performance database 中文意思是什麼

performance database 解釋
性能數據庫
  • performance : n. 1. 執行，實行，履行；完成；實現；償還。2. 行為，動作，行動；工作。3. 性能；特性。4. 功績；成績。5. 演奏；彈奏；演出；（馴獸等的）表演；把戲。6. 【物理學】演績。
  1. Fsmail adopts and implements the asynchronous event driven mechanism, with all those network i / o operations in the server working under the non - blocking style ; accomplishes object - oriented heap with the dynamic array, adapted to any type of data ; adopts the multi - queue scheduling mechanism based on a fsm, easily to fulfill the extentions of delivery funtions ; fulfills the non - blocking domain name resolvement mechanism and the caching of the resolved results ; implements the non - blocking user database management and the caching of the user data recently accessed ; uses the unified memory pool management, avoiding the memory leakage and improving the performance of the fsmail server ; lastly, implements the log management server based on the c / s mode, eliminating the inconsistency of the logging metadata and being adapted to any kind of application logging

    Fsmail採用並實現了異步事件驅動機制，所有網路i o的實現使用了非阻塞方式；以動態數組實現了基於面向對象的堆隊列，屏蔽了堆數據的非一致性；使用了基於有限狀態機的多隊列郵件調度機制，為后續版本的擴展性提供了良好的介面機制；服務器內部實現了非阻塞的域名解析機制，並實現域名地址緩存；實現了非阻塞的用戶數據庫管理模塊，並實現用戶數據緩存；使用了統一的內存池管理機制，既防止了內存泄漏，又提高了服務器的性能；最後，還實現了基於c s模式的日誌管理服務器，屏蔽了日誌數據元的非一致性。
  2. Vldb 99, edinburgh, scotland, uk, 1999, pp. 266 - 277. 2 lo j l, barroso l a, eggers s j et al. rm an analysis of database workload performance on simultaneous multithreaded processors

    本文基於university of wisconsin - madison的存儲管理系統shore進行開發，實現了tpc - h中6個最具代表性的查詢，然後進行了一系列測試和實驗。
  3. Firstly, we study the construction of emotion - speech template database, and analyze the common features such as pitch, energy and formant. after choosing the useful features by using fuzzy entropy effectiveness analysis, we get better performance with the application of neural network. in addition, we propose some more efficient features such as speech rate, pitch slope, mel - frequency cepstral coefficients and its transient parameters, and design a processing model based on vector quantization for cepstral features to fusing different features

    本文首先介紹了情感語音數據庫的建立情況，然後研究了基音頻率、振幅能量和共振峰等目前常用的情感特徵在語音情感識別中的作用，並且通過一種基於模糊熵的特徵有效性分析方法進行了有效特徵的篩選，應用人工神經網路建立了初步的語音情感識別模型，經過實驗發現特徵篩選后系統的識別效果有著一定程度的提高。
  4. Whereas the programmer approaches the problem from the point of view of the application performance, a dba can approach the problem with an understanding of the database itself, and can offer advice and suggestions for the database layout, arrangement of tables and indexes, and effective use of informix and system resources, including data fragmentation, pdq priority, cpu time, memory utilization and data storage

    程序員是從應用程序性能的角度來考慮問題的，而dba考慮問題時理解了數據庫本身，從而可以對數據庫的布局、表和索引的安排，以及informix和系統資源（包括數據分段、 pdq優先級、 cpu時間、內存利用率和數據存儲）的有效使用提出意見和建議。
  5. Currently he improves performance of applications running in a multi - terabyte database environment

    目前他從事的工作是改進運行在數個tb數據庫環境下的應用程序的性能。
  6. The contents of this paper can be discribed as follows : at first, introduced several terms which have something to do with this system, for example wap, sms, ota, wig, wib, wml. then, analyzed and compared four kinds of mobile stock system model ; analyzed the requirements in theory, discussed the technology of push and web database ; designed the founction of the mobile stock value - added system ; established the system frame of the mobile stock system based on wireless internet browser ; discussed the security performance of mobile stock system, and designed a security scheme which may be received by stockholder, brokedealer, banker. finally, implemented the menu of mobile stock value - added system, and remote management it with the ota technology

    本文首先介紹了幾個重要術語，比如無線應用協議wap 、空中下載ota 、無線網際網路關wig 、微瀏覽器wib 、編寫無線應用菜單的語言wml ；然後分析、比較四種手機炒股模型；對系統的需求進行了理論分析；研究了「推拉」技術和web數據庫技術；設計了系統的功能框架；建立了基於微瀏覽器模式的手機炒股系統的體系結構和總體框架；探討了移動電子商務中的安全策略；設計了股民、證券交易商、銀行都可以接受的安全方案；最後實現了手機炒股系統的增值服務菜單以及利用ota技術對服務菜單的遠程管理。
  7. In this paper, taking one of the special processes - chromic acids anodizing for example, such administration methods as the key points control and the quality performance administration system for surface treatment process have been setup by process analysis and key points seeking. as for the complicacy of the quality control on metallurgical special processes and the huge statistic data, the quality information system of surface treatment have been established on the bases of computer database. this paper brings out the systematic evaluation way to setup reception test items by taking the reception test results as evaluation basis and sampling statistics as rules

