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打字猴 | 活在白日夢裡面的打字猴 | coherence0815.wordpress.com Reviews
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DISTINCT and GROUP BY | 打字猴
https://coherence0815.wordpress.com/2015/05/30/distinct-and-group-by
DISTINCT and GROUP BY. DISTINCT and GROUP BY. DISTINCT是用來移除duplicated data，而GROUP BY通常用來分組後和aggregate function (e.g. SUM, AVG, MAX, …)一起使用。 打字猴最近開始研讀execition plan時，發現當GROUP BY不使用aggregate function的時候，DISTINCT和GROUP BY會產生相同的結果，也有相同的execution plan. 感覺上有點像是以前在學C C 時，發現其實a * 1024和a 10編譯出來的結果是一樣的。 Int main() { int a = 100; int b = (a 10); int c = (a * 1024); }. 5 : int b = (a 10);. Mov eax, DWORD PTR a$[ebp]. Shl eax, 10 ; 0000000aH. Mov DWORD PTR b$[ebp], eax. 6 : int c = (a * 1024);. Shl eax, 10 ; 0000000aH.
Database Unit Testing | 打字猴
https://coherence0815.wordpress.com/2015/08/15/database-unit-testing
打字猴這一陣子開始認真思考針對database的stored procdure(or Function)做Unit Test時，技術上要克服的一些困難之處。 當初打字猴想要在公司的專案寫Unit Test時，卻發現幾乎沒辦法寫Unit Test，因為當時的code是untestable，除非把現有的code做修改，否則根本沒辦法寫Unit Test。 列了10個會讓你的code難以測試的原因 打字猴覺得最需要被克服的兩個困難點在於”global state”和”dependency”，其實 這篇文章. Dependency如果切不掉，那就不能算是在做Unit Test 而global state會讓你的Unit Test難以進行。 我們可以發現misko有個open source project在找出singleton，足見他對global state的重視). 打字猴認為這個部分必須要用VM snapshot rollback來解決 畢竟透過teardown function來手動清除table中的資料並不是非常的可靠。 Use try catch in C# →. On 在VS 2008 Expre...
什麼是Unit Test | 打字猴
https://coherence0815.wordpress.com/2014/08/16/what-is-unit-test
Google Unit Test Framework. In computer programming, unit testing is a method by which individual units of source code, sets of one or more computer program modules together with associated control data, usage procedures, and operating procedures, are tested to determine if they are fit for use. Intuitively, one can view a unit as the smallest testable part of an application. 根據定義，Unit Test就是用來測試你程式中的每一個Unit(單元)，測看看這些Unit是否合用 而所謂的Unit就是程式中每個smallest testable part(可測試的最小部分)。 Hello World of Unit Test in C C.
Queries to accumulating sum | 打字猴
https://coherence0815.wordpress.com/2015/05/24/queries-to-accumulating-sum
Queries to accumulating sum. Queries to accumulating sum. 我們透過了inline query (sol 1)和透過JOIN (sol 2)的方式來達到我們的目的，這兩者有甚麼不同呢 哪一個solution的performance比較好呢 打字猴在table中多塞幾筆資料，然後我們用execution plan來看一下結果. Inline query (solution 1)的performance較佳，原因在於solution 1的(SELECT SUM(income) FROM tb Data AS a WHERE a.id = b.id)是在compute scalar後剩下一筆資料才向主table做JOIN。 但是solution 2中卻是用1 2 … 3000 = 4501500筆資料和主table的3000筆資料做JOIN。 程式的執行結果如下 yyyy,income 2013,120 2014,350 2015,650. Hello SQL Code Guard. Leave a Reply Cancel reply. Top Pos...
Link Errors and C Runtime Library | 打字猴
https://coherence0815.wordpress.com/2014/08/14/link-errors-and-c-runtime-library
Link Errors and C Runtime Library. Link Errors and C Runtime Library. 這是在Windows的平台上，使用Visual Studio寫C C 時，常遇到的問題。 LIBCMTD.lib(printf.obj) : error LNK2005: printf already defined in MSVCRTD.lib(MSVCR80D.dll). LIBCMTD.lib(fclose.obj) : error LNK2005: fclose already defined in MSVCRTD.lib(MSVCR80D.dll). 簡單的來說，這是因為你的project和3rd party library各別使用了不同版本的CRT(C Runtime Libraries)，而導致一些symbol重複定義的問題。 Multi-threaded Debug DLL (/MDd). Google C Style Guide Overview →. Leave a Reply Cancel reply. Unit Test Overview &...
