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What is the need of using comp field in COBOL
mf.vannan
- Dec 22nd, 2009
1. When we want to store the datas in BINARY format.2. When we are receving the datas from the JCL. Regds,Rasipuram ManiVannan M
Avinash Sharma
- Apr 10th, 2007
We use comp field in cobol because when we want to store the data in binary form we use comp and the sign is placed in rightmost bit. c is used for +ve sign and d is used for -ve sign.
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Differentiate between literal and figurative constant
mf.vannan
- Dec 24th, 2009
Figurative constant:Variables will refer the constant values such as space, zero, low and high values.Literal:literals are not like that.Regd,Rasipuram ManiVannan M
UmeshShet
- Jul 8th, 2009
Literal are user defined, can be numeric or Non numericFigurative constants are ZERO/ZEROS, HIGH-VALUE/HIGH-VALUES, LOW-VALUE/LOW-VALUES, SPACE-SPACES.
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Real time requirement in global payments-mainframes
Hiprovide info about any real time requirement in global payments-mainframesbyeramya
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Impact Analysis
Suppose a program has one i/p file and one o/p file now we want to add another file to the Cobol program and also two new fields (i.e columns) are added to the o/p file from the new i/p file then how will you do impact analysis.
SreekanthMuni
- Dec 28th, 2009
This is the way we can avhieve this1. Read file12. Copy key3. Open file24. Read file2 with the key5. Write the o/p file36. Close file27. Read fle1 next record8. Perform steps 2 to 7 till end of data base
genesis786
- Dec 21st, 2009
First of all - it needs to be understood what the program is used for. Questions likei) why the new file is being introduced to the program?ii) adding extra two columns to the output file - will that ...
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Give example of Inspect TALLYING / BEFORE INTIAL / AFTER INITIAL. In which situation will use this in COBOL?
We have different type of Inspect verb1.counting INSPECT.2.replacing INSPECT.3.combined INSPECT.4.converting INSPECT.Give example of any Inspect verb which you know.
abhi7878
- Jan 14th, 2010
F F FF A FF F FF Q F F F Z INSPECT StringData REPLACING ALL "F" BY "G" AFTER INITIAL "A" BEFORE INITIAL "Q". F F F F A G G G G G Q F F F Z In previours answers ...
maddy5981
- Nov 16th, 2009
INSPECT word TALLYING count FOR LEADING “L” BEFORE INITIAL “A”, count-1 FORLEADING “A” BEFORE INITIAL “L”.Where word = LARGE, count = 1 and count-1 = 0....
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Explain call by context by comparing it to other calls?
The parameters passed in a call by context are protected from modification by the called program. In a normal call they are able to be modified.
ge01395
- Jan 28th, 2010
When during the Call the shared data is moved to the temporary work area, which is then passed to the subprogram, intead of the original data. As a result, when control is passed back to the calling p...
pulikutty
- Jul 17th, 2007
In call by content a copy of variable is passed to the sub program. In case of call by address the address is passed.
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Is Renaming variable takes separate space or not
RICHA_GARG
- Feb 9th, 2010
RENAMES clause does not use any extra space within the program as it just provides a replacement name for use in a data definition attached to a program through a COPY statement.
gopalchand
- Dec 3rd, 2009
Rename Clause is used to Regrouping the Elementary Data Items.It will not takes Separate Space
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Is it possible that the REDEFINES clause has different picture clauses compared to the one it redefined?
ragavprasanna
- Aug 31st, 2008
Yes, it is possible, redefines means using (sharing) the same memory space. It is not necessary to share variables having same picture clause.
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Level Number
Do we need to give level number in sequence order? Why?
toton_tcs
- Mar 9th, 2010
More higher number of level having less position in the level hierarchy.That's why It should be in the increasing manner. 01 date 03 day pic 9(2). 03 month pic 9(2). 03 year pic 9(4...
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File Concept
The Disposition Parameter in the JCL is Share ( DISP=SHR ) and Cobol program opens file in " Extend " mode. In this scenarion what will happen to that file?
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jedianiki- Member Since Mar-2010 | Mar 24th, 2010
The DISP=SHR in JCL means that the file is already existing and that it is not exclusively locked for your own use. Other user can still access this file. And the EXTEND in the COBOL program means that, when you open the file, the record pointer will be positioned on the last row of the record and every insert you'll make will be appended on the last position of the file.
jedianiki
- Mar 24th, 2010
The DISP=SHR in JCL means that the file is already existing and that it is not exclusively locked for your own use. Other user can still access this file. And the EXTEND in the COBOL program means tha...
pkraja101
- Feb 6th, 2010
In this time it will respond to the COBOL program and we can successfully write in the old source program.
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What if Stop Run is missing in COBOL program?
Stop Run is last command in COBOL program.But if it is missing, will the program abend?
mail_mathewsonyc
- Sep 1st, 2007
"Stop Run" and "Go Back" both indicate to the program to end processing and in the latter case to transfer control to the calling program.If you dont specify either of these in you...
