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Indexed files Report Writer Report Section INITIATE GENERATE TERMINATE READ WRITE REWRITE START COBOL Program COBOL Example
$ SET SOURCEFORMAT"FREE"
IDENTIFICATION DIVISION.
PROGRAM-ID. BookshopLectReqRpt.
AUTHOR. MICHAEL COUGHLAN.
*Originally written for VAX COBOL 1991
*Converted to Microfocus COBOL 2002
*The Campus Bookshop Purchase Requirements Report (DP291-91-EXAM)
ENVIRONMENT DIVISION.
INPUT-OUTPUT SECTION.
FILE-CONTROL.
SELECT Purchase-Req-File ASSIGN TO "PRFILE.DAT"
ORGANIZATION IS INDEXED
FILE STATUS IS Pr-Status
ACCESS MODE IS DYNAMIC
RECORD KEY IS Pr-Number
ALTERNATE RECORD KEY IS Pr-Lecturer-Name
WITH DUPLICATES
ALTERNATE RECORD KEY IS Pr-Book-Num
WITH DUPLICATES.
SELECT Book-File ASSIGN TO "BOOKFILE.DAT"
ORGANIZATION IS INDEXED
FILE STATUS IS Bf-Status
ACCESS MODE IS DYNAMIC
RECORD KEY IS Bf-Book-Num
ALTERNATE RECORD KEY IS Bf-Publisher-Num
WITH DUPLICATES.
SELECT Publisher-File ASSIGN TO "PUBFILE.DAT"
ORGANIZATION IS INDEXED
FILE STATUS IS Pf-Status
ACCESS MODE IS DYNAMIC
RECORD KEY IS Pf-Publisher-Num
ALTERNATE RECORD KEY IS Pf-Publisher-Name.
SELECT REPORT-FILE ASSIGN TO "BOOKSHOP.RPT".
DATA DIVISION.
FILE SECTION.
FD Purchase-Req-File.
01 Pr-Rec.
02 Pr-Number PIC 9(4).
02 Pr-Lecturer-Name PIC X(20).
02 Pr-Book-Num PIC 9(4).
02 Pr-Module-Code PIC X(5).
02 Pr-Copies-Required PIC 9(3).
02 Pr-Semester PIC 9.
FD Book-File.
01 Book-Rec.
02 Bf-Book-Num PIC 9(4).
02 Bf-Publisher-Num PIC 9(4).
02 Bf-Book-Title PIC X(30).
FD Publisher-File.
01 Publisher-Rec.
02 Pf-Publisher-Num PIC 9(4).
02 Pf-Publisher-Name PIC X(20).
02 Pf-Publisher-Address PIC X(40).
FD REPORT-FILE
REPORT IS Purchase-Requirements-Report.
WORKING-STORAGE SECTION.
01 File-Stati.
02 Pr-Status PIC X(2).
88 Pr-Rec-Not-Found VALUE "23".
02 Bf-Status PIC X(2).
88 Bf-Rec-Not-Found VALUE "23".
02 Pf-Status PIC X(2).
01 Current-Semester PIC 9.
01 Eof-Names.
02 FILLER PIC 9 VALUE 0.
88 End-Of-Pr-File VALUE 1.
88 Not-End-Of-Pr-File VALUE 0.
02 FILLER PIC 9 VALUE 0.
88 End-Of-Books VALUE 1.
88 Not-ENd-Of-Books VALUE 0.
02 FILLER PIC 9 VALUE 0.
88 End-Of-Publishers VALUE 1.
REPORT SECTION.
RD Purchase-Requirements-Report
CONTROLS ARE FINAL
Pf-Publisher-Name
PAGE LIMIT IS 66
HEADING 2
FIRST DETAIL 8
LAST DETAIL 50
FOOTING 55.
01 TYPE IS REPORT FOOTING.
02 LINE 56.
03 COLUMN 29 PIC X(23)
VALUE "*** END OF REPORT ***".
