Ads
related to: record oriented files
Search results
Results From The WOW.Com Content Network
An alternative to a Record-oriented file is a stream file, in which the file system treats a file as an unstructured sequence of bytes. The applications may, but need not, impose a record structure. This approach significantly reduces the size and complexity of the library and reduces the number of utilities required to maintain files.
The DDM record-oriented file models consist of file attributes, such as its creation date, the date of last update, the size of its records, and slots in which records can be stored. The records can be of either fixed or varying length, depending on the media used to store the file's records. DDM defines four kinds of record-oriented files:
A circle record might contain a numeric radius and a center that is a point record containing x and y coordinates. Notable applications include the programming language record type and for row-based storage, data organized as a sequence of records, such as a database table, spreadsheet or comma-separated values (CSV) file.
Virtual Storage Access Method (VSAM) [1] is an IBM direct-access storage device (DASD) file storage access method, first used in the OS/VS1, OS/VS2 Release 1 (SVS) and Release 2 (MVS) operating systems, later used throughout the Multiple Virtual Storage (MVS) architecture and now in z/OS.
A self-contained collection of information about a single object; a record is made up of a number of distinct items, called fields. In record-oriented filesystems, a record is a basic unit of device-to-program data transfers. Files in record-oriented filesystems are structured collections of records. Records may have a fixed length or variable ...
The more sophisticated record-oriented file systems have more in common with simple databases than with other file systems. CMS file system – The native file system of the Conversational Monitor System component of VM/370; Files-11 – early versions were record-oriented; support for "streams" was added later
Heap files are lists of unordered records of variable size. Although sharing a similar name, heap files are widely different from in-memory heaps. In-memory heaps are ordered, as opposed to heap files. Simplest and most basic method insert efficient, with new records added at the end of the file, providing chronological order
Within database management systems, the record columnar file [1] or RCFile is a data placement structure that determines how to store relational tables on computer clusters. It is designed for systems using the MapReduce framework. The RCFile structure includes a data storage format, data compression approach, and optimization techniques for ...