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There are only 2 ways that I know of to do this. One is to write a code generator program, the other is via embedded SQL. Here is a sample of the embedded SQL. Hope this helps!!! Thanks, Tommy Holden -----Original Message----- From: rpg400-l-bounces@xxxxxxxxxxxx [mailto:rpg400-l-bounces@xxxxxxxxxxxx]On Behalf Of Lim Hock-Chai Sent: Friday, March 18, 2005 10:45 AM To: RPG programming on the AS400 / iSeries Subject: RE: Variable Variable names Clarify. Datastructure mentioned below should be an external datastructure. -----Original Message----- From: rpg400-l-bounces@xxxxxxxxxxxx [mailto:rpg400-l-bounces@xxxxxxxxxxxx]On Behalf Of Lim Hock-Chai Sent: Friday, March 18, 2005 10:26 AM To: RPG programming on the AS400 / iSeries Subject: RE: Variable Variable names There is no such bif in RPG. It is possible if all those variables are in a datastrucure. You can use an api to get a list of field location of the datastructure and then use %subst to get the value. -----Original Message----- From: rpg400-l-bounces@xxxxxxxxxxxx [mailto:rpg400-l-bounces@xxxxxxxxxxxx]On Behalf Of PAPWORTH Paul Sent: Friday, March 18, 2005 9:28 AM To: rpg400-l@xxxxxxxxxxxx Cc: GAZIN Florence; DEVILLE Jacques Subject: Variable Variable names Does any one know if it is possible in RPG (or any other i_series) language to do the following Ws_work_zone = %pgmvar(var) %pgmvar would be a function which would allow you to get the contents of a variable , whose name is contained in a variable. Eg if in my imaginary function var contains the name of a field 'FRED' , and FRED contains 'ABC' , I would end up with 'ABC' in ws_work_zone Many thanks in advance -- This is the RPG programming on the AS400 / iSeries (RPG400-L) mailing list To post a message email: RPG400-L@xxxxxxxxxxxx To subscribe, unsubscribe, or change list options, visit: http://lists.midrange.com/mailman/listinfo/rpg400-l or email: RPG400-L-request@xxxxxxxxxxxx Before posting, please take a moment to review the archives at http://archive.midrange.com/rpg400-l. -- This is the RPG programming on the AS400 / iSeries (RPG400-L) mailing list To post a message email: RPG400-L@xxxxxxxxxxxx To subscribe, unsubscribe, or change list options, visit: http://lists.midrange.com/mailman/listinfo/rpg400-l or email: RPG400-L-request@xxxxxxxxxxxx Before posting, please take a moment to review the archives at http://archive.midrange.com/rpg400-l. -- This is the RPG programming on the AS400 / iSeries (RPG400-L) mailing list To post a message email: RPG400-L@xxxxxxxxxxxx To subscribe, unsubscribe, or change list options, visit: http://lists.midrange.com/mailman/listinfo/rpg400-l or email: RPG400-L-request@xxxxxxxxxxxx Before posting, please take a moment to review the archives at http://archive.midrange.com/rpg400-l.