01 TYPE IS PAGE HEADING.
02 LINE 2.
03 COLUMN 27 PIC X(30)
VALUE "PURCHASE REQUIREMENTS REPORT".
03 COLUMN 77 PIC X(6)
VALUE "PAGE :".
03 COLUMN 84 PIC Z9 SOURCE PAGE-COUNTER.
02 LINE 3.
03 COLUMN 26 PIC X(32) VALUE ALL "-".
02 LINE 6.
03 COLUMN 2 PIC X(24) VALUE "PUBLISHER NAME".
03 COLUMN 33 PIC X(11) VALUE "BOOK TITLE".
03 COLUMN 57 PIC X(3) VALUE "QTY".
03 COLUMN 65 PIC X(14) VALUE "LECTURER NAME".
01 Pr-Print-Line TYPE IS DETAIL.
02 LINE IS PLUS 2.
03 COLUMN 1 PIC X(20) SOURCE Pf-Publisher-Name
GROUP INDICATE.
03 COLUMN 24 PIC X(30) SOURCE Bf-Book-Title.
03 COLUMN 57 PIC ZZ9 SOURCE Pr-Copies-Required.
03 COLUMN 63 PIC X(20) SOURCE Pr-Lecturer-Name.
PROCEDURE DIVISION.
BEGIN.
DISPLAY "Enter the semester number.".
DISPLAY "First or second -> "
WITH NO ADVANCING.
ACCEPT Current-Semester.
OPEN INPUT Purchase-Req-File.
OPEN INPUT Book-File.
OPEN INPUT Publisher-File.
OPEN OUTPUT Report-File.
INITIATE Purchase-Requirements-Report.
MOVE LOW-VALUES TO Pf-Publisher-Name.
START Publisher-File
KEY IS GREATER THAN Pf-Publisher-Name
INVALID KEY DISPLAY "START Pub file status" Pf-Status
END-START.
READ Publisher-File NEXT RECORD
AT END SET End-Of-Publishers TO TRUE
END-READ.
PERFORM Print-Requirements-Report UNTIL End-Of-Publishers.
TERMINATE Purchase-Requirements-Report.
CLOSE Purchase-Req-File,
Book-File,
Publisher-File,
Report-File.
STOP RUN.
Print-Requirements-Report.
SET Not-End-Of-Books TO TRUE.
MOVE Pf-Publisher-Num TO Bf-Publisher-Num.
READ Book-File
KEY IS Bf-Publisher-Num
INVALID KEY
DISPLAY "Book file error 1 Bf-status = " Bf-Status
DISPLAY "Publisher Rec = " Publisher-Rec
MOVE ZEROS TO Bf-Publisher-Num
END-READ
DISPLAY "bfstatus = " Bf-Status
PERFORM Process-Publisher
UNTIL Pf-Publisher-Num NOT EQUAL TO Bf-Publisher-Num
OR End-Of-Books
READ Publisher-File NEXT RECORD
AT END SET End-OF-Publishers TO TRUE
END-READ.
DISPLAY "Pub Rec" Publisher-Rec.
Process-Publisher.
SET Not-End-Of-Pr-File TO TRUE.
MOVE Bf-Book-Num TO Pr-Book-Num.
READ Purchase-Req-File
KEY IS Pr-Book-Num
INVALID KEY
DISPLAY "Pr-File error 1 Pr-status = " Pr-Status
DISPLAY "Book Rec = " Book-Rec
MOVE ZEROS TO Pr-Book-Num
END-READ
DISPLAY "PrStatus = " Pr-Status
PERFORM UNTIL Bf-Book-Num NOT EQUAL TO Pr-Book-Num
OR End-OF-Pr-File
IF Current-Semester = Pr-Semester THEN
Generate Pr-Print-Line
END-IF
READ Purchase-Req-File NEXT RECORD
AT END SET End-Of-Pr-File TO TRUE
END-READ
END-PERFORM
READ Book-File NEXT RECORD
AT END SET End-Of-Books TO TRUE
END-READ.
DISPLAY "book rec " Book-Rec.