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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.
The OS/360 sort program, IERRCO00, operates by dividing the input data into sections, sorting each section in main memory, and writing the sorted section to intermediate datasets on either direct-access storage devices (DASD) or magnetic tape. Final merge phases then merge the sections to produce the sorted output.
Pages in category "IBM mainframe operating systems" ... Job Control Language; ... Mainframe sort merge; Support programs for OS/360 and successors; Michigan Terminal ...
<opcode> is a function such as "FSF" to forward space one file or "REW" to rewind the tape. <nn> is a number that can specify the number of times the operation is to be performed, such as forward space two files. The VOL statement provides disk or tape volume label information for standard label checking. The format is // VOL SYSxxx,<volume>.
Sort may refer to: Sorting, any process of arranging items in sequence or in sets Sorting algorithm, any algorithm for ordering a list of elements; Mainframe sort merge, sort utility for IBM mainframe systems; Sort (Unix), which sorts the lines of a file; Sort (C++), a function in the C++ Standard Template Library; SORT
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]
IBM Data Facility Sort (DFSORT) Release 10.0 In addition to replacing part of the device support in the base MVS/SP, DFP replaces the Linkage Editor and several utility programs and service aids. DFP is no longer available as a separate product, but has become part of Data Facility Storage Management Subsystem, under the name DFSMSdfp.
The IBM 2560 Multi-Function Card Machine (MFCM) [6] is a peripheral first offered on the Model 20. Due to its reliability problems, often involving card jams, the acronym was frequently interpreted as referring to many less favorable names. The 2560 has two hoppers into which punch cards can be placed.