Unit 5
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- Up to this point in the class, we have relied on QSAM files for all of our file processing needs. Now we look at VSAM – an alternative access
method: Virtual Storage Access Method.
- Time to try Exercise #14 in which we read a QSAM file and build a KSDS.
- Watch the Video (0:53) that covers
the details of Exercise #14.
- In the last exercise for the class, we read KSDS records randomly.
- Nested Cobol programs represent an interesting alternative to traditionally-built Cobol programs. In particular, nested programs can help you build ad hoc or one-off programs more quickly and with fewer errors.
- This Video (5:03) covers the details.
- Here is the code for the nested program that was discussed in the video.
- We also look briefly at Cobol pointers and the SYNCHRONIZED qualifier.
- This Video (11:49) covers the details.
- Here is the code for the pointer/stack program.
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