and 675: READNEXTTUPLE Syntax READNEXTTUPLE
Page 678 and 679: READSEQ Syntax READSEQ var FROM seq
Page 680 and 681: eadSocket Syntax readSocket(socket_
Page 682 and 683: READT Syntax READT [UNIT (mu.expr)]
Page 688 and 689: Related Commands UniBasic CLOSE, DE
Page 694 and 695: Example In the following example, R
Page 698 and 699: READXBCK Syntax READXBCK dyn.array.
Page 700 and 701: READXFWD Syntax READXFWD dyn.array.
Page 702 and 703: ReadXMLData Syntax ReadXMLData(xml_
Page 704 and 705: RECORDLOCKED Syntax RECORDLOCKED (f
Page 710 and 711: RECORDLOCKU Syntax RECORDLOCKU [fil
Page 712 and 713: RELEASE Syntax RELEASE [file.var [,
Page 714 and 715: ReleaseXML Syntax ReleaseXML(XMLhan
Page 716 and 717: Example In the following example, c
Page 718 and 719: Parameter Description The SETTING c
Page 720 and 721: In some implementations, the values
Page 722 and 723: REMOVE Syntax REMOVE(dyn.array.var,
Page 724 and 725: REPLACE Syntax REPLACE(dyn.array.ex
Page 726 and 727: In the next example, the program se
Page 728 and 729: RESIZET Syntax RESIZET [UNIT(mu.exp
Page 730 and 731: RETURN Syntax RETURN [TO label[:]]
Page 732 and 733: Examples In the following example,
Page 736 and 737: RNDSEED Syntax RNDSEED expr Descrip
Page 738 and 739: SADD Syntax SADD(x, y) Description
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SELECT Syntax SELECT file.var [TO {
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SELECTINDEX Syntax SELECTINDEX inde
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Related Commands UniBasic DELETELIS
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Related Commands UniBasic DELETELIS
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Note: SEND with the X option suppre
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SEQS Syntax SEQS("char.expr") Descr
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setHTTPDefault Syntax setHTTPDefaul
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setPrivateKey Syntax setPrivateKey(
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setRandomSeed Syntax setRandomSeed(
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setRequestHeader Syntax setRequestH
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setSocketOptions Syntax setSocketOp
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showSecurityContext Syntax showSecu
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SIGNATURE Syntax SIGNATURE(algorith
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Return Code Status 1-742 UniBasic C
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SLEEP Syntax SLEEP [hh:mm[:ss]] [se
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SMUL Syntax SMUL(x, y) Description
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Return Codes The return code indica
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The following table describes each
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SOAPGetDefault Syntax SOAPGetDefaul
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SOAPGetFault Syntax SOAPGetFault(re
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SOAPGetResponseHeader Syntax SOAPGe
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SOAPRequestWrite Syntax SOAPRequest
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SOAPSetDefault Syntax SOAPSetDefaul
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Along with SOAPSetDefault, the Call
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You can also use the UniBasic STATU
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SOUNDEX Syntax SOUNDEX(expr) Descri
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SPACE Syntax SPACE(expr) Descriptio
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SPLICE Syntax SPLICE(expr1,"expr",
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SQLAllocConnect Syntax status = SQL
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SQLAllocEnv Syntax status = SQLAllo
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SQLAllocStmt Syntax status = SQLAll
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SQLBindCol Syntax status = SQLBindC
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SQLBindParameter Syntax status = SQ
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SQLCancel Syntax status = SQLCancel
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SQLColAttributes Syntax status = SQ
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1-796 UniBasic Commands Reference C
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SQLColumns Syntax status = SQLColum
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Return Values The following table d
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Parameter Description Return Values
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ODBC Data Sources When a program is
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SQLExecDirect Syntax status = SQLEx
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SQLExecute tells the data source to
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SQLGetInfo Syntax status = SQLGetIn
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1-826 UniBasic Commands Reference S
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Return Values The following table l
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SQLNumParams Syntax status = SQLNum
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SQLNumResultCols Syntax status = SQ
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SQLParamOptions Syntax status = SQL
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Example This example shows how you
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ODBC Data Sources If you execute a
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SQLRowCount Syntax status = SQLRowC
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SQLSetConnectOption Syntax status =
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SQLSetParam SQLSetParam is a synony
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For complete details about the SQLS
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Parameter Description tablename Nam
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TYPE Smallint Not null 1-858 UniBas
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SQLTables Syntax status = SQLTables
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SQRT Syntax SQRT(num.expr) Descript
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SSUB Syntax SSUB(x, y) Description
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STOP Syntax STOP [expr] Description
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STR Syntax STR(str.expr, num.expr)
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STRS Syntax STRS(dyn.array, expr) D
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If the response status indicates th
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SUBROUTINE Syntax SUBROUTINE sub.na
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SUBROUTINE (Update Trigger) Syntax
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Tip: The UniBasic STATUS function r
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SUBROUTINE (Delete Trigger) Syntax
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Tip: The UniBasic STATUS function r
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Related Commands UniBasic DEL, INSE
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In the next example, SWAP does not
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TAN Syntax TAN(num.expr) Descriptio
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TIMEDATE Syntax TIMEDATE( ) Descrip
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TRANSACTION START Syntax TRANSACTIO
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TRIM Syntax TRIM(str.expr[,char[,ty
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Related Commands UniBasic TRIMB, TR
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TRIMF Syntax TRIMF(str.expr) Descri
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UNLOCK Syntax UNLOCK [num.expr] Des
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UPCASE Syntax UPCASE(string.expr) D
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Related Commands UniBasic PAUSE Uni
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Related Commands UniBasic CLOSESEQ,
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Related Commands UniBasic CLOSE, DE
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The following table describes the r
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WRITEU Syntax WRITEU expr {ON | TO}
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Return Value Description Example In
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The following example is taken from
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ASCII Character Codes This appendix
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A-3 UniBasic Commands Reference ASC
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A-11 UniBasic Commands Reference AS
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UniBasic@variables This appendix li
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B-3 UniBasic Commands Reference @va
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@USER0 @USER1 @USER2 @USER3 @USER4
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B-7 UniBasic Commands Reference @SY
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B-9 UniBasic Commands Reference Uni
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C-2 UniBasic Commands Reference Ari
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C-4 UniBasic Commands Reference Boo
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Reserved Words This appendix lists
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D-3 UniBasic Commands Reference Res
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Commands Affected by BASICTYPEs and
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Command or Function E-3 UniBasic Co
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F-2 UniBasic Commands Reference Com
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SUBROUTINE (Update Trigger) SUBROUT
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UniBasic Commands Reference - Rocket Software

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