查詢關系 的英文怎麼說
中文拼音 [zhāxúnguānxì]
查詢關系
英文
query relation-
This thesis firstly introduces new demands of aerial product logistics support under high - tech war and some defects of traditional logistics support, and puts forward a kind of system model of aerial product logistics support following data - sharing of cals, and emphasizes detm. secondly it sets forth application of step and xml in the ietm, researchs conversion of xml schema and relation schema, and simply researchs mapping of xml and express. afterword, a based - xml framework of info - transfer between different platform are presented, according to this framework, the author establish a archetypal system of helicopter information query system based xml and dbms
本文首先介紹了現代高科技戰爭條件下對航空產品維修保障的新要求,概述了傳統的後勤保障技術的不足,遵循cals的數據共享的理念,提出了航空產品維修保障系統模型,重點研究了互動式電子技術手冊;接著分析了step標準和xml技術在製作互動式電子技術手冊中的應用,重點研究了肌模式和關系模式之間的相互轉換,初步研究了xml和express語言之間的映射關系;然後,提出了基於xml的一種解決航空產品信息跨平臺傳遞的解決方案,給出了該方案的具體實現流程和詳細的通訊協議,並開發了基於xul和數據庫的某型號直升飛機的信息查詢原型系統。Third, this dissertation analyzes the complicacy of result size estimation problem for xml structure based query optimization compared to its counterpart in traditionally relational database, and proposes a full - featured result size estimation algorithm for xml query, sxm. for simple path expression query, this dissertation proposes a dynamic synopsis model for xml data based on the concept of f - stable and b - stable, xmap. for complicated path expression query, this dissertation adopts an improved bifocal sampling method for result size estimation
第三,分析了xml結構化查詢優化中的查詢代價估計問題與傳統關系型數據庫中的查詢代價估計問題的區別,提出了一套完整的xml結構化查詢代價估計體系sxm ,包括對簡單路徑表達進行查詢代價估計的動態xml數據統計模型xmap ,對復雜路徑表達進行查詢代價估計的雙焦點例舉法,以及對值匹配條件進行查詢代價估計的基於小波的多維直方圖方法,並能將多種查詢表達的查詢代價估計結果結合在一起,以給出一個完整的xpath查詢的代價估計。So we extent its function by adding sqlquery expressions which contain sql. it gets results from queries by jdbc api and convert it into xml format. then it uses xquery complier to query in succession in order to integrate related databases
Xquery語言本身並不能實現該功能,所以我們對它進行擴展,增加嵌套sql語句的sqlquery表達式,使用jdbc來查詢sql語句,而將產生的結果轉換為xml文檔,再使用xquery編譯器來實現查詢要求,達到集成關系數據庫的目的。For example, if you ran a query for four out of five columns in a table, then used the diagram pane to add the fifth column to the definition of the query, that fifth column s data will not automatically be added to the results pane
例如,如果您用查詢搜索到表的五列中的四列,然後使用「關系圖」窗格將第五列添加到查詢的定義中,則第五列的數據不會自動添加到結果窗格中。Secondly, the artificial neural networks and mixed evolutionary computation are employed into the mathematical simulation of complex geological structure, and with gis and visualization technique, the method of geological digital 3 - d modeling and visualization is presented. so, not only the functions of making geological section and querying spatial information could be achieved, but also the spatial distribution of geological structures and their complex relationship could be described visually. thereby an interactive and convenient way for engineering geological design could be actualized
( 2 )提出了復雜地質構造數學模擬的神經網路方法與混合進化方法,並利用gis技術和可視化技術,深入研究了數字地質三維建模及其可視化方法,實現了地質三維任意剖切、信息空間查詢與管理等功能,從而為直觀描述地質構造的空間展布及其相互間的復雜空間關系,以及快捷、交互地進行工程地質設計提供了新的途徑與手段。The gis developed with the combination of mapx controls and object language, realizes the integral saving and management of spatial data and attribute data, and theoretically ensures the datashare and the integrality of data. such a system has been applied to the daily management of chongqing expressway, is proved to be of active contribution to the work efficiency and effect. it will surely promote the development of its in the future
基於oraclespatial ,運用mapx控制項和面向對象語言相結合開發的gis應用系統,實現對gis空間數據和屬性數據的一體化存儲和查詢,即不將地理信息存儲在原來的地理信息系統中,而是存到關系數據庫中,這種一體化技術實現了數據管理的規范化和數據操縱的標準化,使用戶可以比較方便的組織各類空間信息處理事務,在數據完整性方面提供了有效保證。Involuntarily, questions of these engineering datas " management appear, datas " persistance only depending relational model and rdbms is greatly insufficient, so this paper carefully studies object - relational mapping based on rdbms based on the analyse of home & overseas actualities, correlative theories and realizing methods of object - relational mapping, we find opl based on rdbms is the most suitable for object relatinoal mapping of clera. based on the engineering application analyse of opl in clera, function requirements, database modes, interface criterions and functions, running modes of opl have being detailedly described. with the framework of microsoft dna, a kind of realizing method of opl based on com / dcom / activex component technology has being brought forward, and this paper describes realizing keys from base tables " definition, object id and class hx class and inheritance of class, object storage, parallel control and affair, object query, object nesting, relations between objects, support of complex data types, right control of object and buffer management of object
