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[MFdigger]

Hi

Please confirm/clarify my understanding as i'm confused with the below PROCOPTS:

1. PROCOPT=G - is used to read the data in the segment by the program, NOT allowing to update the same segment by an other program
PROCOPT=O - is used to read the data in the segment by the program but allowS the update of the same segment by an other program

What is the use of the combination GO?

and how come GOT or GON is helpful?

2. if i have the PROCOPT=GOT

can i update (REPLACE) the data in the database? or do i have to append "R" for the PROCOPTIONS, i mean for PROCOPT=GOTR?

Please help me in understanding these combinations.

Thanks
Digger
_________________
Tx
Digger

[ANIL SARATHY]

yes your confused.

G - allows program to read. nothing to do with others programs operation on that segment. one problem is there , if other program updates the same segment occurenece or deletes it , then what ...........

this problem is addressed by O,N,T options

N---- Reduces the number of abends that read-only application programs are subject to. Read-only application programs can reference data being updated by another application program. When this happens, an invalid pointer to the data might exist. If an invalid pointer is detected
the read only application program abends. By specifying N, you avoid this. A GG status code is returned to the program instead.
N must be specified as GON, GONH, or GONP.


T ==> Is the same as the N operand, except that T causes DL/I to
automatically retry the operation. If the retry fails, a GG status code is
returned to the application program. T must be specified as GOT, GOTH,
or GOTP.


O - If the O option is used for a PCB, IMS does not check the
ownership of the segments returned. Therefore, the read without integrity
program might get a segment that has been updated by another program.
If the updating program abends and backs out, the read without integrity
program will have a segment that does not exist in the database and never did.

Therefore, if you use the O option do not update based on data read
with that option. O must be specified as GO, GON, GONP, GOT, GOTP,
or GOP only.



Take second question as assignement . Now ,you should tell this ?
_________________
Anil Sarathy

[MFdigger]

Hi Anil,

Thank you for your info and sorry for my late reply.

Initially the PROCOPT for the PCB was as mentioned below:

PCB TYPE=DB,DBDNAME=XXXABC99,PROCSEQ=XXXABC9I,KEYLEN=60,
PROCOPT=GOT
SENSEG NAME=XXXABC99,PARENT=0

Now I modified the program (DC transaction program) such that it has to update the database XXXABC99, and made the changes to procopt as PROCOPT=GR.

PCB TYPE=DB,DBDNAME=XXXABC99,PROCSEQ=XXXABC9I,KEYLEN=60,
PROCOPT=GR
SENSEG NAME=XXXABC99,PARENT=0

when ever 2 or more transactions are executed the job is abeneding with
TRAN xxxabc10 ABEND S000,U0018.

If i remain the same PROCOPT to the parent segment and add the PROCOPT parameter to the the child segment as below, will this work?

PCB TYPE=DB,DBDNAME=XXXABC99,PROCSEQ=XXXABC9I,KEYLEN=60,
PROCOPT=GOT
SENSEG NAME=XXXABC99,PARENT=0, PROCOPT=GR

Please let me know if i have to code differently.
_________________
Tx
Digger

[shekar123]

MFdigger,

Please have a look at the PROCOPT options: