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  • Help to choose NoSQL database for project

    - by potapuff
    There is a table: doc_id(integer)-value(integer) Approximate 100k doc_id and 27?? rows. Majority query on this table - searching documents similar to current document: select 10 documents with maximum of (count common to current document value)/(count ov values in document). Nowadays we use PostgreSQL. Table weight (with index) ~1,5 GB. Average query time ~0.5s. Should I transfer all this to NoSQL base, if so, what?

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  • XSL - Unknown Error in FF media:content/@url

    - by danit
    I keep getting "Unknow Error occurred" when i try this in my XSLT: <table class="TEDtalks"> <xsl:for-each select="/rss/channel/item"> <tr> <td><xsl:value-of select="title"/></td> <td> <xsl:value-of select="media:content/@url" /> </td> </tr> </xsl:for-each> </table> The XML <rss> <channel> <item> <title>TEDTalks : Karen Armstrong: Let's revive the Golden Rule - Karen Armstrong (2009)</title> <itunes:author>Karen Armstrong</itunes:author> <description>Weeks from the Charter for Compassion launch, Karen Armstrong looks at religion's role in the 21st century: Will its dogmas divide us? Or will it unite us for common good? She reviews the catalysts that can drive the world's faiths to rediscover the Golden Rule.&lt;img src="http://feeds.feedburner.com/~r/TEDTalks_video/~4/th6FBgvV22o" height="1" width="1"/&gt;</description> <itunes:subtitle>Karen Armstrong: Let's revive the Golden Rule</itunes:subtitle> <itunes:summary><![CDATA[Weeks from the Charter for Compassion launch, Karen Armstrong looks at religion's role in the 21st century: Will its dogmas divide us? Or will it unite us for common good? She reviews the catalysts that can drive the world's faiths to rediscover the Golden Rule.]]></itunes:summary> <link>http://feedproxy.google.com/~r/TEDTalks_video/~3/th6FBgvV22o/647</link> <guid isPermaLink="false">http://video.ted.com/talks/podcast/KarenArmstrong_2009G.mp4</guid> <pubDate>Tue, 29 Sep 2009 12:46:00 -0500</pubDate> <category>Higher Education</category> <itunes:explicit>no</itunes:explicit> <itunes:duration>00:09:54</itunes:duration> <itunes:keywords>TED</itunes:keywords> <media:content url="http://feedproxy.google.com/~r/TEDTalks_video/~5/XT8k_DqlzGc/KarenArmstrong_2009G.mp4" fileSize="33726021" type="video/mp4" />

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  • GCD function in matlab

    - by SalemFayad
    hi, i am looking for a way to implement the "gcd" function used in matlab in another language but i really cant understand the way it functions. it says in http://www.mathworks.com/access/helpdesk/help/techdoc/ref/gcd.html that: "[G,C,D] = gcd(A,B) returns both the greatest common divisor array G, and the arrays C and D, which satisfy the equation: A(i).*C(i) + B(i).*D(i) = G(i)." but it says nothing about how it calculates C and D. i would be grateful if someone has a clearer idea about this subject! thanks:)

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  • Need help for a complex linq query

    - by Jipy
    Ok so I've got a DataTable here's the schema DataTable dt = new DataTable(); dt.Columns.Add("word", typeof(string)); dt.Columns.Add("pronunciation", typeof(string)); The table is filled already and I'm trying to make a linq query so that i can output to the console or anywhere something like : Pronunciation : akses9~R => (list of words) I want to output the pronunciations the most common and all the words that use it.

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  • data structure algorithms for database searching

    - by Ygam
    I was used to the traditional way of doing database searching with the following using wildcards for term searches using where clause for specific data like addresses and names but at other times, I found these common methods to produce code that is so bloated, especially when it comes to complex searches. Are there algorithms out there that you use for complex database searching? I tried to look for some but had a hard time doing so. I stumbled accross the binary search but I can't find a use for it :(

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  • An extended Bezier Library or Algorithms of bezier operations

    - by Sorush Rabiee
    Hi, Is there a library of data structures and operations for quadratic bezier curves? I need to implement: bezier to bitmap converting with arbitrary quality optimizing bezier curves common operations like subtraction, extraction, rendering etc. languages: c,c++,.net,python Algorithms without implementation (pseudocode or etc) could be useful too. (especially optimization)

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  • Visual Studio 2008 ClickOnce cannot find exe in obj\Release

    - by e28Makaveli
    Project Output Path of the the main application is set to ......\bin\Release\ and was published flawlessly by ClickOnce before. For some strange reason, ClickOnce now fails with the following error: "Could not find file 'obj\Release\EMS.OCC600.Infrastructure.Shell.exe'. c:\WINDOWS\Microsoft.NET\Framework\v3.5\Microsoft.Common.targets 2341 9 Infrastructure.Shell" Anyone run into this before? TIA.

