How do you sort in a COBOL program? Give sort file definition, sort statement syntax and meaning. An internal sort can use two different syntax’s. COBOL program for BUBBLE SORT (COBOL program for sorting an array). 4 thoughts on “SORTING A TABLE in COBOL” Jeanne Withers says: May 20, 2013 at 4:12 pm Thanks for this example, it helped me a lot. Regards, Jeanne Withers. Mainframe - Why External Sort is more efficient than Internal sort? 6 Answers are available for this question. Internal sort in cobol Internal sort in cobol. Sometimes,When i use a sort in program cobol, the windows is stopped.( sort a big files). This does what is known as an internal sort, I.E., the COBOL program does the sorting. The program reads an input file; while holding it in memory it sorts the records. Then it writes out the. 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 records either in ascending or descending order, so that sequential processing can be performed. There are two techniques which are used for sorting files in COBOL: External sort is used to sort files by using the SORT utility in JCL. We have discussed this in the JCL chapter. As of now, we will focus on internal sort. Internal sort is used to sort files with in a COBOL program. SORT verb is used to sort a file. Sort Verb. Three files are used in the Sort process in COBOL: Input file is the file which we have to sort either in ascending or descending order. Work file is used to hold records while the sort process is in progress. Input file records are transferred to the work file for the sorting process. This file should be defined in the File- Section under SD entry. Output file is the file which we get after sorting process. It is the final output of the Sort verb. Syntax. Following is the syntax to sort a file. SORT work- file ON ASCENDING KEY rec- key. Files used in the merge process: Input Files : Input- 1, Input- 2. Work File. Output File. Syntax. Following is the syntax to merge two or more files. MERGE work- file ON ASCENDING KEY rec- key.
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