optimized database 中文意思是什麼

Based on the principle of advance, adaptive, reliability, high efficiency and flexibility, the general configuration strategy and the key technology has been deeply analyzed and optimized with the systematic and community in general and adaptive and contraposition in detail. the harmonic in both respects has been realized technically and the contradiction between adaptive and community solved. with the synthetic developing tool based on the database, the capp system called synthetic development capp ( sd - capp ) which is of the properties of synthetic, modular redeveloped and integrated has been developed

本論文以提高系統的先進性和實用性以及高效，靈活為基本原則，對capp的總體構成策略及其關鍵技術進行了深入地分析和優化，宏觀上充分體現系統性和通用性，微觀上切實體現針對性和適應性，技術上實現二者的協調統一，較好地處理了適應性與通用性這對既相互關聯、又相互制約的矛盾；採用基於數據庫的綜合開發工具模式，研究並開發了綜合式、模塊化、具有二次開發和一定集成功能的capp系統? ?基於數據庫的典型零件capp綜合開發系統（ syntheticdevelopmentcapp ） （ sd - capp ） 。

However, the farther analysis in the paper indicates that the strategy of parameter configuration in current connection pool technique is static state with 1 - order enactment while initializes connection pool without self - optimized adjustment according as the variety of application demand, the operation results of high use frequency database are not cached and users visit the same database independently. the multi - propose connection strategy cannot control the database operation for the same transaction and cannot ensure the acid attribute, etc. in according with the defections mentioned above, the service technique of self - optimized connection pool is presented in this paper and the composing structure for self - optimized connection pool is designed, then, some strategy in dynamic parameters adjustment, transaction management and data cache for connection pool is improved

然而，通過本文的研究分析，現有數據庫連接池技術的參數配置策略是靜態的，連接池初始化時進行一次設定，不能根據應用需求的變化而動態調整;連接池的核心管理機制中，沒有對使用頻率較高的數據庫操作結果進行緩存，多個用戶依然各自獨立地完成相同的數據庫訪問;使用的連接復用策略無法控制屬于同一個事務的多個數據庫操作，不能保證事務的acid屬性等。

The experimental results on orl face database show that by the proposed improved method, eigenvalues of the optimized covariance matrices become larger and the matrices inverses become more stable

在orl人臉庫上的實驗表明，優化后協方差矩陣的特徵值均顯著變大，使該矩陣的逆陣穩定性得到了提高。

If the technicians applied technology in the wrong, even achieving the business logic, but probably leading to many vices including low performance, low scalability, close coupling, low software duplication. so how to assemble the j2ee technology reasonable and achieve a system with high performance and high expansibility is my research emphasis in the thesis. in order to solve the problems and implement efficient web application, the paper put forward ejs _ mvc model according mvc pattern and we can assemble component by using ejs _ mvc model, it can solve many problems of web application and improving system with clear flow and clear function partition, in addition, due to controller is the most importance in the ejs _ mvc model, so the thesis also discuss some problems about controller design ; if the model is not designed accurately, system performance will encounter fatal influence, so the article lucubrate ejb technology from ejb choice, ejb optimized design, database access, design pattern etc and bring forward some strategies and methods about how to build efficient business tier ; finally based on ejs _ mvc model, a example that contains simple business logic is developed according to the object - orient software engineering thinking and some strategies and methods proposed by the thesis, in the process of achieving system function, the emphasis is probing into how t o assemble and apply technology reasonable and providing a new thinking thread and method contributing to build high effective and flexible j2ee application

由於j2eeweb應用是由組件組成，因此為了解決上述問題，實現高效的應用，本文首先從如何合理組合組件入手，找到一種方法使各組件能具體分工而又緊密合作，在深入研究各組件基礎上，根據mvc模提出了ejs _ mvc模型概念，指出可按此模型組合各層組件，該模型可以解決傳統web開發中存在的問題，而且具有系統流程與系統功能劃分清晰，可擴展性、可維護性強等優點，另外由於控制器是ejsmvc模型的重中之重，它起到承上啟下的作用，它設計好壞直接關繫到整個應用的性能、伸縮性與擴展性，因此又探討了控制器設計的有關問題；另外如果模型設計不當的話，對系統性能造成的影響可能是致命的，因此本文又從ejb組件選擇、 ejb調優設計、數據庫訪問和設計模式等方面對ejb技術作了全面的分析研究，指出在業務層中如何避免太多網路遠程調用和提高業務層性能，特別是根據前面的分析總結出了業務層的優化分層組合模型，這個模型的使用無疑會使業務層具有較高的性能與伸縮性；最後選擇一個業務邏輯較簡單的系統，使注意力集中到運用的j2ee技術上來，按照ejs _ mvc模型與軟體工程流程以及本論文所提出的方法與策略實現業務邏輯，在實現過程中具體探討如何合理運用組合技術，就多層j2ee體系結構的設計思想作深入的探討實踐，為實現高效、靈活的多層j2ee應用提供一種新的思路及方法。