    本文以鉻酸陽極氧化表面處理工藝為研究對象，通過工藝技術分析、尋找關鍵特性、建立對關鍵特性的控制等工作，研究建立了表面處理工藝動態質量管理系統；針對冶金特種工藝質量控制的復雜性及統計數據量大等特點，建立了以計算機數據庫管理為基礎的表面處理信息及處理系統；為解決冶金特種工藝原材料入廠復驗任務重的困難，建立了以原材料入廠復驗的試驗結果為評價基礎，以抽樣統計方法為依據的原材料入廠復驗項目優選系統等。
  8. In sql server 2005, the auto close process is asynchronous ; repeatedly opening and closing the database no longer reduces performance

    在sql server 2005中， auto _ close進程為異步進程；反復打開和關閉數據庫不會降低性能。
  9. He works as a db2 technical consultant in the ibm innovation center in stuttgart, germany and supports independant software vendors in testing db2 solutions, executing performance and tuning sessions and running competitve database migrations. please take a moment to complete this form to help us better serve you

    他在德國斯圖加特的ibm innovation center擔任db2技術顧問，並在測試db2解決方案、執行性能和調優以及運行競爭性數據庫移植方面為獨立軟體開發商提供支持。
  10. Since " a reasonable database connection management is important to the performance of an enterprise application, jdbc connection technologies were discussed in - depth. then with the core strategy : connectin reuse, a reasonable and efficient database connection pool was built, avoiding the freewheeling and ruless use of connections

    在總體設計的基礎上，對以下兩個關鍵技術以及技術難點給出了解決方案和具體的實現：一是重點探討了數據庫連接管理策略，因為它是決定應用系統性能的一個重要因素。
  11. Performance is reduced, due to increased i o on the source database resulting from a copy - on - write operation to the snapshot every time a page is updated

    源數據庫的性能受到影響。由於每次更新頁時都會對快照執行「寫入時復制」操作，導致源數據庫上的i / o增加。
  12. This would allow you to denormalize the database to improve query performance

    這就允許您降低數據庫的規范化以提高查詢性能。
  13. Pdo ( php data objects ) - a new native database abstraction layer providing performance, ease - of - use, and flexibility

    1最增的數據庫抽象層用於提供對數據庫訪問的對象，擁有良好的性能，易於使用和靈活性的特點
  14. Considering the above preconditions, aiming at tobacco daily business and requirements of data, this article presents the following : 1. to analyze business logic and data info a flow chart, based on software including ibm aix os, db2 udb according to the tobacco number one ’ s total design thoughtfulness 2. to analyze the factors affecting db2 database performance in detail in allusion to the characteristic of tobacco industry including large data, lots of users, data updating rapidly, and frequent visits ; 3

    基於以上前提，本文針對煙草企業日常業務和數據量的需求作了以下工作:從國家煙草專賣局煙草一號工程總體設計思路出發，分析工業企業的業務邏輯以及數據信息流圖，涉及的相關平臺，包括ibmaix操作系統、 db2udb通用數據庫系統。針對煙草行業數據量、用戶量龐大，數據更新迅速、用戶訪問頻繁的特點，詳細分析了影響db2數據庫性能的因素。
  15. With the characteristics of actual ship - board massmer having been duly considered, this lab - based massmer has been designed to have friendly interfaces, convenient operation and management, reliable performance and to be in conformity with the requirements of education and training. during the development of this system, a number of up - to - date technologies in the computer information area have been fully employed such as the technology in fieldbus, network, database, netdde and intouch etc. as a result, this system is characterized by the following points : 1

    在實驗室內建立的這套船舶機艙監測報警模擬系統，充分考慮並結合實際船舶機艙監測報警系統的特點，該系統具有良好的用戶界面，操作管理方便，工作可靠，符合教學和訓練需要，系統在開發過程中，充分利用了目前計算機信息領域的許多最新技術，如現場總線技術、網路技術、數據庫技術、 netdde技術、 intouch技術等，使本系統具有以下主要特點： 1
  16. Fitting currently district traffic control need digitizing, latticing, intelligentized, base on ic card and license plate identification technique, design develop latticing district vehicle pass in and out management system, specific analysis the system of basic function, performance index, software and hardware configuration, emphasize design database management system, last give the implement outline

    摘要為適應當前小區交通管理數字化、網路化、智能化的要求，基於ic卡與車牌識別技術，設計開發了網路化小區車輛進出管理系統，具體分析系統的基本功能、性能指標和軟、硬體配置，著重設計了數據庫管理系統，最後給出實施綱要。
  17. However, i get dramatically non - linear performance as the database grows

    然而，隨著數據庫的擴大，性能急劇地呈非線性發展。
  18. We analyzed the dependence of equivalent circuit parameters of mesfet switch on material and device structure. for modeling, we designed and fabricated six set of mesfet switches with different gate width, then measured their performance and extracted switch model parameters. mesfet switch database corresponding to the mmic product line is then established, and using the dependence of switch model parameters on gate peripheral we can attain the mesfet switch performance with any gate width through parameters scaling

    移相器電路採用gaasmesfet開關作為控制元件，研究了mesfet開關等效電路參數與材料和器件結構參數的關系，設計製作了不同柵寬的六組mesfet開關，並進行參數測試和模型參數提取，建立了相應于mmic工藝線的mesfet開關模型庫；根據開關模型參數隨柵寬的變化規律，可以實現任意柵寬mesfet開關的參數定標工作。
  19. Thoughtful database design can offer significant performance benefits, but it must begin early in the application development process

    考慮周詳的數據庫設計可以提供巨大的性能收益，但是這必須在應用程序開發過程的早期便開始著手。
  20. 1 dewitt d j, gray j. parallel database systems : the future of high performance database systems

    我們始終把研究掌握數據庫核心技術，開發先進的數據庫系統軟體放在重要位置。
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