Answer / bhanu

It is use to test the program an empty file

Answer / arun

sysin dd *

it is used to pass the input statement called 'control pad'

Answer / deepak gairola

//sysin dd dumy :DUMMY has meaning as NULLFILE and is used
to suppress unused files. If you use it, it handles files
as non existing.
You can use it for example in IDCAMS with various input and
output files.
You have 20 input and 20 output files, but you only want to
use the 9th thru 13th input/output files without changing
the sysin instructions (REPRO).
So you set input/output file 1 thru 8 and 14 thru 20 to DD
DUMMY.
It works, try it.

Please go through the manual before posting

If you use it in a concatenated DD statement, be careful,
because it
identifies the EOF in the DD DUMMY, so it is the best way
to place it
at the end of a DD instruction.

All parameters used after a DD DUMMY, are ignored, this is
the difference between NULLFILE and DD DUMMY. NULLFILE
recognizes applied parameters.

Describe the DD statement, its meaning, syntax and keywords?

2 Answers  

---

what is fixed length and variable length and difference between them

1 Answers   CGI, Wipro,

---

How do you handle empty files in a JCL ?

3 Answers   Wipro, Xansa,

---

Where can program checkpoints be stored for use in a restart?

0 Answers  

---

what is the general use of PARM? Give an explanation about the system defined parameters that could be passed through this PARM like XREF,LIST,LET,APOST,RENT etc..

3 Answers   Cognizant,

---

---

by using cond parameter maximum 8 cond can be coded in single cond means ?explain

0 Answers  

---

How can we execute only one step in a job

22 Answers   MAHINDRA, Mind Tree, Tech Mahindra,

---

How to copy one PS file to multiple PS files with same data?

1 Answers  

---

What is the difference between specifying DISP=OLD and DISP=SHR for a dataset?

2 Answers  

---

WORKING-STORAGE SECTION. 1 GROUP-ITEM. 05 AMOUNT-1 PIC 99V9 USAGE COMP VALUE 50. 05 AMOUNT-2 PIC 9(4)V99 USAGE COMP. PROCEDURE DIVISION. MOVE ZERO TO GROUP-ITEM. ADD 50 TO AMOUNT-1. DISPLAY AMOUNT-1. STOP RUN.

1 Answers  

---

Hi, Say I have 10 flat files and I want to copy all these 10 flat files to a GDG versions flat files (I have GDG base: FDWS01.TEST.RESTORE) in one shot. Can we do that in one shot using a JCL. May be by using IEBGENER. It's a bit urgent. So anyone's fast rely would be appreciated.. Thanks in advance.. 10 flat files ----------------------------------- FDWS01.SUB.RESTORE1 FDWS01.SUB.RESTORE2 FDWS01.SUB.RESTORE3 ; ; FDWS01.SUB.RESTORE10 TO GDG versions ----------------------- FDWS01.TEST.RESTORE.G0001V00 FDWS01.TEST.RESTORE.G0002V00 FDWS01.TEST.RESTORE.G0003V00 ; ; FDWS01.TEST.RESTORE.G0010V00

4 Answers  

---

what is the difference between the JCLLIB and JOBLIB ,and where do we use it ?

3 Answers   Convergys,

---