database performance 中文意思是什麼
database performance
解釋
數據庫性能- 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。
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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。 -
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。 -
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。 -
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。 -
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。 -
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。 -
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。 -
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。 -
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。 -
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。 -
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。 -
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。 -
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。 -
Consulting with the customer regarding current network, system, and database performance, analysis of network bottlenecks and establishment of optimization programs, and communication with the customer organizations regarding technical testing, and data backup, to ensure continued operation
聽取顧客關于網路、系統、數據庫性能的現狀，現場分析瓶頸所在制定性能調優方案，並與顧客交流溝通組織相關的技術測試，顧客的數據備份，確保萬無一失。 -
Have introduced the demand analysis of the e - commerce web site of " yue tan shi jie " in detail in the thesis, have put forward the plan of structure design of the database on the basis of demand analysis, and during function of website, how be according to the actual conditions of the website, make procedure to control database space, memory change, data file change situation regularly ; how to carry on the database performance optimize according to the controlling report ; how to make backup schemes
論文中詳細介紹了在「月壇視界」網站需求分析的基礎上提出的數據庫結構設計方案，以及在網站的運行期間，如何依據網站的實際情況，編製程序實現對網站數據庫的表空間變化、內存變化、數據文件變化等情況進行定時監控；如何基於監控報告進行數據庫性能優化；如何從實際出發制定切實可行的數據庫備份方案。 -
However, disabling parallel checking can cause a decrease in overall database performance
但是，禁用并行檢查會導致數據庫的總體性能降低。 -
Ongoing evaluation of the database performance helps you minimize response times and maximize throughput, yielding optimal performance
日常數據庫性能評估有助於使響應時間最小化並使吞吐量最大化，從而實現最佳性能。 -
Research on oracle 10g database performance optimization
數據庫性能優化的研究 -
In view of the engineering practice of chmavc " s assistant materials management information system, this paper discusses some engineering problems relation to the design of a large database and to the application of database technology. exposition of two important aspects - - then design of a large database and improvement of database performance concerning practice is given. it includes the design of a data model, the compress technique of data, indexes set - up, optimization of inquiry, integrity check and security control
從工程實踐的角度，論述了為實現系統功能而在數據庫設計和軟體結構設計中所採用的方法和技術；並論述了為達到系統性能而在實現中所採取的各項措施，重點討論了大型數據庫的設計和改善數據庫性能這兩個重要方面，內容包括設計數據模型、建立索引、查詢優化、完整檢查和安全控制等。 -
The bufferpool improves database performance by allowing data to be accessed from memory instead of from disk
緩沖池通過允許從內存而非磁盤訪問數據來提高數據庫的性能。
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