case study, COBOL Programming

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cobol program for generate a eb bill

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Selection of file organization, Selection of file Organization: While ...

Selection of file Organization: While designing a file, the programmer should select an appropriate association for a file. The order in which the choice is to be made is as s

Start statement - indexed files, START STATEMENT: The START statement ...

START STATEMENT: The START statement places the files to the initial logical record whose record key satisfies the condition specified by the KEY phrase. The access mode shoul

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CR and DB (Credit and Debit Sign): The two characters that is CR or DB symbol may appear only at the rightmost place of the picture. They are similar to the minus sign edit ch

Simple merge verb, SIMPLE MERGE VERB: Like sorting, the merging of fil...

SIMPLE MERGE VERB: Like sorting, the merging of files is often required in different commercial application. It is likely to merge two or more files with the help of one MERGE

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Buffers: The Modern computers are able of handling I-O operations independent of the CPU by means of the hardware termed as data channel. For illustration, if two buffers a

Block contains and records contains clause, BLOCK CONTAINS CLAUSE: Int...

BLOCK CONTAINS CLAUSE: Integer -1 of the BLOCK CONTAINS clause indicates the block size either in terms of records or in terms of characters. For illustration, BLOCK CONTAINS

Program for simple perform, PROGRAM FOR SIMPLE PERFORM: We have to wri...

PROGRAM FOR SIMPLE PERFORM: We have to write a program to elaborate simple PERFORM statement Identification division. Program- id.  Perf1. Environment division. Da

Updating of the relative and indexed files, UPDATING OF THE RELATIVE AND IN...

UPDATING OF THE RELATIVE AND INDEXED FILES: The Sequential files are updated by creating a new master file from an existing old master file and a transaction file. Such an Upda

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