primary file key

基本解釋

The retrieval of a data record in an indexed file by the primary (or optionally, alternate) key within the data record .
在索引文件中，通過數(shù)據(jù)記錄中的主要關(guān)鍵字或可選關(guān)鍵字進行數(shù)據(jù)記錄的檢索的一種方法。
Note that if the physical file is keyed (perhaps because it has a Primary Key constraint), its index will also be moved on or off of SSD with these commands.
注意，如果物理文件使用了鍵控（可能因為它有一個 Primary Key 約束），其隱式索引也將通過這些命令被移動到 SSD 或從中移出。
This paper introduces the design & implementation of a parallel file system based on direct data access, and gives out the primary functions and key technologies of parallel file system.
該文介紹了一種基于直接數(shù)據(jù)訪問的并行文件系統(tǒng)的設(shè)計和實現(xiàn)，闡明了該并行文件系統(tǒng)具備的主要功能及解決的關(guān)鍵技術(shù)問題。