计算机术语“alternate-index record”的中英文意思、释义、翻译及用法-计算机英汉双解词典

术语	alternate-index record
释义	alternate-index record 备用［替换］索引记录 In VSAM,a collection of items used to sequence and locate one or more data records in a base cluster.Each alternateindex record contains an alternate key value and one or more pointers.When the alternate index supports a key sequenced data set,each data record’s prime key value is the pointer.When the alternate index supports an entrysequenced data set,the data record’s RBA value is the pointer. 在虚拟存储存取方法(VSAM)中,用于定序和定位基簇中的一个或多个数据记录的项的汇集。每个备用索引记录包含一个备用关键字的值和一个或多个指针。当该备用索引支持某个关键字顺序数据集时,每个数据记录的主关键字值就是这种指针。当该备用索引支持某个输入顺序数据集时,该数据记录的RBA(相对字节地址)值就是这种指针。
随便看	operators operator's console operator station operator station task(OST) operator unit console opm opposite control field op register OPS OPS 5 OPS 83 OPS$ logins optical optical bar reader optical barcode reader optical cable optical character optical character background reflectance optical character mark matching optical character photocell matrix optical character reader optical character recognition (OCR) optical character recognition technology(OCRT) optical computer optical coupler

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