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What is the basic programme logic in JCl that will help to compile most of COBOL programmes in Z/OS?
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Terminated Job
What happens when we give disp=(new,catlg,catlg) and the job is terminated?
yuvaevergreen
- Apr 4th, 2010
Disp=(new,catlg,catlg) indicates that the dataset to be 1.created in the particular step.2.catalogue the dataset if the job runs successfully.3.catalogue the dataset even if the job abends.
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.//jclsmt dd =SYSOUT (*,intdr) says what?
bdattagupta
- Apr 4th, 2010
Basically INTRDR is a special sysout thru which we can submit a JCL for example. Lets take the below example://STEP001 EXEC PGM=IEBEDIT ...
guraddiv
- May 14th, 2008
its not intdr, its intrdr which is a internal reader used to submit the jcl through the cobol program.
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Describe the JOB statement, its meaning, syntax and significant keywords?
The JOB statement is the first in a JCL stream. Its format is // jobname, keyword JOB, accounting information in brackets and keywords, MSGCLASS, MSGLEVEL, NOTIFY, CLASS, etc.
kpguptha
- Aug 22nd, 2010
Need for job statement: To identify the job with job name and the person who submitted the job,specify which class the job is belonging to using class parameter ,specify how the output shoud be ...
Don Carey
- Jul 14th, 2005
Notify is misspelled in the answer.
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What is a GDG? How is it referenced? How is it defined? What is a MODELDSCB? GDG stands for generation data group. It is a dataset with versions that can be referenced absolutely or relatively. It is defined by an IDCAMS define generation datagroup execution.
boddulasrikanth
- Sep 3rd, 2010
GDG is a Generation Data Group which is having grouped related datasets chronologically or functionally. It is referenced with the versions those are absolute and relative. It is defined by idcams g...
nthayyuru
- Mar 30th, 2009
GDG nothing but Generation Data Group, means data sets has been generated with version number.It will be referred as a dataset with version number then only we knows and identifying the dataset when i...
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Change Dataset Name in PROC
How will you change the dataset name in PROC without altering it?
kckinney
- Sep 3rd, 2010
You can override it from the calling job. One way is to use a JCL override in the form of - PROCSTEP.PROCDD DD DSN=[overriding dsn name]This is fine provided you always use the same override dat...
avr1985
- Jul 4th, 2010
You can change the dataset name in the procedure without change its name in the Proc., mention STEPNAME.DDNAME DSN=NEWFILE NAME by writing above code in JCL it changes the proc DS in proc.
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Calculate total space allocated for file
If file is having space parm as SPACE=(CYL,(10,10)) i.e. 10 primary, 10 secondary. So how much cylinders totally it will take before dataset filled till end?
kckinney
- Sep 3rd, 2010
The traditional answer is (primary+(secondary*15)) or 10+150=160.This question isn't relevant beyond testing the most basic MVS knowledge. The reason is that products such as SMS, STOP37, et...
dhs01
- Apr 15th, 2009
Almost correct, VSAM and non-VSAM are important but equally important is whether the allocation is to SMS controlled dasd. Another factor to consider is that allocations can both get more and less tha...
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What is the difference between variable length & fixed block datasets?
kckinney
- Sep 3rd, 2010
FB datasets all have the same record length. Programs that look for data in certain columns are likely to use FB datasets. On the down side, there may be unused bytes on the end of e...
neeraja
- Oct 9th, 2007
In fixed length record, the record length is sum of all the record (length).In variable length record, the record size is maximum record length + 4bytes.
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Why should BLKSIZE be in multiples of LRECL or less than it?
kckinney
- Sep 3rd, 2010
I'm afraid I don't understand the above answers and am pretty sure I wouldn't agree with them if I did.Assuming a VB record, you will not code a blksize as the LRECL is merely the longest ...
sai mainframes
- Jun 17th, 2008
Hi,I agree with the above answer.generally, for the purpose of compilation, compiler will accept the data in blocks.for example...if you specified LRECL=200, BLKSIZE=1000.when compiler takes one ...
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What is the use of syscat
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How can i search a character string in all the generations of a GDG dataset at once.Any code,utility will do?
kckinney
- Sep 3rd, 2010
If youre question is how to pull in all gens, simply code the GDG base without any absolute or relative reference.To search for a string in a dataset, you can use, DFSORT, ICETOOL, SAS, etc. The...
Sanjay
- Feb 15th, 2007
As srilkrishy said if you want to search for 'aaa' the following would be the code..//**********************************************************************//*****THIS JCL WILL SEARCH THE STRING IN GI...
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What is difference between addressing mode and residential mode?
kckinney
- Sep 3rd, 2010
These both have to do with the location of memory relative to the 16meg "line"AMODE(32) means the program can access program defined storage above the line.RMODE(32) means the program itself...
