join optimization 中文意思是什麼
join optimization
解釋
聯接優化- join : vt 1 接合，連接，使結合。2 參加，加入，作（團體等的）成員；和（某人）作伴。3 回（原崗位），歸（隊...
- optimization : n. 最佳化，最優化。
-
In distributed query optimization, this paper aims at how to reduce communication cost, adopting semi - join program
對于用傳統的sdd - 1演算法來尋找全歸約程序進行改進。 -
Join order optimization in multi - relation sql query
查詢中連接順序的優化 -
In addition, we summarize some spatial join algorithms based on r - tree index and their cost estimation models. we also give out a query optimization algorithm framework based on dynamic programming algorithm, and integrated basic r - tree index method and query optimization mechanism into sadbs ii
另外，本文還總結了幾種基於r樹索引的空間連接演算法及其代價評估模型，利用動態編程演算法給出了查詢優化的演算法框架，並在sadbs中集成了基本的r樹索引方法和查詢優化機制。 -
This thesis studies the following key implementation techniques of ordb, i. e., the query optimization techniques of ordb, the join predicate processing and join predicate index techniques, the general index structure and concurrency control strategy, and the reference based join algorithms
本文主要研究對象關系數據庫中的查詢優化處理技術、連接謂詞處理及索引技術、通用索引結構及其並發控制、基於引用的連接演算法等關鍵技術。 -
Contains information about using the date correlation optimization database set option to improve query performance for queries that perform an equi - join between two tables whose
列相關聯的兩個表之間執行equi - join的查詢的查詢性能。 -
Processing and optimization of join operation in spatial database
空間數據庫中連接運算的處理與優化 -
This paper refers to the indexing technologies of b ~ + - tree in dbms, and combine it with the sparse numbering schema, and proposes a new indexed structure ? b ~ + - tree structural index. it is very important for the optimization of join operation and element location in xml query
本文將關系數據庫中b樹索引技術與sparsenumberingschema相結合，提出了一種新的xml文件索引結構? ? b ~ +樹結構索引，它對xml查詢中連接操作和元素定位操作的優化有著重要作用。
分享友人