Optimized method for data query in distributed database

分散式數據庫數據查詢的優化處理方法

This paper presents a new group route algorithm based on ad hoc network, which partitions the nodes to some groups, broadcasts the request of route to different groups, consequently finds out an near optimized path rapidly. the algorithm lightens the load on network, and lays a foundation for mobile database communication

本文提出了adhoc網路中一種新的分組路由策略，該策略將以節點分組為基礎，使路由請求在組之間廣播，從而快速有效地找出近優的路徑，減輕網路負載，為移動數據庫的通信提供了基礎。

For the purpose of battlefield terrain simulation, in order to solve the problem of building and real - time display of large scale terrain, designed and developed a 3d terrain model database of missile force virtual training, optimized the model with its key technology, such as levels of detail, texture mapping etc, and proposed a solution for real - time display of large scale terrain based on view - point and double measurement which has been successfully applied into the simulation training of missile force

摘要以戰場地形模擬為目的，針對某導彈陣地大規模地形生成與實時顯示問題，設計開發了適用於某導彈部隊虛擬訓練的三維地形模型數據庫，採用層次細節、紋理映射等關鍵技術對模型進行優化處理，提出基於視點的雙度量法實時顯示大規模地形，將將其成功應用於某導彈部隊虛擬訓練中。

If a program is coded with static sql statements, packages database objects that contain the optimized and executable form of sql statements must be created in the database before the associated program can execute the sql statements contained in the package

如果用靜態sql語句編寫一個程序，那麼必須先在數據庫中創建包（包含sql語句的優化且可執行形式的數據庫對象） ，然後相關的程序才能執行包中包含的sql語句。

During the implementation, we optimized the query and statistic to database by file organization, spliting tables and creating indexes, which enhanced the performance of query and statistic to databases, so we can support information to decision module quickly and correctly

在實現過程中，根據問題需要從文件組織、分表和建立索引對查詢統計進行了優化，提高了數據庫的查詢統計效率，可以為決策模塊快速準確的提供信息。

You can add database storage in a 3 - d data format optimized for handling by postgresql - known as the

您可以添加三維數據格式的數據庫存儲，該格式針對postgresql處理而優化即

In accordance with the features of on - line teaching and learning, college on - line curriculum resources should be optimized in the following manner : first, constructing on - line courses with strong interactivity and ready accessibility ; then, creating a units - based database apt for secondary development under the unified teaching system ; and finally, designing curriculum websites to integrate on - line resources and share information

為此，高校應根據網路教學的特點，進一步優化網路教學資源：構建具有強交互性、快速搜索等特徵的網路課程；在統一的教學服務系統下，編制基於知識點、便於二次開發的素材庫；建設教學網站，集成教學資源，實現信息共享。

According to the charactar of bank, the refer integrality of database is designed, the integrity of affair is developed and the sql is optimized. in the last research probe into the sql attacking and give some advice of security

針對銀行業務的特點，課題在系統開發中重點對數據庫參照完整性設計，並進行了事務的完整性開發和sql語句的優化工作。另外在數據庫安全方面，課題研究了sql注入式進攻的原理，並提出了一些防範的方法。

In order to ensure the lowest cost, using the methods of the plant management and operational research theory realize the maintenance according to the classification of the plant. because of the data which associated with the classification, optimized maintenance cycle, maintenance decision is very much, we must setup the plant maintenance decision support system which includes knowledge database, database, model database, and reasoning mechanism based on the using of the modern information analysis and collection of the experience and knowledge of the experts

由於設備分類、最佳維修周期求解或預測、決策分析處理，都將涉及大量復雜的信息，要想從中獲取對實施維修有指導意義的結論，仍採用老式的經驗判斷是不夠的，必須利用現代的信息分析、處理及推理方法，廣泛收集該領域專家的經驗、知識，建立相應的知識庫、數據庫、模型庫、推理機等，藉助計算機完成設備的綜合維修決策，實現對這一系統具有真正價值的維修指導。

Work is flowing again. we optimized database tables and backed up the database

已經恢復正常。我們優化了數據庫表並對數據庫進行了備份。

With opc data information accessing technology and configuration software operate it, this system stores the real time data collected from dcs into database. and with the optimized database statistic management, the system can issues the production data report on web, and supervises the real time locale parameters of product line with dynamic web pages

系統將集散控制系統站採集到的實時生產數據，通過數據信息訪問技術和組態軟體operateit將數據存儲到數據庫中，再經數據庫優化的統計管理，用web的方式發布生產數據報表，並以動態網頁的形式對生產線現場的實時數據參數進行監視。

Spatial database can supply high - powered capability of storing and managing spatial object, well capability of organizing and restricting spatial data, optimized spatial analysis operation function

空間數據庫能夠提供高效的空間對象存儲管理能力，良好的空間數據組織和約束能力，優化的空間分析操作功能。