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file-在COBOL中写入顺序数据集使其成为不可访问的二进制文件

(file - Writing to Sequential Dataset in COBOL makes it an inaccesible binary)

发布于 2020-12-01 02:50:26

以下代码应采用顺序数据集作为通过DDINPUT的输入来描述银行帐户,并通过DDOUTPUT输出顺序数据集,其名称为余额大于$ 8,500,000的那些银行帐户所有者。但是,正如我们在堆栈溢出中那样,事实并非如此。

       IDENTIFICATION DIVISION.
       PROGRAM-ID.    TOPACCTS.
      *
       ENVIRONMENT DIVISION.
       INPUT-OUTPUT SECTION.
       FILE-CONTROL.
           SELECT INFILE ASSIGN TO DDINPUT
           ORGANIZATION IS SEQUENTIAL.
           SELECT OUTFILE ASSIGN TO DDOUTPUT
           ORGANIZATION IS SEQUENTIAL.
      *
       DATA DIVISION.
       FILE SECTION.
       FD  INFILE RECORD CONTAINS 80 CHARACTERS RECORDING MODE F.
       01  ACCT-FIELDS.
           05  LAST-NAME        PIC A(11).
           05  FIRST-NAME       PIC A(22).
           05  ACCT-NO-A        PIC 9(8).
           05  FILLER           PIC X(3) VALUE SPACES.
           05  ACCT-NO-B        PIC 9(8).
           05  FILLER           PIC X(9) VALUE SPACES.
           05  ACCT-BALANCE     PIC $,$$$,$$9.99.
      *
       FD  OUTFILE RECORD CONTAINS 80 CHARACTERS RECORDING MODE F.
       01  PRINT-ACC.
           05  LAST-NAME-O      PIC A(11) VALUE SPACES.
           05  FILLER           PIC X(2) VALUE SPACES.
           05  FIRST-NAME-O     PIC A(22) VALUE SPACES.
      *
       WORKING-STORAGE SECTION.
       01  WS-EOF   PIC A VALUE SPACE.
       01  RES      PIC 9(7)V99.
       01  WS-RECORD.
           05  WS-LAST-NAME        PIC A(11).
           05  WS-FIRST-NAME       PIC A(22).
           05  WS-ACCT-NO-A        PIC 9(8).
           05  WS-ACCT-NO-B        PIC 9(8).
           05  WS-ACCT-BALANCE     PIC $,$$$,$$9.99.

      *
       PROCEDURE DIVISION.
      *
           OPEN INPUT  INFILE.
           OPEN OUTPUT OUTFILE.
           PERFORM UNTIL WS-EOF = 'Y'
              READ INFILE INTO WS-RECORD
              AT END MOVE 'Y' TO WS-EOF
              NOT AT END PERFORM WRITE-RECORD
              END-READ
           END-PERFORM.
           CLOSE INFILE.
           CLOSE OUTFILE.
           STOP RUN.
      *
       WRITE-RECORD.
           COMPUTE RES = FUNCTION NUMVAL-C (ACCT-BALANCE).
           IF RES > 8500000
              DISPLAY "Adding " WS-FIRST-NAME " " WS-LAST-NAME "..."
              MOVE SPACES TO PRINT-ACC 
              MOVE WS-LAST-NAME    TO LAST-NAME-O
              MOVE WS-FIRST-NAME   TO FIRST-NAME-O
              DISPLAY "Writing " FIRST-NAME-O " " LAST-NAME-O "..."
              WRITE PRINT-ACC
              END-IF.

该代码正确地显示了余额大于$ 8,500,000的所有者的名称,但是编写不正确,因为在访问输出数据集时,VS Code引发以下错误:

无法打开文件:zowe_path。详细信息:文件似乎是二进制文件,不能作为文本打开。

我是COBOL的新手,我不知道在写输出时我在做什么错。可能是JCL引起了问题:

//TOPACJCL  JOB 1,NOTIFY=&SYSUID
//***************************************************/
//COBRUN  EXEC IGYWCL
//COBOL.SYSIN  DD DSN=&SYSUID..SOURCE(TOPACCTS),DISP=SHR
//LKED.SYSLMOD DD DSN=&SYSUID..LOAD(TOPACCTS),DISP=SHR
//***************************************************/
// IF RC = 0 THEN
//***************************************************/
//RUN     EXEC PGM=TOPACCTS
//STEPLIB   DD DSN=&SYSUID..LOAD,DISP=SHR
//DDINPUT   DD DSN=MY.DATA(INPUTD),DISP=SHR
//DDOUTPUT  DD DSN=MY.DATA(OUTPUTD),DISP=SHR
//SYSOUT    DD SYSOUT=*,OUTLIM=15000
//CEEDUMP   DD DUMMY
//SYSUDUMP  DD DUMMY
//***************************************************/
// ELSE
// ENDIF

希望你能为我提供帮助,因为在过去的几个小时中我一直在努力解决此问题。提前致谢!

编辑#1:添加了“将空间移动到打印ACC”,仍然不起作用。

Questioner
Sergio Rivera
Viewed
11
Bruce Martin 2020-12-01 16:05:25

尝试在更新记录之前将空格移至输出记录

 WRITE-RECORD.
           COMPUTE RES = FUNCTION NUMVAL-C (ACCT-BALANCE).
           IF RES > 8500000
              DISPLAY "Adding " WS-FIRST-NAME " " WS-LAST-NAME "..."

              Move space           to PRINT-ACC

              MOVE WS-LAST-NAME    TO LAST-NAME-O
              MOVE WS-FIRST-NAME   TO FIRST-NAME-O
              DISPLAY "Writing " FIRST-NAME-O " " LAST-NAME-O "..."
              WRITE PRINT-ACC
              END-IF.

基本上,你只是在更新LAST-NAME-OFIRST-NAME-O其余记录将为十六进制零,因此被识别为二​​进制。你将可以使用ISPF editFile-Aid在大型机上编辑文件