How to read records in reverse order in flat file?

what modification we need to do in jcl if we use sort in cobol? I mean whether we need to include temporary file used for sorting in assign statement?

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difference between internal sort and external sort

i want to store 20 digits . how will u do it in cobol ?

01 GROSS-PAY 05 BASIC-PAY PIC 9(5) 05 ALLOWENCES PIC 9(3) if BASIC-PAY has a value 1000 and ALLOWENCES has a value of 250,what will be displayed by the statement DISPLAY GROSS-PAY a.1250 b.01000250 c.01250 d.1.250

WORKING-STORAGE SECTION. 01 GROSS-PAY. 05 BASIC-PAY PIC 9(5). 05 ALLOWENCES PIC 9(3). PROCEDURE DIVISION. MOVE 1000 TO BASIC-PAY. MOVE 250 TO ALLOWENCES. DISPLAY GROSS-PAY. STOP RUN. 77 W-A PIC 9(3)V99 VALUE 23.75 77 W-B PIC ZZ9V99 VLAUE 123.45 after the statement MOVE W-A TO W-B what will be W-B's value? a.123.75 b.b23.75 (where b indicates space) c.023.75 d.invalid move

WORKING-STORAGE SECTION. 77 W-A PIC 9(3)V99 VALUE 23.75. 77 W-B PIC ZZ9V99 VALUE 123.45. PROCEDURE DIVISION. MOVE W-A TO W-B. DISPLAY W-B. STOP RUN. compiler : IGYGR1080-S A "VALUE" clause literal was not compatible with the data category o subject data item. The "VALUE" clause was discarded. WORKING-STORAGE SECTION. 77 W-A PIC 9(3)V99 VALUE 23.75. 77 W-B PIC ZZ9V99. PROCEDURE DIVISION. MOVE 123.45 TO W-B. MOVE W-A TO W-B. DISPLAY W-B. STOP RUN. 2375

what if any ,is the syntax error in the following piece of code 01 B PIC A(7) 02 C PIC 9(4) ........ IF(B NUMERIC) ADD 10 TO C a.the condition in the if statement is wrong b.noting is wrong c.because C is initialised.ADD 10 TO C is wrong d.both B and C shoud have same size.

01 GROUP-ITEM 05 AMOUNT-1 PIC 99V9 USAGE COMP VALUE 50 05 AMOUNT-2 PIC 9(4)V99 USAGE COMP MOVE ZERO TO GROUP-ITEM ADD 50 TO AMOUNT-1 what will be the content of AMOUNT-1? a.50 b.100 c.0 d.unpredictable

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.

consider the following progrm statements MOVE 0 TO SW.NO.OF.REC PERFORM PRI-OUT UNTIL SW=1 DISPALY NO.OF.REC STOP RUN PRE-OUT READ IN-FILE AT END MOVE 1 TO SW WRITE OUO-REC FROM IN-REC ADD 1 TO NO.OF REC if the IN-FILE contains 1000 records what value will be displayed after the PERFORM is over? assume that N0.OF.REC has PIC 9(4) a.1000 b.1001 c.1 d.none of the above

//S10 EXEC PGM=ICETOOL //TOOLMSG DD SYSOUT=* //DFSMSG DD SYSOUT=* //CON DD DSN=VAR.INPUT1,DISP=SHR // DD DSN=VAR.INPUT2,DISP=SHR //OUT DD DSN=VAR.OUTPUT,DISP=(NEW,CATLG,DELETE), // SPACE=(CYL,(5,5)),UNIT=SYSDA //TOOLIN DD * * Splice the needed data from the two VB files together SPLICE FROM(CON) TO(OUT) ON(5,5,CH) WITHALL - WITH(12,5) WITH(22,20) VLENMAX /*

Explain about REXX

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