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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]
The operation of SORT is directed by control statements, which are largely compatible among various IBM and third-party sort programs. The SORT or MERGE statement defines the sort keys— the fields on which the data is to be sorted or merged. This statement identifies the position, length, and data type of each key.
Software for this model did not include an operating system—the RCA 70/15 Programming System consisted of an "Assembly System, Loader Routines, Input-Output Control, Test Routines, Utility Routines, Communication Control, System Maintenance Routines, Report Program Generator, and Sort/Merge." Sort/Merge required a system with 8 KB of memory.
On April 19, 1988, IBM announced [9] the umbrella term Data Facility Storage Management Subsystem for facilities provided by the programs IBM MVS/Data Facility Product (MVS/DFP) Version 3 Release 1.0; IBM Data Facility Data Set Services [c] (DFDSS) Version 2 Release 4.0; IBM Data Facility Hierarchical Storage Manager (DFHSM) Version 2 Release 4.0
Basic Direct Access Method, or BDAM is an access method for IBM's OS/360 and successors computer operating systems on System/360 and later mainframes. BDAM "consists of routines used in retrieving data from, and storing data onto, direct access devices." [1]: p.5 BDAM is available on OS/360, OS/VS2, MVS, z/OS, and related high-end operating ...
Still, Trump's nomination of Scott Bessent to the top Treasury post raised hopes that tariffs will be more measured. And with only 21 trading days left in the year, analysts, investors, and market ...
A partitioned data set (PDS) [7] is a data set containing multiple members, each of which holds a separate sub-data set, similar to a directory in other types of file systems. This type of data set is often used to hold load modules (old format bound executable programs), source program libraries (especially Assembler macro definitions), ISPF ...