Structured ANS COBOL: An advanced course using 1974 and 1985 ANS COBOL
This 2-part course is the easiest way for you to learn what you want to know about ANS COBOL, whether you're developing new programs or maintaining old ones. The two parts are independent: you can choose either or both, depending on your current skills.Part 1: A Course for Novices teaches beginners how to design and code COBOL programs that prepare reports. Because report programs often call subprograms, use COPY members, handle one-level tables, and read indexed files, this book covers those subjects, too.Part 2: An Advanced Course is a complete guide to the 1974 and 1985 elements that all programmers should know how to use (although many don't). So it covers: sequential, indexed, and relative file handling...alternate indexing and dynamic processing...internal sorts and merges...the COPY library...subprograms...single- and multilevel table handling...character manipulation...and, if you're working on a 1974 compiler, proper use of 1974 code so your programs will be easy to convert when you switch to a 1985 compiler.Alone or together, I'm convinced you'll find these books to be the most effective COBOL course you've ever used.
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File handling in COBOL
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05 FILLER PIC 1985 standards AGE-INDEX alternate index alternate key chapter CHARACTERS COBOL code COBOL program COPY member DATA DIVISION DELETE disk DOS/VSE dynamic access END MOVE entries ERRTRAN example Figure format gram I/O operation IBM mainframe indexed file Input/output internal sort INVALID KEY clause inventory master file inventory transaction INVENTORY-MASTER-RECORD INVMAST invoice IT-ITEM-NO item number ITEM-NUMBER ITEM-PRICE key field LABEL RECORDS master record merge module OCCURS OS/MVS output procedure paragraph PIC PIC PIC PIC X VALUE PIC X(3 PIC XX presents price table primary key PRINT-AREA Procedure Division pseudocode READ statement record description RECORDS ARE STANDARD relative file RELATIVE KEY relative record number report preparation program RETURN statement REWRITE SELECT statement sequence sequential file SORT statement SPACE-CONTROL specified STANDARD RECORD CONTAINS structure chart structured programming subprogram subscripts topic transaction file transaction record valid transaction VALTRAN VALUE SPACE variable-length records VSAM WORKING-STORAGE SECTION WRITE XI XI ZERO