Roshan George
- Mar 10th, 2006
Addressing mode specifies the architecture used, ie 24 bit addressing mode or the 31 bit addressing mode,ie, Amode=24 or Amode=31.The residential or Rmode is used to specify whether or not the job exists above or below the 16Mb line, ie, where it is resident.
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What are the keywords associated with DCB? How can you specify DCB information? What is the OS precedence for obtaining that DCB information, ie. where does the system look for it first?
The keywords associated with the DCB parameter are LRECL, RECFM, BLKSIZE and DSORG. The DCB information can be supplied in the DD statement. The sysem looks for DCB information in the program code first.
dhs01
- Sep 3rd, 2010
There is what is called a merge. The precedence is what is in the program, then what is in the JCL, lastly is what is in the DSCB associated with the file. You may get an open error if the program spe...
Hervey
- Oct 30th, 2006
The OS method for obtaining DCB information--there was none. It was up to whoever was creatingf the JCL to code these parms correctly. If the pgm included some of these; then jcl & program had to agree; otherwise, an S013 abend was received.
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Does mainframe will support object oriented concept? Justify.
kckinney
- Sep 3rd, 2010
Yes, with the introduction of USS, z/OS can support Java or any number of POSIX compliant languages.There may be others depending on how tighly you defind OO programming. By using loose definition, you could code OO in any language.A tighter definition would limit the langueages considerably
priya anbanandam
- Jun 1st, 2006
hi all,AION tool used in mainframes ,it's an expert system tool uses object oriented concepts in depth.thanks
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How do you duplicate data set in JCL
kckinney
- Sep 3rd, 2010
IDCAMS REPRO with LIKE //STEP01?? EXEC PGM=IDCAMS?????????? //SYSPRINT DD?? SYSOUT=*???????????????????????? //INFILE?? DD?? DSN=DATASET.OLD,?????????...
kckinney
- Jun 8th, 2007
There are many ways, here's one - Allocate the duplicate DSN using BR14 and the LIKE parameter. Then GENER the existing dataset to the new dataset.You can also use IDCAMS to do this using REPRO instead of GENER.kk
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How to update a particular row in a file using JCL?
Any utilities? Don't want to use any programs.
kckinney
- Sep 3rd, 2010
JCL itself is unable to do this, however there is a suite of programs beginning with IEB*.I think the one you're looking for is IEBUPDTE. The syntax of the commands are so arcane that it'...
serken
- Dec 20th, 2008
JCL itself cannot update any file. JCL only can execute other programs. Period.Any file update can be done either by a standard utility program, or by specifically written user program. Period.
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JCL Multi Threading
What is meant by multithreading in JCL?
kckinney
- Sep 3rd, 2010
That's a trick question - JCL does not inherently support multithreading. (Assuming multithreading means running several programs/processes at the same time.)A redneck way of accomplishing t...
sandeep.gadhave
- Apr 1st, 2010
You can reduce the processing time of a job by using multi-threading, by separating the input into different ranges and execute the same programs by submitting multiple jobs per range.
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What is the meaning of data definition name (ddname) and dataset name (dsname) in the DD statement?
Data definition name is the eight character designation after the // of the DD statement. It matches the internal name specified in the steps executing program. In COBOL that's the name specified after the ASSIGN in the SELECT ASSIGN statement. Dataset name is the operating system (MVS) name for the file.
kckinney
- Sep 7th, 2010
DD (or Data Definition) is an arbitrary 8 character file name that a program performs I/O to/from.This directly correlates to to the DD name as specified in your JCL. If these two 8 character DD...
Soumik Das
- Feb 20th, 2007
The DD name is the logical 8 characters file name which alllows the pplication program to identify or tag the dataset.Whereas the DSN is the physical file name used by the MVS to identify the dataset....
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TSO command
what is an SDSF?
subha2010
- Oct 5th, 2010
TSO commads are used for online access of termimals.over riding jobs based on priority,terminate jobs which are actually not getting any transcation for a long time, route and redirect the terminal messages.
sree mallika
- Apr 20th, 2010
This is used to provide the information about the jobs like where there in input queue, hold queue, output queues.
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Send email from JCL in Mainframe
How to send a Mainframe file to a mailbox using a JCL? Mailbox could be any? What parameters need to be passed in the JCL like - Host address, mail address, etc..?
arsagg
- Oct 21st, 2010
////SENDNOTE EXEC PGM=IEBGENER //SYSIN DD DUMMY //SYSPRINT DD SYSOUT=* //SYSUT2 DD SYSOUT=(B,SMTP) //SYSUT1 DD * HELO MVSHOST MAIL FROM: RCPT TO: DATA FROM: email id TO: email...
kckinney
- Sep 3rd, 2010
The other answers are fine as far as they go. They both assume SMTP is up and running unter TCPIP. SMPT polls a specific output queue and forwards any output in that queue to the next hop as...
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