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What is wrong with the following data declaration? 01 W-DATE PIC X(6). 05 DD PIC 99. 05 MM PIC 99. 05 YY PIC 99. (a) Nothing is wrong. (b) Under W-DATE all level 05 items are having a PIC 99 but level 01 has PIC X(6). (c) PIC cant be specified for a group item. (d) DD, MM, and YY are invalid datanames.
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Give simple program example for Dynamic link and Dynamic call in COBOL?
ambadiramesh
- Apr 9th, 2010
If the main module is calling submodule statically then the sub module's code will be copied into the main module in the comiled version but this wont happens in DYNAMIC calls case.Hope it will help.Regards,Ambadi. Ramesh.
Lev Gaitsgory
- Feb 19th, 2010
Dynamic Calls:01 Sub-Routine pic x(8) value 'ABC'CALL Sub-Routine USING ARGUMENTS
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What is the default value(s) for an INITIALIZE and what keyword allows for an override of the default?
INITIALIZE moves spaces to alphabetic fields and zeros to alphanumeric fields. The REPLACING option can be used to override these defaults.
sunapana
- Apr 17th, 2010
DATA DIVISION. WORKING-STORAGE SECTION. 01 Var-C. 05 Var-d PIC x VALUE "A". 05 Var-e PIC 9 VALUE 5. 05 FILLER PIC X(2) VALUE 'HI'. PROCEDURE DIVISION. PUTPARA. DISPLAY VAR-D. DISPLAY VAR-E. ...
panzer1
- Feb 1st, 2010
Yes, the "VALUE' is used once to set the value at the beginning of the program execution.The "INITIALIZE" can be used multiple times any where in the program after execution begins.
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What is the diffrence between endeavor and changeman?
kiran_28
- May 26th, 2010
Change man cost more for company but time less.Endeavor saves money more but takes time to execute job more.
Dinesh
- Apr 13th, 2007
Both Endeavor and Changeman are version control tool in Mainframe where you can elevate your components into production. A pacakge can be created and stage the componets that to be elevated to prodcution.
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What is Load module & Link edit and How will it work Dynamic call?
Normally we are using Dynamic call. What will happen when COBOL program compilation & execution.
ramesh4greek
- Jun 11th, 2010
Load Module: The object code converted into Load Module (Machine readable form) by using Link edit that's common in COBOL. But in Dynamic call, first we have to submit the sub progs later we can use that in Link section in COBCOMP. That's the procedure.
venkat65318
- Sep 14th, 2009
Link edit is the process of linking of object codes of similar programs to form a single executable load module.Linkage of object codes of mainprogram and subprogram is done during execution.??
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What is the reference modification
ramesh4greek
- Jun 11th, 2010
Yes the above 2 steps are correct. By using reference modifcation we can write reverse of a string, right angle and piramid.........
pawan_kch
- Jun 20th, 2008
Reference modification is used to retrieve/replace the set of characters from a string.Ex: MOVE WS-VAR(1:5) TO PV-VAR. MOVE 'GEEK' TO WS-VAR(1:4).
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When is a scope terminator mandatory?
Scope terminators are mandatory for in-line PERFORMS and EVALUATE statements. For readability, it's recommended coding practice to always make scope terminators explicit.
ramesh4greek
- Jun 11th, 2010
The usage scope terminator exactly can get at Perform. For example if you are in Table creation, then you can use multiple paras in that one. But by In-line perform you can avoid to create multiple pa...
himanshu kaushik
- Dec 20th, 2006
In line perform & evaluate verb. in these two scope terminator is mandatory.
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Comp and Comp-3
In real time in which situations we can use comp-3 and comp. What is the major difference between these two?
ramesh4greek
- Jun 11th, 2010
In COMP the data is stored in binary format, and displayed in character format.In COMP3, the data is stored as the above formula. For lower bound values COMP is best and for upper bound values COMP3 is better.
mainframerek
- Apr 15th, 2010
Comp-3 is more efficient than Comp.Comp: Binary representation of data, can contain only S, 91 - 4 : 2 bytes (1/2 word)5 - 9 : 4 bytes (Full word)10 -18 : DoublewordComp-3 : P...
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How to find the number of records in a flat file using COBOL ?
I tried in many ways, but it loops over again and again in the last record and reports me abend error.
Mainframe_Dinosaur
- Jul 5th, 2010
Mainframe programmers wouldn't normally write a Cobol program just to count the number of records in a file. We would count the number of records using DFSort or SyncSort, or use AMS(Idcams ...
sivachennai
- Nov 5th, 2008
In this code i am using cnt for finding the number of records.0700-LOAD-UOM-FILE.READ MPSF-item-FILE AT END MOVE WSL-Y TO WSW-ITEM-FILE-SWT MOVE WS-ITEM-TAB-CNT TO WS-UOM-ITEM-MAX GO TO 0700-LO...
COBOL Interview Questions
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