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Chris,

Just passing through your code quickly just brings to mind a dim memory...
As I recall, whenever you use the LIKE op in the WHERE clause, it forces SQL
to revert to table-scan process, where every record in the file is tested
individually.  It absolutely will not allow the use of index bitmaps for
record selection, and performance is about what you'd expect for a string
scan....  

Try changing your logic to something like this...

C+   (Left(PNUM95,7) = '* LABOR'  OR              
C+    Left(PNUM95,6) = '*LABOR') and           

and see if it helps....

You didn't say if you ran the job in debug mode, so if you did not, I
suggest you try it and look in you joblog for the query optimizer messages.
They'll give an explanation of some of the issues the optimizer had with
your query.     

Eric DeLong
Sally Beauty Company
MIS-Project Manager (BSG)
940-898-7863 or ext. 1863



-----Original Message-----
From: Chris Payne [mailto:CPayne@xxxxxxxxxxxxxxx]
Sent: Wednesday, July 07, 2004 1:10 PM
To: 'rpg400-l@xxxxxxxxxxxxx'
Subject: SQL embeded in RPG with passed parameters won't use indexes


Hello,
        I have an RPG ILE program in which I embedded a cursor. I created a
index on date (dtmv95) for the cursor to hit when I open the file. It worked
like a charm. But then I changed the date range in the cursor from being
static to being brought in by a prompt. Now my program will not use my index
when it opens the cursor, it fails with reason code 6 which means that "The
keys of the access path did not match the fields specified for the join
criteria."  I think that the optimizer is not 'seeing' the date criteria in
my select because they depend on variables, but I have no idea what to do
about it. Does anyone out there have any experience with this problem?

Below is the code

H  dftactgrp(*no) actgrp(*caller)                                
dmain             pr                  extpgm('labor')            
d startdate                     15p 5                            
d enddate                       15p 5                            
                                                                 
dmain             pi                                             
d startdate                     15p 5                            
d enddate                       15p 5                            
                                                                 
d thearray        ds                                             
d cono                           2a                              
d item                          16a                              
d pdate                          7p 0                            
d labor_$                        6p 0                            
d shift                          2p 0                            
d pgmn                           1p 0                            
                                                                        
D dclcursorC1     pr                                                    
D opencursorC1    pr                                                    
D fetchcursorC1   pr              n                                     
D UpdateDirect    pr              n                                     
D UpdateIndirect  pr              n                                     
D UpdateTemp      pr              n                                     
D AddRecord       pr                                                    
D closecursorC1   pr                                                    
                                                                        
 /free                                                                  
  dclcursorC1();                                                        
  opencursorC1();                                                       
  dow fetchcursorC1();                                                  
     if (item = '* LABOR-DIRECT' or item = '*LABOR-DIR PC1' or item =   
      'Labor-DIR PC2' or item = '* LABOR CPR DRT' or item =             
      '* LABOR-DIR WHS' or item = '* LABOR-DIR SEQ' or item =           
      '* LABOR-DIR PNT');                                          
       if not(UpdateDirect());                                    
          AddRecord();                                            
          UpdateDirect();                                         
       endif;                                                     
    elseif (item = '* LABOR-INDIR' or item = '*LABOR-IND PC1' or  
     item = '*LABOR-IND PC2' or item = '* LABOR-IND WHS' or       
     item = '* LABOR-IND SEQ' or item = '* LABOR-IND PNT');       
       if not(Updateindirect());                                  
          AddRecord();                                            
          UpdateIndirect();                                       
       endif;                                                     
    elseif (item = '* LABOR-TEMP' or item = '*LABOR-TEMP PC1' or  
     item = '*LABOR-TEMP PC2' or item = '* LABOR-TEMP WHS' or     
     item = '* LABOR-TEMP SEQ' or item = '* LABOR-TEMP PNT');     
       if not(UpdateTemp());                                      
          AddRecord();                                            
           UpdateTemp();                              
        endif;                                        
     else;                                            
        //disaster                                    
     endif;                                           
  enddo;                                              
  closecursorC1();                                    
  *inlr = *on;                                        
 /end-free                                            
                                                      
                                                      
                                                      
