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October 2007, Week 1

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Subject:
Re: KSAMXL Question/Problem -- Key Info
From:
Robert Mills <[log in to unmask]>
Reply To:
Robert Mills <[log in to unmask]>
Date:
Tue, 2 Oct 2007 09:21:36 +0100
Content-Type:
text/plain
Parts/Attachments:
text/plain (76 lines) 
Brian,

From Chapter 2 of the "Using KSAM XL and KSAM 64" manual:

"RDUP specifies that each new duplicate key is inserted randomly in the
duplicate key chain. RDUP is used if the reuse option is selected. With
RDUP, chronological order is not maintained."

regards,
 
Robert W.Mills
Business Systems Development Analyst
Group Information Systems & Technology
Pinnacle Arvato
DDI: +44 (0)20 8309 3604 


-----Original Message-----
From: HP-3000 Systems Discussion [mailto:[log in to unmask]] On
Behalf Of Brian Donaldson
Sent: 02 October 2007 04:06
To: [log in to unmask]
Subject: [HP3000-L] KSAMXL Question/Problem -- Key Info

I built this file thus:

:BUILD HOLDIT9;REC=-22,,F,ASCII;DISC=55;KSAMXL;KEY=(B,1,4,DUP;B,8,4,
DUP;B,13,2;B,22,1);REUSE;OPTMBLK

I was expecting two dup keys (not RDUP keys) on the listf of the file
but it shows the file with RDUP keys?

Why random dups keys instead of plain old dup keys?

TIA,
Brian Donaldson.
 
:LISTF HOLDIT9,-5
********************
FILE: HOLDIT9.PUB.DEV             

FILE CODE : 0                   FOPTIONS: ASCII,FIXED,NOCCTL,KSAMXL
BLK FACTOR: 146                 CREATOR :  
REC SIZE: 22(BYTES)             LOCKWORD:                      
BLK SIZE: 4096(BYTES)           SECURITY--READ    : ANY        
EXT SIZE: 0(SECT)                         WRITE   : ANY        
NUM REC: 0                                APPEND  : ANY        
NUM SEC: 224                              LOCK    : ANY        
NUM EXT: 2                                EXECUTE : ANY        
MAX REC: 63                             **SECURITY IS ON       
                                FLAGS   : NO ACCESSORS         
NUM LABELS: 0                   CREATED : MON, OCT  1, 2007,  7:40 PM
MAX LABELS: 0                   MODIFIED: MON, OCT  1, 2007,  7:40 PM
DISC DEV #: 4                   ACCESSED: MON, OCT  1, 2007,  7:40 PM
SEC OFFSET: 0                   LABEL ADDR: $00000063.$0008FA20 
VOLCLASS  : MPEXL_SYSTEM_VOLUME_SET:DISC
                                                               
KEY         KEY TYPE            KEY LOCATION      KEY SIZE   DUP/RDUP
---         --------            ------------      --------   --------
  1         BYTE                           1             4   RDUP    
  2         BYTE                           8             4   RDUP    
  3         BYTE                          13             2   NONE    
  4         BYTE                          22             1   NONE    
                                                               
NUM KSAM KEYS: 4                               FIRST KSAM RECORD: 0
LANGUAGE     : NATIVE-3000                     REUSE RECORD     : YES
PRIMARY KEY  : RANDOM                          COMPUTE BLK SIZE :
OPTMBLK
VERSION      : 2                               DATA BLOCK SIZE  : 4096

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