access method
access method Any algorithm used for the storage and retrieval of records from a data file or database. Access methods are of two kinds: those that determine the structural characteristics of the file on which it is used (its file organization) and those that do not (as in secondary indexing (see indexed file) and data chaining). In the first case essentially the same algorithm is used for the retrieval of a record as was used for its original physical placement, whereas in the second these algorithms are quite distinct. Hence in the first case the same term may be used interchangeably (and loosely) for both the access method and the file organization (see random access (def. 2), sequential access).
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ISAM Acronym for indexed sequential access method. , ISAM Acronym for indexed sequential access method. An access method for data files, supporting both sequential access and indexed access (see indexed… B-tree , VSAM Acronym for virtual storage access method. An access method for data files, supporting both sequential access and indexed access (see indexed fi… File , file1 / fīl/ • n. a folder or box for holding loose papers that are typically arranged in a particular order for easy reference: a file of correspond… random access , random access
1. A type of memory access in which storage locations can be accessed in any order. The term is applied primarily to the main memory of… Access , ac·cess / ˈakˌses/ • n. 1. a means of approaching or entering a place: the staircase gives access to the top floor. ∎ the right or opportunity to use… Ftp , File transfer protocol (FTP) is an Internet-standard application for transferring files. FTP was first developed in 1971 as part of the U.S. Departme…
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access method