COBOL FILESTATUS 98
我正在动态创建COBOL程序上的PS文件（基于输入文件的时间戳），并将其用作输出文件来编写事务详细信息，但是如果接收到两次输入文件，则使用重复数据集将失败。因此，如果文件已分配，我想重写文件。为此，我尝试了所有这些选项IO/Extend/Outper以打开输出文件，但是FileStatus 98是否有
任何想法如何做到这一点？
DISPLAY '5000-B-->'
PERFORM 5000-ALLOCATE-ACK-FILE [ Allocate File Dynamically]
DISPLAY '5000-A-->'
DISPLAY 'I-O--B-->'
OPEN OUTPUT OUT-ACK-FILE
DISPLAY 'WS-OUTACK-STATUS-->' WS-OUTACK-STATUS
DISPLAY 'I-O--A-->'
Error:
ALLOCATE OK 00
5000-A-->
I-O--B-->
IGZ0255W Dynamic allocation failed for ddname OUTACK while processing file OUT-A
return code from the dynamic allocation was X'4', error code X'FFFFFFFF
information code X'0'.
WS-OUTACK-STATUS-->98
I-O--A-->
I am dynamically creating a PS file (based on timestamp from input file) on the Cobol program and using it as output file to write transaction details, but if the input file s received twice, job is failing with duplicate dataset. So I thought of rewrite the file if the file is already allocated. To do this i have tried all these options I-O/Extend/Output to open the output file but it is failing with Filestatus 98
Any idea how can to do this?
DISPLAY '5000-B-->'
PERFORM 5000-ALLOCATE-ACK-FILE [ Allocate File Dynamically]
DISPLAY '5000-A-->'
DISPLAY 'I-O--B-->'
OPEN OUTPUT OUT-ACK-FILE
DISPLAY 'WS-OUTACK-STATUS-->' WS-OUTACK-STATUS
DISPLAY 'I-O--A-->'
Error:
ALLOCATE OK 00
5000-A-->
I-O--B-->
IGZ0255W Dynamic allocation failed for ddname OUTACK while processing file OUT-A
return code from the dynamic allocation was X'4', error code X'FFFFFFFF
information code X'0'.
WS-OUTACK-STATUS-->98
I-O--A-->
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您没有显示分配方式的详细信息，或者您如何检查数据集的存在。
无论如何，在z/os上，
dispPS数据集的分配的参数确定书面数据是否替换了当前内容（如果有），或者是否将其附加到当前内容（如果有的话） ）。disp = new和disp = old替换disp = mod附加。开放参数不会有所不同。
You don't show details of how the allocation is done, or how you check for existence of the data set.
Anyway, on z/OS the
DISPparameter of the allocation of a PS data set determines whether the data written replaces the current content (if any), or whether it is appended to the current content (if any).DISP=NEWandDISP=OLDreplaceDISP=MODappends.The OPEN parameters don't vary.