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Explain sorting techniques in cobol program? Provide the sort file definition, the sort statement, its syntax and meaning
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Scenario: I have 3 Input Files.Read the first i/p file and depending on certain business logic, I want to read wither i/p file-2 or i/p file-3.Now, depending on certain business logic applied to the record read from either file-2 or file-3, I decide to write them to either output file-2 or output file-2. Question: How many job steps are necessary to implement a solution for the above.
01 a pic x(4) value 'abcd' 01 b pic 9(3) can we move from a to b.if possible what would be stored in b.
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COBOL 
