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Mainframe Development , Learn COBOL

COBOL – Subroutines

COBOL – Subroutines, Cobol subroutine is a program that can be compiled independently but cannot be executed independently. There are two types of subroutines: internal subroutines …Read More

Mainframe Development , Learn COBOL

COBOL – Internal Sort

COBOL – Internal Sort, Sorting of data in a file or merging of two or more files is a common necessity in almost all business-oriented applications. Sorting is used for arranging reco…Read More

Mainframe Development , Learn COBOL

COBOL – File Organization

COBOL – File Organization, File organization indicates how the records are organized in a file. There are different types of organizations for files so as to increase their efficiency of …Read More

Mainframe Development , Learn COBOL

COBOL – File Access Mode

COBOL – File Access Mode, Till now, file organization schemes have been discussed. For each file organization scheme, different access modes can be used. Following are the types of file …Read More

Mainframe Development , Learn COBOL

COBOL – Table Processing

COBOL – Table Processing, Arrays in COBOL are known as tables. An array is a linear data structure and is a collection of individual data items of same type. Data items of a table are in…Read More

Mainframe Development , Learn COBOL

COBOL – File Handling

COBOL – File Handling, The concept of files in COBOL is different from that in C/C++. While learning the basics of ‘File’ in COBOL, the concepts of both languages should not be corela…Read More