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Blog de coherence - AMC - Skyrock.com
Mot de passe :. J'ai oublié mon mot de passe. Mise à jour :. Abonne-toi à mon blog! N'oublie pas que les propos injurieux, racistes, etc. sont interdits par les conditions générales d'utilisation de Skyrock et que tu peux être identifié par ton adresse internet (67.219.144.170) si quelqu'un porte plainte. Ou poster avec :. Retape dans le champ ci-dessous la suite de chiffres et de lettres qui apparaissent dans le cadre ci-contre. Posté le dimanche 14 septembre 2008 12:18. Ou poster avec :. N'oublie pas q...
start – Coherence group
The junior research team at the Institute of Photonics and Electronics CAS. Our long term mission is to explore novel paths to future electrodynamic and electronic therapeutic and diagnostic methods in biotechnology and medicine. To fulfill our mission we develop computational methods and nanotechnology enabled experimental tools to analyze both active and passive electromagnetic properties of biomaterials from the level of molecules to tissues. And biophoton photocount statistics. And tailored to suit b...
Coherence, Inc - Home
Products and Custom Tools. Coherence, Inc. launches newly designed website to provide direct sales to worldwide clients. Project Manager, Public Sector. Welcome to Coherence, Inc. Are focused on providing expertise around the migration process. We provide a range of intelligent technology solutions designed to meet the challenges of public and private sector organizations. Our principal solutions areas are underpinned by an extensive portfolio of professional services. Quality, Quality, Quality. To be pr...
Quantum Coherence | A blog about some interesting aspects of science, life, the universe, and everything. By Florian Marquardt.
A blog about some interesting aspects of science, life, the universe, and everything. By Florian Marquardt. Skip to primary content. Skip to secondary content. January 1, 2013. The Alpha Centauri system consists of two stars and at least one planet. It takes light about 4 years to go there from our Sun. Distances are not drawn to scale (otherwise you wouldn’t see anything). Even in the star system closest to our sun, the alpha Centauri system, an extrasolar planet candidate has been detected recently.
Wowmatcher | Warcraft Player and Guild Recruitment
Http:/ coherence.wowstead.com/. Http:/ coherence.wowmatcher.com. Guild Region - PST. Throne of the Four Winds. Have fun,respect others, know your class and Don't die. We use a modified SLS shroud system.Here's a link to read more about the system http:/ www.wow.com/2009/06/11/the-ins-and-outs-of-the-shroud-loot-system/. Current Progression and Achievements:. Currently working on togc 25 man. We currently have 2 grps running regular TOC 10 and TOGC. Tribute to Mad Skill/Glory of the Raider.
打字猴 | 活在白日夢裡面的打字猴
打字猴這一陣子開始認真思考針對database的stored procdure(or Function)做Unit Test時，技術上要克服的一些困難之處。 Continue reading →. Number of index or table scans performed. Continue reading →. Physical Reads and Logical Reads. 打字猴最近在研讀Performance Tuning和MSSQL的Cache，在此對Physical Reads和Logical Reads做個簡單的紀錄。 在觀察這2個數字需要先SET STATISTICS IO ON。 Continue reading →. Plan Cache in MSSQL Server. Continue reading →. DISTINCT and GROUP BY. DISTINCT是用來移除duplicated data，而GROUP BY通常用來分組後和aggregate function (e.g. SUM, AVG, MAX, …)一起使用。 透過Sqlite project提...
Coherence 2011 | Artificial Intelligence, Coherence and Judicial Reasoning (Friday, June 10 2011) Workshop at ICAIL 2011: The Thirteenth International Conference on Artificial Intelligence and Law
Artificial Intelligence, Coherence and Judicial Reasoning (Friday, June 10 2011) Workshop at ICAIL 2011: The Thirteenth International Conference on Artificial Intelligence and Law. ARTIFICIAL INTELLIGENCE, COHERENCE AND JUDICIAL REASONING. In particular, the following topics are interesting points for discussion:. The role of the highest courts in establishing coherence in legal system (in particular, in the cases of legislative errors). Argumentative schemes employed in judicial review cases perform...
Coherence 2013 | Artificial Intelligence, Coherence and Judicial Reasoning (Monday, June 10 2013) Workshop at ICAIL 2013: The Fourteenth International Conference on Artificial Intelligence and Law
May 17, 2013 · 8:38 pm. The selection of the papers is done. The program will be announced soon! We are very happy to annnouce that the notifications of acceptance / rejection have been sent to the workshop authors. We congratulate the authors of accepted papers and we are very grateful for such good submissions. The list of accepted papers together with the preliminary program of the workshop will be published soon. May 15, 2013 · 7:18 pm. Notification deadline moved to May 17. The Workshop’s Goals.
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Coherence Academy
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