Lessons
COBOL · Medium
COBOL · Medium. Ten lessons. Open-book quizzes. Lesson 1 free.
10 lessons · The Host · Lesson 1 free
Pass all ten lessons for the certificate. Sample · Claim
Lesson 1 · On the house
OCCURS DEPENDING
Variable length.
Lesson 2
REDEFINES
Overlays.
Lesson 3
COMP / COMP-3
Usages.
Lesson 4
Indexed files
Keys.
Lesson 5
Report writer
Optional.
Lesson 6
Error handling
Declaratives.
Lesson 7
Modern free form
>>SOURCE.
Lesson 8
Interfaces
REST via wrappers.
Lesson 9
Testing
Batch fixtures.
Lesson 10
Medium capstone
CSV-ish parse.
Sample certificate
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Certificate
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