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  • Where can I find a list of English phrases?

    - by Marcus Adams
    I'm tasked with searching for the use of cliches and common phrases in text. The phrases are similar to the phrases you might see for the phrase puzzles on Wheel of Fortune. Here are a few examples: Safety First Too Good To be True Winning Isn't Everything I cannot find a list of phrases however. Does anybody know of such a list? Seriously, even a list of all Wheel of Fortune solutions would suffice.

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  • Selenium WebDriver Element

    - by cxyz
    How do i configure selenium WebDriver.I have automated test cases using Selenium.Now i need to automate upload and download of a file.So i have to automate using WebDriver.I had added webdriver-common-0.9.7376.jar.Now how do i instantiate for Internet Explorer? Am just decalring variable and using driver private static WebDriver driver; driver.findElement(By.id(upload)).sendKeys("file to be upload"); Is this correct?

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  • Scroll an input box to the cursor position in javascript

    - by sirlark
    I've written a simple JS function that places the cursor at the end of the contents of an input box when it receives focus (the most common action in the box being to append). I haven't checked in IE, but when there is more text than is visible, even moving the cursor to the end of input doesn't scroll the view to the end of input in firefox 3.6. Any idea how to do this? P.S. And no I'm not using JQuery, nor is it an option ;)

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  • Store GZIP:ed text in mysql?

    - by Industrial
    Hi! Is it a common thing for bigger applications and databases to GZIP text data before inserting it to the database? I'll guess that any full-text search on the actual text field will not be working before unzipping it again? Thansks

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  • I get an error when implementing tde in SQL Server 2008

    - by mahima
    While using USE mssqltips_tde; CREATE DATABASE ENCRYPTION KEY with ALGORITHM = AES_256 ENCRYPTION BY SERVER CERTIFICATE TDECert GO I'm getting an error Msg 156, Level 15, State 1, Line 2 Incorrect syntax near the keyword 'KEY'. Msg 319, Level 15, State 1, Line 3 Incorrect syntax near the keyword 'with'. If this statement is a common table expression or an xmlnamespaces clause, the previous statement must be terminated with a semicolon. please help in resolving the same as i need to implement Encryption on my DB

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  • C# How to to tell what process is using a file?

    - by JL
    I am getting a pretty common, "The process cannot access the file because it is being used by another process." Now I am nearly certain that the only process accessing this file is from code that I have written and I've been careful to use a using statement around accessing it. But to be 100% sure, is there anyway to check this programatically when this error occurs?

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  • Domain policy template won't show any controls

    - by Kingnebula
    I have the following code that i found on the net. The problem is that it adds in nicely with the group policy editor and i can see it's Catogary under administrative controls but it doesn't show any controls for user input. What am i doing wrong here? CLASS USER category EmailStationary POLICY "SetEmailStationary" EXPLAIN "This policy sets the value for stationary" KEYNAME "Software\Microsoft\Office\11.0\Common\MailSettings" PART "What is the new stationary to use" EDITTEXT VALUENAME "NewStationery" END PART END POLICY END category

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  • Help to chouse NoSQL database for project

    - by potapuff
    There is a table: doc_id(integer)-value(integer) Approximate 100k doc_id and 27?? rows. Majority query on this table - searching documents similar to current document: select 10 documents with maximum of (count common to current document value)/(count ov values in document). Nowadays we use PostgreSQL. Table weight (with index) ~1,5 GB. Average query time ~0.5s. Should I transfer all this to NoSQL base, if so, what?

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  • Changing DBML, how to change SQL database?

