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normaltusker
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Joined: 29 May 2007
Posts: 3
Location: Bangalore
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I am aware that there are several topics on the forum which have addressed the issue of using partial keys in order to fetch records from a VSAM file. I tried using most of the approaches that were possible for me to use yet I am not able to get the desired results. This is the reason I am requesting help on this much debated topic again.
I have a KSDS VSAM with multiple records and a key length of 150 characters. It has records of variable record length ranging from 250 characters to 900 characters.
The VSAM has no AIX defined.
In my program, the select has been coded as:
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SELECT INOUT-MASTER-FILE ASSIGN TO VXVSAMMF
ORGANIZATION INDEXED
ACCESS DYNAMIC
RECORD KEY IS VSAM-KEY
ALTERNATE RECORD KEY IS VSAM-AK1
ALTERNATE RECORD KEY IS VSAM-AK2
FILE STATUS INOUT-FILE-STATUS.
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I read on the forums that the leftmost part of the key must necessarily be filled before the partial key may be used. My program is taking care of filling up that part since it tries to retrieve records from the same file earlier in the program.
The records present in the file are identified by different record types each having a different meaning to it. Each record has a similar key except for a difference in the record type and few other fields.
My File structure for the select has been defined as below:
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01 VSAM-REC.
02 VSAM-KEY.
10 INOUT1-FILE-ID PIC X(20).
10 INOUT1-FILE-SUFFIX PIC X(15).
10 INOUT1-RECORD-SEQ PIC 9(01).
10 INOUT1-IN-TYPE-ALT PIC 9(02).
10 VSAM-AK1.
15 VSAM-AK1-BANK-CODE PIC X(05).
15 VSAM-AK1-CHECK-NBR PIC 9(10).
15 VSAM-AK1-SEQ PIC X(01).
15 VSAM-AK1-COUNTER PIC 9(07) COMP-3.
15 VSAM-AK1-33COUNT PIC 9(04) COMP-3.
88 VSAM-OUT-LINE-ACTIVITY VALUE 1 THRU 9999.
10 VSAM-RECORD-TYPE PIC 9(02).
88 VSAM-FILE-HEADER VALUE 10.
88 VSAM-FILE-NA VALUE 11.
88 VSAM-FILE-DETAIL VALUE 12.
88 VSAM-IN-HEADER VALUE 20.
88 VSAM-IN-NAME-ADDRESS VALUE 21.
88 VSAM-IN-ACTIVITY-DETAIL VALUE 22.
88 VSAM-OUT-CHECK-HEADER VALUE 30.
88 VSAM-OUT-NAME-ADDRESS VALUE 31.
88 VSAM-OUT-LINE-SUMMINY VALUE 32.
10 VSAM-FILLER2 PIC X(25).
10 VSAM-AK2.
15 VSAM-AK2-FILE PIC X(20).
15 VSAM-AK2-IDNBR-CLM PIC X(25).
15 VSAM-AK2-IN-TYPE PIC 9(02).
15 VSAM-AK2-RECTYPE PIC 9(02).
15 VSAM-AK2-YYDDD PIC 9(05).
15 VSAM-AK2-COUNTER PIC 9(08) COMP-3.
15 VSAM-AK2-COUNTER33 PIC 9(04) COMP-3.
02 VSAM-LRECL PIC 9(04).
02 VSAM-DATA PIC X(01)
OCCURS 096 TO 0746 DEPENDING ON VSAM-LRECL.
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Further down in the program, after successfully retrieving a record of the first type, it is imperative to fetch a record of the second type. For this i populate data into the VSAM-AK2 field and try a start browse.
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START INOUT-MASTER-FILE KEY NOT < VSAM-KEY INVALID KEY
MOVE 'N' TO WS-MATCHED-FOUND-SW
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This is followed by a read next.
The data that is present in the file has the value xxxxx nn in the field VSAM-AK2-IDNBR-CLM where as we are populating just xxxxx in the field before the start browse.
i tried using this query in file aid and found that the data is being fetched alright.
My problem is, although the start browse commands have been coded similarly, my file still does not read the record that is present in the file and instead reads the last record possible and fails.
please help me rectify this as i have lost many person hours of effort on this already. |
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Robert Sample
Global Moderator
Joined: 06 Jun 2008
Posts: 8696
Location: Dubuque, Iowa, USA
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| Quote: |
| The VSAM has no AIX defined. |
conflicts with
| Code: |
ALTERNATE RECORD KEY IS VSAM-AK1
ALTERNATE RECORD KEY IS VSAM-AK2 |
so we already know you're not being truthful -- so how much help do you think we can provide?
And this is utter garbage:
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For this i populate data into the VSAM-AK2 field and try a start browse.
Code:
START INOUT-MASTER-FILE KEY NOT < VSAM-KEY INVALID KEY
MOVE 'N' TO WS-MATCHED-FOUND-SW |
if you move data to VSAM-AK2, then start browsing on the primary key, you have completely wiped out anything in VSAM-AK2 since the primary key will control the browse. You would need to start your browse based on VSAM-AK2 if that's what you're trying to read.
Furthermore, if I'm needing to access a VSAM file at two different records in one program, I always create two SELECT statements, two OPEN statements, and so forth so I can retain the record pointer for one as I'm bouncing around the file with the other variable. |
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normaltusker
New User
Joined: 29 May 2007
Posts: 3
Location: Bangalore
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I am building the AIX now.
For the other part where the browsing is concerned, i shall fix it once i have the aix up and running. |
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PeterHolland
Global Moderator
Joined: 27 Oct 2009
Posts: 2481
Location: Netherlands, Amstelveen
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Robert,
you have a job on the side as a bouncer?  |
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Robert Sample
Global Moderator
Joined: 06 Jun 2008
Posts: 8696
Location: Dubuque, Iowa, USA
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| Peter, I could use one a bouncer, stationed right next to my cubicle ... it's been one L-O-N-G week so far and I've got 6 hours to get beat up on left! |
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PeterHolland
Global Moderator
Joined: 27 Oct 2009
Posts: 2481
Location: Netherlands, Amstelveen
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Robert,
im sorry to hear that. Hope that after those 6 hours you still have
some boozing time left.
Anyway, have a nice week-end.
Cheers |
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normaltusker
New User
Joined: 29 May 2007
Posts: 3
Location: Bangalore
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Guys,
This was my mistake - while creating the files using the pre-populate feature of the file-aid, i did not realize that the file-aid did not create the aix files on its own. when Robert pointed out that the AIX files must be present for the sake of the 2 extra keys to work, I cross checked the production files and found that the AIX files actually existed but were not replicated at my end.
I recreated the 2 AIX files and resubmitted the job leading to a good EOJ.
Thanks for pointing my mistake out Rob, was a little rough but helped me none the less!  |
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Robert Sample
Global Moderator
Joined: 06 Jun 2008
Posts: 8696
Location: Dubuque, Iowa, USA
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| Glad to hear you got it working! |
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