本文在分析對象?關系映射技術的國內外現狀、相關理論及實現方法的基礎上,研究發現基於rdbms的opl是目前最適合clera的對象?關系映射方法;在clera的opl應用分析的基礎上,詳細描述了opl的功能要求、數據庫模式、介面規范與功能、運行方式等內容;結合microsoftdna開發框架,提出了一種基於com dcom activex組件技術的opl實現思路,並從基本表定義、對象標識與類標識、類與類繼承、對象存儲、並發控制與事務、對象查詢、對象嵌套、對象間聯系、復雜數據類型的支持、對象級權限控制及對象緩沖管理等幾方面概述了實現要點。When a query on the relational views is issued, it is repeatedly rewritten using the rules. this process generates number of navigation plans to compute the query ; the cost of these plans is then estimated based on a simple cost model that takes network accesses as the primary cost parameter. in this way, an efficient execution plan is selected for processing the query
當根據關系視圖發出一個查詢時,它被重復的使用重寫規則來重寫,這個過程產生大量的導航方案來運算查詢。這些方案的代價是根據代價模型來評估的。代價模型是用網路訪問作為原始的代價參數。In the following chapters, the interoperable model of webgis, multi - level b / s architecture, multi - thread for network computing and concurrent access, dcom, intelligent agent, intelligent spatial search engine, information security are discussed in detail. with these key technologies, the system of publishment and analysis of city air quality based on webgis is designed and implemented
借鑒這些關鍵技術,在arcims的基礎上,設計並實現了基於webgis的全國重點城市空氣質量發布系統,將空氣質量狀況與空間數據結合起來,生動直觀的反映了各主要城市的空氣質量狀況,方便了用戶的查詢,為環保事業作出應有的貢獻。Besides, with the slope maintenance responsibility information system, you can identify the maintenance responsibility of all registrable man - made slopes in hong kong through the internet
此外,您亦可透過網際網路查詢政府斜坡維修責任信息系統所登記的人造斜坡及相關資料。The function design of system includes writing down amendment and pretreatment about spatial database and attribute database. this system provides common and basic functions of gis. besides, we can make out the topographical maps, planimetric maps and skiagraph, structure objects of highway construction of design and can inquire two - way between spatial information and attribute information
系統功能設計包括空間數據庫和屬性數據庫的錄入、修改以及預處理;系統還提供了一般gis系統應具備的基本功能,並在此基礎上進行涵蓋公路設計施工的地形圖、平縱縮圖、構造物等圖形信息與屬性信息的雙向查詢,並運用掙值法等對相關屬性進行分類統計以供有關公路工程項目的各方使用。Library defines actions to query relational databases
庫定義了用來查詢關系數據庫的操作。Query relational database with xpath
使用xpath查詢關系數據庫The sql server mobile query processor is a powerful tool for querying data stored in your relational database
Sql server mobile查詢處理器是查詢關系數據庫中存儲數據的強大工具。During such a refresh, analysis services queries all underlying relational data sources to determine whether there have been changes in tables views which are included in the data source view
在此類刷新過程中, analysis services將查詢關系數據源以確定數據源視圖中包括的表/視圖是否發生了更改。It allows developers to bridge the gap between xml and relational data. you can create xml view of your existing relational data and work with it as if it was an xml file
Sqlxml用於:用sql server 2000構建web服務構建web站點以從sql server發布數據用xpath查詢關系數據庫像對待xml那樣更新關系數據將xml加載到sql server中通過url oledb ado或You can create xml view of your existing relational data and work with it as if it was an xml file. sqlxml allows you to : build data driven website that publishes data from your sql server database
Sqlxml用於:構建數據驅動的站點,該站點可以從sql server數據庫發布數據用xpath或sql查詢關系數據庫像對待xml那樣更新關系數據將xml加載到sql server中通過url 、 oledb / ado或This program is the sub - program which is tackling key problems for heilongjiang province committee of science and technology - " supply power eiss and dss ", containing the design of network scheme, database design and related application software mainly
本課題為黑龍江省科委攻關課題《供電企業信息支撐與決策支持系統》的子課題,主負責該系統的網路方案設計、 ipsecvpn網關的設計、供電營業管理子系統的設計、查詢子系統及語音查詢子系統的設計等工作。This paper presents the overall structure, design idea and systematic function and application condition of information analysis and management system on hydrology and sediment of the yangtze river and mainly introduces function realization of 8 sub - systems of editing sub - system of vector data, management discipline of object relation database, computation sub - system of hydrology and sediment sub - system, visualized analysis sub - system of water and sediment information, analysis sub - system of the yangtze river channel evolution, inquiry sub - system of fundamental information, 3 dimensional visualized sub - system of the yangtze river, network publication sub - system of hydrology, sediment and river channel information
摘要闡述了長江水文泥沙信息分析管理系統的總體結構、設計理念和系統功能以及系統應用情況,重點介紹了矢量數據編輯子系統、對象關系數據庫管理子系統、水文泥沙專業計運算元系統、水沙信息可視化分析子系統、長江河道演變分析子系統、基本信息查詢子系統、長江三維可視化子系統、水文泥沙河道信息網路發布子系統等8個子系統的功能實現。In this approach, the candidate networks from trained keyword queries or executed user queries are classified and stored in the databases, and top - k results from the cns are learned for constructing cn language models cnlms. the cnlms are used to compute the similarity scores between a new user query and the cns from the query. the cns with relatively large similarity score, which are the most promising ones to produce top - k results, will be selected and performed
基於模式圖的在線系統執行機制是,用戶提交關鍵詞查詢后,系統利用數據庫全文檢索引擎為每個具有文本屬性的關系生成包含關鍵詞的元組集,這些元組集與數據庫模式圖相結合,形成元組集圖,然後對元組集圖做寬度優先搜索,生成候選網路candidate network 。分享友人