noun
indexed sequential data set
A computing term for a data set organized with an index to allow both sequential and direct access. Used in mainframe and legacy system contexts.
このシステムでは、索引順編成データセットを使って大量のレコードを効率的に処理している。
This system uses an indexed sequential data set to efficiently process a large number of records.
A compound of 索引 (index), 順 (sequential), 編成 (organization), and データセット (data set), directly translating the English computing term 'indexed sequential data set'.