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The Sort/Merge utility is a mainframe program to sort records in a file into a specified order, merge pre-sorted files into a sorted file, or copy selected records. Internally, these utilities use one or more of the standard sorting algorithms , often with proprietary fine-tuned code.
Innovative Routines International (IRI), Inc. is an American software company first known for bringing mainframe sort merge functionality into open systems. [1] IRI was the first vendor to develop a commercial replacement for the Unix sort command, and combine data transformation and reporting in Unix batch processing environments. [2]
external sorting algorithm. External sorting is a class of sorting algorithms that can handle massive amounts of data.External sorting is required when the data being sorted do not fit into the main memory of a computing device (usually RAM) and instead they must reside in the slower external memory, usually a disk drive.
SORT uses one of a number of techniques for distributing the sections among secondary storage devices. Usually SORT can choose the optimal technique, but this can be overridden by the user. [8] SORT has three techniques that can be used if the intermediate storage is tape, and two if disk. [9] The tape techniques are:
A "panel" is a character-based "window" which can encompass all or part of a 3270 session's screen real estate. See Text-based user interfaces. Most mainframe software vendors used ISPF functions to create their applications, so their tools are similar in appearance and operation to ISPF.
As Russian troops approached Dniprorudne in their February 2022 invasion of Ukraine, the city's long-term mayor Yevhen Matvieiev could have fled to safety. Instead, he stayed behind to coordinate ...
A polyphase merge sort is a variation of a bottom-up merge sort that sorts a list using an initial uneven distribution of sub-lists (runs), primarily used for external sorting, and is more efficient than an ordinary merge sort when there are fewer than eight external working files (such as a tape drive or a file on a hard drive).
Alyssa Ahrabare, president of the French Coordination for the European Women's Lobby, called the verdict "a mixed victory." The men's sentences were below the national average, she said.