    - by Robbert Dam
    Hi all, A have an app with that uses an SQL database. The application is already released, but now I'm working on an update. In the update I've added an extra column in a table of my database. I've create the database from my DMBL using DataContext.CreateDatabase() (not the other way around, as I found out to be the more common scenario later) I there a facility in LINQ in which I can update my SQL database scheme?

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  • Notification in case of data changes in SQL and Oralce

    - by user171523
    I am in the process of building a system where i need to notify a Window Service a .net based application in case of any change in the DB table (Insert , Update , Delete). I know this can be done with the ADO.NET Events in SQL. Is there any common solution for Oracle and SQL which can provide this kind of notifications. This needs to happen as and when the update happens on real time basis.

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  • How does MySQL's ORDER BY RAND() work?

    - by Eugene
    Hi, I've been doing some research and testing on how to do fast random selection in MySQL. In the process I've faced some unexpected results and now I am not fully sure I know how ORDER BY RAND() really works. I always thought that when you do ORDER BY RAND() on the table, MySQL adds a new column to the table which is filled with random values, then it sorts data by that column and then e.g. you take the above value which got there randomly. I've done lots of googling and testing and finally found that the query Jay offers in his blog is indeed the fastest solution: SELECT * FROM Table T JOIN (SELECT CEIL(MAX(ID)*RAND()) AS ID FROM Table) AS x ON T.ID >= x.ID LIMIT 1; While common ORDER BY RAND() takes 30-40 seconds on my test table, his query does the work in 0.1 seconds. He explains how this functions in the blog so I'll just skip this and finally move to the odd thing. My table is a common table with a PRIMARY KEY id and other non-indexed stuff like username, age, etc. Here's the thing I am struggling to explain SELECT * FROM table ORDER BY RAND() LIMIT 1; /*30-40 seconds*/ SELECT id FROM table ORDER BY RAND() LIMIT 1; /*0.25 seconds*/ SELECT id, username FROM table ORDER BY RAND() LIMIT 1; /*90 seconds*/ I was sort of expecting to see approximately the same time for all three queries since I am always sorting on a single column. But for some reason this didn't happen. Please let me know if you any ideas about this. I have a project where I need to do fast ORDER BY RAND() and personally I would prefer to use SELECT id FROM table ORDER BY RAND() LIMIT 1; SELECT * FROM table WHERE id=ID_FROM_PREVIOUS_QUERY LIMIT 1; which, yes, is slower than Jay's method, however it is smaller and easier to understand. My queries are rather big ones with several JOINs and with WHERE clause and while Jay's method still works, the query grows really big and complex because I need to use all the JOINs and WHERE in the JOINed (called x in his query) sub request. Thanks for your time!

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  • What are the equivalent of the following .NET concepts (ASP.NET, IIS, Linq, etc.) in Java world?

    - by Richard77
    Hello, I'm the only one among my people who navigate in .NET water, the rest is in the Java world. So, I'd like to have some common points to talk with them. What are the equivalent concepts in Java for: (by concept, I mean the purpose of such technology) Visual Studio IIS Linq Development server that ships with VS (I don't know the name) NHibernate, Subsonic, ... ASP.NET WebForm (Is there any equivalent in Java with drag and drop) ASP.NET MVC etc.(Please, add some other concepts if they are important to know) Thanks for helping

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  • Django grappelli

    - by dzen
    Does anyone here use django-grappelli here ? I would like to read some experience of developers or users, if there are common mistake to avoid or why you use or do not use grappelli. Thanks for sharing

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  • How to synchronize HTML5 local/webStorage and server-side storage?

    - by thSoft
    I'm currently seeking solutions for transparently and automatically synchronizing and replicating across the client-side HTML5 localStorage or web storage and (maybe multiple) server-side storage(s) (the only requirement here that it should be simple and affordable to install on a regular hosting service). So do you have any experience with such libraries/technologies that offer data storage which automate the client-server storage synchronization and allow data to be available either offline or online or both? I think this is a fairly common scenario of web applications supporting offline mode...

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  • To instantiate BiMap Of google-collections in Java

    - by Masi
    How can you instantiate a Bimap of Google-collections? I know the thread. A sample of my code import com.google.common.collect.BiMap; public class UserSettings { private Map<String, Integer> wordToWordID; UserSettings() { this.wordToWordID = new BiMap<String. Integer>(); I get cannot instantiate the type BiMap<String, Integer>.

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