Answer / billyboyo

Packed decimal is IBM's method to allow calculation
directly in base-10.

A DISPLAY numeric field might be PIC S9(7).

If you were to try to add 1 to this, the compiler would
convert, in its own work area, this field to a "packed
decimal" field and generate an AP (Add Packed) to do the
addition, then it would convert the field back to DISPLAY
and the correct value would be in your PIC S9(7) field.
Notice that if you had started off with a COMP-3 (packed
decimal) PIC S9(7) you avoid doing two conversions (from
display to packed and from packed to display).


If you have 1234567 in your display field, it looks like
this in HEX "F1F2F3F4F5F6F7". In comp-3/packed decimal it
looks like this in HEX "1234567C", where the C is the sign
(C is positive, D is negative, and F is unsigned).

Answer / naagju

Packed decimal is nothing but COMP3..

which occupies half byte for a character n half byte for sign.

Ex.01 name pic x(10) value 'sivaNaagju'

which occupies only 5 bytes.

How do you compile cobol program..?

1 Answers  

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can we read records in a file from botom to top. if possible how can we read

12 Answers   ACS,

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here is my compile and link edit steps in a jcl //COMPILE1 JOB (3CUS,S),'CCDM TEST' //STEPNAME EXEC PGM=IGYCRCTL,PARM='DYNAM,RENT,LIB,OBJECT, // OFFSET,APOST,OPTIMIZE',REGION=4096K //STEPLIB DD DSNAME=PM7351.TEST2.COB,DISP=SHR //SYSIN DD DSNAME=PM7351.TEST2.COB(PGM1),DISP=SHR //SYSUT1 DD UNIT=SYSDA,SPACE=(10,(10,10)) //SYSUT2 DD UNIT=SYSDA,SPACE=(10,(10,10)) //SYSUT3 DD UNIT=SYSDA,SPACE=(10,(10,10)) //SYSUT4 DD UNIT=SYSDA,SPACE=(10,(10,10)) //SYSUT5 DD UNIT=SYSDA,SPACE=(10,(10,10)) //SYSUT6 DD UNIT=SYSDA,SPACE=(10,(10,10)) //SYSUT7 DD UNIT=SYSDA,SPACE=(10,(10,10)) //SYSPRINT DD SYSOUT=* //SYSLIN DD DSNAME=&&LOAD,DISP=(MOD,PASS),UNIT=SYSDA, // SPACE=(10,(10,10)),DCB=BLKSIZE=400 //LKED EXEC PGM=IEWL,REGION=1024K //SYSPRINT DD SYSOUT=A //SYSLIB DD DSN=PM7351.TEST2.LOADLIB,DISP=SHR // DD DSN=PM7351.TEST2.COB(PGM1),DISP=SHR //SYSLMOD DD DSN=PM7351.TEST2.LOADLIB, // DISP=SHR //SYSUT1 DD UNIT=SYSDA,DCB=BLKSIZE=1024,SPACE=(CYL,(1,1)) //SYSTERM DD SYSOUT=* //SYSLIN DD DSN=&&LOAD,DISP=(OLD,DELETE) //SYSIN DD DUMMY i am getting IEW2013I 0F08 NO MEMBER NAME WAS SPECIFIED. MODULE WAS SAVED USING TEMPNAM1. could any one tell me the resolution for this..?

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What is a scope terminator? Give examples.

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have in 100 records in a file i want to move only matched records to one output_file1 and nonmathed records are moved to another output_file2 ... any one can provide logic code

3 Answers  

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maximum of how many screens we can open in emulator

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how will you define vsam file in select clause?

3 Answers   Patni,

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Which division and paragraphs are mandatory for a COBOL program?

0 Answers  

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I know my query will return more than one row but I don't want cursor what should I do?

1 Answers  

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how do you reference the esds vsam file formats from cobol programs

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Hi Devolopers.. i need ur help.. i have 3 years of exp in Manual testing and SQL, next month onwards i shifted in to MAINFRAME TESTING... i have ZERO Knowledge abt mainframes.... PLS SUGGEST ME WHAT I LEARN in AMEERPET? mainframe testing or mainframe total devolopment subject... AS a devoloper u know every thing tester what to do PLSSSSSSSSS help me ITS VERY URGENT...

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01 a pic s9(5) value -12345, if we disply a , the sign will overpunched with last digit but i need to get the miuns sign in the result?

7 Answers  

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