                                                      
 *Function definitions                                
p dclcursorC1     b                                   
C/Exec SQL                                            
C+ DECLARE labor CURSOR FOR                           
C+ SELECT                                        
C+   cono95,                                     
C+   pnum95,                                     
C+   dtmv95,                                     
C+   mqty95,                                     
C+   nshf62,                                     
C+   decimal(substr(pgmn35,1,1),1)               
C+ FROM                                          
C+   OSLD1F3/INP95 T01,                          
C+   OSLPDF3/PCP62 T02,                          
C+   OSLD1F3/INP35 T03                           
C+ WHERE                                         
C+   CONO95 = CONO35  AND                        
C+   PNUM95 = PNUM35  AND                        
C+   CONO95 = CONO62  AND                        
C+   PNUM95 = COMP62  AND                        
C+   TMMV95 >= REFT62-1  AND                     
C+   TMMV95 <= REFT62  AND                    
C+   REFD95 = REFD62  AND                     
C+   CONO95 >= '02'  AND                      
C+   CONO95 <= '10'  AND                      
C+   (PNUM95 LIKE '* LABOR%'  OR              
C+   PNUM95 like '*LABOR%') and               
C+   DTMV95 >= :startdate and                 
C+   dtmv95 <= :enddate                       
C+ FOR READ ONLY WITH NC                      
C/End-Exec                                    
p dclcursorC1     e                           
                                              
p opencursorC1    b                           
C/Exec SQL                                    
C+ OPEN labor                                 
C/End-Exec                                    
p opencursorC1    e                           
p fetchcursorC1   b                                               
D                 pi              n                               
d continueread    s               n                               
C/Exec SQL                                                        
C+ FETCH NEXT FROM LABOR INTO :cono, :item, :pdate, :labor_$,     
C+ :shift, :pgmn                                                  
C/End-Exec                                                        
 /free                                                            
  continueread = *on;                                             
  if (sqlstt = '02000');                                          
     continueread = *off;                                         
  endif;                                                          
  return continueread;                                            
 /end-free                                                        
p fetchcursorC1   e                                               
                                                                  
p UpdateDirect    b                                                    
D                 pi              n                                    
d record          s               n                                    
C/Exec SQL                                                             
C+ UPDATE CPAYNE/PACKOFF SET Direct_labor_$ = :labor_$ WHERE COMPANY   
C+ = :cono and PDATE = :pdate and SHIFT=:shift and PROFIT_CENTER =     
C+ :pgmn                                                               
C/End-Exec                                                             
 /free                                                                 
  record = *on;                                                        
  if (sqlstt = '02000');                                               
     record = *off;                                                    
  endif;                                                               
  return record;                                                       
 /end-free                                                             
p UpdateDirect    e                                                    
                                                                       
p UpdateIndirect  b                                                    
D                 pi              n                                    
d record          s               n                                    
C/Exec SQL                                                             
C+ UPDATE CPAYNE/PACKOFF SET Indirect_labor_$ = :labor_$ WHERE COMPANY 
C+ = :cono and PDATE = :pdate and SHIFT=:shift and PROFIT_CENTER =     
C+ :pgmn                                                               
C/End-Exec                                                             
 /free                                                                 
  record = *on;                                                        
  if (sqlstt = '02000');                                               
     record = *off;                                                    
  endif;                                                               
  return record;                                                       
 /end-free                                                             
p UpdateIndirect  e                                                    
                                                                       
p UpdateTemp      b                                                 
D                 pi              n                                 
d record          s               n                                 
C/Exec SQL                                                          
C+ UPDATE CPAYNE/PACKOFF SET Temp_labor = :labor_$ WHERE COMPANY    
C+ = :cono and PDATE = :pdate and SHIFT=:shift and PROFIT_CENTER =  
C+ :pgmn                                                            
C/End-Exec                                                          
 /free                                                              
  record = *on;                                                     
  if (sqlstt = '02000');                                            
     record = *off;                                                 
  endif;                                                            
  return record;                                                    
 /end-free                                                          
p UpdateTemp      e                                                 
                                                                    
p closecursorC1   b                                                     
C/exec sql                                                              
C+ close labor                                                          
C/end-exec                                                              
p closecursorC1   e                                                     
                                                                        
p AddRecord       b                                                     
C/Exec SQL                                                              
C+ INSERT INTO CPAYNE/PACKOFF                                           
C+ (COMPANY, PDATE, SHIFT, PROFIT_CENTER)                               
C+ VALUES(:cono,:pdate,:shift,:pgmn)                                    
C/End-Exec                                                              
p AddRecord       e

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