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GeekInterview.com > Interview Questions > Mainframe > COBOL
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Question: Explain the difference between an internal and an external sort, the pros and cons, internal sort syntax etc?
Answer: An external sort is not COBOL; it is performed through JCL and PGM=SORT. It is understandable without any code reference. An internal sort can use two different syntaxes: 1.) USING, GIVING sorts are comparable to external sorts with no extra file processing; 2) INPUT PROCEDURE, OUTPUT PROCEDURE sorts allow for data manipulation before and/or after the sort. |
| May 05, 2007 06:36:23 |
#2 |
| bala_alias |
Member Since: May 2007 Total Comments: 1 |
RE: Explain the difference between an internal and an ...
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external sorting is used to refer to the sorting of huge volumes of data where the available main memory is not enough to handle the data. internal sorting is used for small volumes of data..
ext sorting is mostly less efficient |
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