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REWRITE STATEMENT:
As in the situation of a relative file, the REWRITE statement needs that the file should be opened in the I-O mode, and if the SEQENTIAL access mode is specific, the value of the record key of the record being replaced should be equal to that of the record last from this file.
The INVALID KEY condition occurs in the cases as shown below:
(i) Whenever the record key does not match that of an existing record in the file.
(ii) For the SEQUENTIAL access, whenever the value of the record key is not similar to that of the last record read from the file.
Introduction to COBOL: In the year 1959, a new language named the COBOL ( CO mmon B usiness O riented L anguage) was introduced remembering the business purpose application
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WRITE STATEMENT: The WRITE Statement verb releases a record in an output file. The syntax for the WRITE statement can be unlike depending on the output device and the medium us
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I uploaded a file from PC to Mainframe, variable LRCL 256. In my COBOL program I defined it as FD INPUT-FILE LABEL RECORDS ARE OMITTED BLOCK CONTAINS 0 RECORDING MODE
OCCURS CLAUSE - PROGRAM: We have to write a program to elaborate occurs clause. Get names and marks of the students and show them on the screen. identification division.
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