Master Mainframe Technologies - COBOL, JCL, DB2, VSAM, CICS & More
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Practice Problems

Master COBOL, JCL, and mainframe skills with real-world scenarios

109
Total Problems
38
Beginner
47
Intermediate
24
Advanced

📊 Data Division

COBOL
Demonstrate different numeric PIC clauses: 9, S, V, P....
pic numeric data-types
COBOL
Work with alphanumeric (PIC X) and alphabetic (PIC A) data types....
alphanumeric alphabetic pic-x
COBOL
Create a record structure with group and elementary items....
group elementary record structure
Intermediate
COBOL
Explain and use computational data types COMP, COMP-1, COMP-2, COMP-3....
comp comp-3 binary packed-decimal
Intermediate
COBOL
Format numbers for display using edited PIC clauses: Z, *, $, comma, period....
edited-pic formatting display
Intermediate
COBOL
Use REDEFINES to interpret same storage in multiple ways....
redefines storage data-types