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How to createing new version of GDG with out loosing the
data in preaves GDG version?
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Answer Posted / amrita
While mentioning the GDG file in JCL, write (+1) infront of
the file name eg: DD DSN=xxx.yyy(+1),DISP=(NEW,,)
| Is This Answer Correct ? | 5 Yes | 0 No |
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OPEN INPUT StudentFile READ StudentFile AT END SET EndOfStudentFile TO TRUE END-READ PERFORM UNTIL EndOfStudentFile DISPLAY StudentId SPACE StudentName SPACE CourseCode SPACE YOBirth READ StudentFile AT END SET EndOfStudentFile TO TRUE END-READ END-PERFORM CLOSE StudentFile STOP RUN what will be output
Yes. Because the alternate key would first locate the primary key, which in turn locates the actual record. Needs twice the number of I/Os.
