structural query language 中文意思是什麼
structural query language
解釋
結構詢問語言- structural : adj. 構造上的，結構上的，組織上的。adv. -ly
- query : n 1 質問；詢問；疑問，懷疑。2 敢問，請問〈在疑問句前單獨使用〉。3 【印刷】（打在原稿或校樣上的）...
- language : n 1 語言；（某民族，某國的）國語；語調，措詞。2 （談話者或作者所使用的）言語，語風，文風，文體。3...
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We first present a number of desiderata for an xml - based query language, and based on this criterion, we introduce the syntax of a simple core ian - guage for semistructured data and then describe four extensions that have resulted in working prototypes. second, we present the algorithm for computing the result of a regular expression on data graph with cycles, the first - order interpretation of querying language for semistructured data, and explore structural recursion and bisimulation in semistructured data and propose an efficient and systematic way to computing a bisimulation between the two graphs. we also proposed and implemented a web querying system with database features
基於這些準則，對一個簡單的半結構數據查詢核心語言的語法提出了兩方面擴充；給出了計算數據圖中正規表達式的演算法；對半結構數據查詢語言的一階邏輯描述、結構遞歸和數據圖的雙態模擬（ bisimulation ）等問題進行了研究，提出了一種判定數據圖的bisimulation演算法；在xml數據查詢語言研究的基礎上，設計並實現了一種具有數據庫查詢特性的web查詢系統原型。
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