vsam 中文意思是什麼

vsam 解釋
商業數據仍然在大型主機上以非
  1. Vsam arranges records by an index key, relative record number, or relative byte addressing

    Vsam通過一個索引鍵值,相關記錄號或者相關位元組地址來組織記錄。
  2. In systems with vsam, a named structure consisting of a group of related components, forexample, a data component with its index component

    在具有虛擬存儲訪問法( vsam )的系統中,由一組相關部件組成的一種命名結構,例如帶有其索引部件的數據部件。
  3. 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

    在虛擬存儲存取方法( vsam )中,用於定序和定位基簇中的一個或多個數據記錄的項的匯集.每個備用索引記錄包含一個備用關鍵字的值和一個或多個指針.當該備用索引支持某個關鍵字順序數據集時,每個數據記錄的主關鍵字值就是這種指針.當該備用索引支持某個輸入順序數據集時,該數據記錄的rba (相對位元組地址)值就是這種指針
  4. An index is a db2 object a separate vsam dataset that is comprised of an ordered set of keys extracted from one or more columns of the corresponding table

    索引也是一種db2對象(一個單獨的vsam數據集) ,它由一組排好序的鍵組成,這些鍵是從相應表中的一個列或多個列抽取出來的。
  5. Vsam is used for direct or sequential processing of fixed - length and variable - length records on dasd

    Vsam用來對dasd上定長或變長的記錄進行直接或順序的處理。
  6. Rational rapid developer also provides facilities to import definitions of legacy assets, such as ims or vsam database definitions

    Rational rapid developer也提供了一系列的工具來插入遺留資產的定義,比如ims或者vsam數據庫定義。
  7. Websphere information integrator can be used to extend the db2 sql api with transparent access to non - ibm relational databases such as oracle or sql server and materialize non - relational data sources like xml streams, message queues, vsam, ims, and so on as relational tables - thereby truly creating a corporate - wide common data model

    之類的產品來擴展db2 sql api ,使其可以透明地訪問非ibm關系數據庫(例如oracle或sql server ) ,通過該產品還可以將非關系數據源(例如xml流、消息隊列、 vsam 、 ims等)物化為關系表從而真正創建一個公司級的公共數據模型。
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