翻訳と辞書
Words near each other
・ data over cable systems interface specifications
・ data packet
・ data parallel haskell
・ data path
・ data processing
・ data protection act
・ data rate
・ data segment
・ data service unit
・ data set
data set organization
・ data striping
・ data structure
・ data structures language
・ data terminal equipment
・ data terminal ready
・ data transfer rate
・ data type
・ data warehouse
・ data warehousing


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data set organization : FOLDOC
data set organization
(DSORG) An IBM term for file structure. These include PS physical sequential, DA {direct access}, IS {indexed sequential}, PO {partitioned} (a library). This system dates from OS/360, and breaks down beginning with VSAM and VTAM, where it is no longer applied.
Sequential and indexed data sets can be accessed using either a "basic" or a "queued" "access method." For example a DSORG=PS file can use either BSAM (basic sequential access method) or QSAM (queued sequential access method). It can also be processed as a {direct file} using BDAM. Likewise a library can be processed using BPAM (basic partitioned access method), BSAM, QSAM, or BDAM. DSORG and access method are somewhat, but not completely, orthogonal.
The "basic" access method deals with {physical blocks} rather than records, and usually provides more control over the specific device. Each I/O operation using the "basic" access method reads or write


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