J. N. Severn Trend Water
J. N. Severn Trend Water
COBOL training course contents
Introduction to COBOL
Compilation, linkage editor. Compile errors, compiler options. Divisions, syntax and format, COBOL character set, program structure.
COBOL statement structure
COBOL words, format of statements.
Identification entries, Environment entries, Data division: FD, record descriptions, hierarchy and level numbers, description-string entry.
File and Working-Storage Sections
Literals, figurative constants, redefines clause, data representation, Usage clause, synchronization, sign clause.
File status codes; Open, Read, Write, Close, Stop, Goback; Accept, display; Move, Justified, data name qualification, reference modification.
Out-of-line, With test ... Until, ... Times, in-line statement; Go to statement.
Design techniques, design considerations, procedure names, program structure.
Printed output, Write, advancing option, editing characters; Initialize.
Conditional statements: IF, class, sign and relation conditions, condition-name conditionals, Set, compound conditions, logical operators. Evaluate, Continue.
Rounded option, On Size Error option, Add, Subtract, Multiply, Divide, Compute.
File access modes, Select. Indexed and relative files. Open, Close, creating / reading sequential access files, Write, Read, Invalid key clause, reading, writing / updating Random access files, Rewrite, Delete, Start.
Call, Using clause - calling program/called program, Linkage Section, returning control.
Subscripted tables: One/two/three dimensional tables, Perform, variable length tables. Indexed tables: Set, using an index; Search. Copy code: Copy, Suppress, Replacing.
Inspect, String, Unstring. COBOL/370 LE/370 and Intrinsic Functions.
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We write our own courses; courseware does not just consist of slides and our slides are diagrams not bullet point text. A typical chapter provides clearly defined objectives with a chapter overview, slides with text underneath, a quiz at the end to check the learning of the students. Hands on exercises are at the end and are used to reinforce the theory.