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H DFTACTGRP(*NO)
H OPTION(*SRCSTMT: *NODEBUGIO: *NOSHOWCPY)
/copy prodkr/qcopysrc,clcmdexec
/copy prodkr/qcopysrc,getcurdb
?* SQLDA Descriptor Area
D SQLDA DS
D SQLDAID 1 8A
D SQLDABC 9 12B 0
D SQLN 13 14B 0
D SQLD 15 16B 0
D SQL_VAR 80A DIM(400)
D SQL_Data_Type 17 18B 0
D SQL_Var_Len 19 20B 0
D SQL_Resrvd 21 32A
D SQL_Data_Pntr 33 48*
D SQL_Null_Ind 49 64*
D SQL_Name_Len 65 66B 0
D SQL_Col_Name 67 96A
?* SQLDA Variable Data
D SQLVAR DS
D SQLTYPE 1 2B 0
D SQLLEN 3 4B 0
D SQLRES 5 16A
D SQLDATA 17 32*
D SQLIND 33 48*
D SQLNAMELEN 49 50B 0
D SQLNAME 51 80A
?* SQLDA Variable Data (Extended)
D SQLVAR2 DS
D SQLLONGL 1 4B 0
D SQLRSVDL 5 32A
D SQLDATAL 33 48*
D SQLTNAMELN 49 50B 0
D SQLTNAME 51 80A
?* Work Variables
D File s 10a
D Lib s 10a
D TempFile s 10a
D TempLib s 10a
Drowcountx s 10I 0
DOrdinal s 10I 0
DColName s 10a
DDataType s 8a
DLength s 10i 0
DScale s 10i 0
Dn1 s 4b 0
DPuNo s 6a
DDatabaseName s 100a
D XLSPath s 100a
D SQLSelect s 5000a Varying
DColumnNumber s 10i 0
D RecordData s 32766a
DElement s 10i 0
?* Parameter Entry
C *Entry PList
C Parm FileName 20
C Parm TemplateFile 20
C Parm XLSPath
?* SQL Error Trapping
c/exec sql
c+ Whenever SQLError Continue
c/end-exec
/free
//?* Extract The Input File Name
//?* & Load The Output Path If Not Specified
If XLSPath=*Blanks;
XLSPath='/tmp/xl.xls';
EndIf;
File=%Subst(FileName:1:10);
Lib=%Subst(FileName:11:10);
TempFile=%Subst(TemplateFile:1:10);
TempLib=%Subst(TemplateFile:11:10);
//?* Override The Database File Being Processed
CmdStr='OVRDBF '+%Trim(File)+' '+
%Trim(Lib)+'/'+%Trim(File)+
' Share(*Yes)';
CmdStrSize=%Len(%Trim(CmdStr));
monitor;
Run(CmdStr:CmdStrSize);
on-error;
endmon;
//?* Build The Dynamic Excel Generation Program
ExSR SQLSelectBuild;
/end-free
c/exec sql
c+ Prepare SQLExtract From :SQLSelect
c/end-exec
c Eval SqlN=1
C/exec sql
c+ Describe SQLExtract Into :SQLDA
c/end-exec
c Eval SqlN=SqlD
c Eval SQLABC=SqlN*%Len(SqlVar)+16
c/exec sql
c+ Describe SQLExtract Into :SQLDA
c/end-exec
c/exec sql
c+ Declare SQL_Extract Cursor For SQLExtract
c/end-exec
c/exec sql
c+ open SQL_Extract Using Descriptor :SQLDA
c/end-exec
c DoU SqlCod=100
c/exec sql
c+ Fetch SQL_Extract Into Descriptor :SQLDA
c/end-exec
c If SqlCod=100
c/exec sql
c+ Close SQL_Extract
c/end-exec
c Leave
c EndIf
c ExSR ExtractData
c EndDo
/free
//?* Terminate
*inlr = *on;
BegSR ExtractData;
For Element = 1 By 1 To SqlD;
SQLVAR=SQL_VAR(Element);
EndFor;
EndSR;
/end-free
?*
?* Build SQL Select Statement From Template File
C SQLSelectBuildBegSR
C Eval SQLSelect='Select '
?* Declare The SQL Cursor
c/exec sql
c+ Declare StringBuild Cursor
c+ For Select Column_Name,Data_Type,Length,Numeric_Scale,
c+ Ordinal_Position From SYSCOLUMNS
c+ Where System_Table_Name= :TempFile And
c+ System_Table_Schema = :TempLib
c+ Order By Ordinal_Position
c/end-exec
?* Open The SQL Cursor
c/exec sql
c+ Open StringBuild
c/end-exec
?* Error Occurred On Open
c If SQLCod<0
c LeaveSR
c EndIf
?* Load The Source Code For All Fields In the File
c Eval rowcountx=4
c DoU SQLCod=100
c/exec sql
c+ Fetch StringBuild Into :ColName,:DataType,:Length,
c+ :Scale:n1,:Ordinal
c/end-exec
?* End Of Records
c If SQLCod=100
c Leave
c EndIf
?* Error On Fetch
c If SQLCod<0
c Iter
c EndIf
c Eval SQLSelect=%Trim(SQLSelect)+' '+
c %Trim(ColName)+','
c EndDo
c Eval Length=%Len(%Trim(SQLSelect))
c Eval SQLSelect=%Subst(SQLSelect:1:Length-1)
c Eval SQLSelect=%Trim(SQLSelect)+
c ' From '+%Trim(Lib)+'/'
c +%Trim(File)
c EndSR
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