Search Results

Search found 24117 results on 965 pages for 'write through'.

Page 395/965 | < Previous Page | 391 392 393 394 395 396 397 398 399 400 401 402  | Next Page >

• question about group by

  - by chun

  Hi in mysql how to write a sql like this, to get the amount of X 20 and <20 select date, numberOfXMoreThan20,numberOfXLessThan20, otherValues from table group by (date, X20 and X<20) thanks

  Read the article

• how to get network connection list in my computer with .NET?

  - by jozi

  how to get network connection list in my computer with c# vpn list or other in windows 7 this path Control Panel\Network and Internet\Network Connections i need for write a function to connect to internet in c#

  Read the article

• writing to an ioport resulting in segfaults...

  - by Sniperchild

  I'm writing for an atmel at91sam9260 arm 9 cored single board computer [glomation gesbc9260] Using request_mem_region(0xFFFFFC00,0x100,"name"); //port range runs from fc00 to fcff that works fine and shows up in /proc/iomem then i try to write to the last bit of the port at fc20 with writel(0x1, 0xFFFFFC20); and i segfault...specifically "unable to handle kernel paging request at virtual address fffffc20. I'm of the mind that i'm not allocating the right memory space... any helpful insight would be great...

  Read the article

• How do I update a cumulative field in a Rails database (using ActiveRecord or Mongoid)?

  - by picardo

  I want to update a field in a database table that has to have a cumulative value. So basically I need to find the current value of the field and update it using a new number. My first inefficient try at this (in Mongoid) is: v = Landlord.where(:name=>"Lorem") v.update_attributes(:violations=>v.violations + 10) Is there a simple method than making one query to read, then sum up, and another query to write?

  Read the article

• How many colunms in table to keep? - MySQL

  - by Dennis

  I am stuck between row vs colunms table design for storing some items but the decision is which table is easier to manage and if colunms then how many colunms are best to have? For example I have object meta data, ideally there are 45 pieces of information (after being normalized) on the same level that i need to store per object. So is 45 colunms in a heavry read/write table good? Can it work flawless in a real world situation of heavy concurrent read/writes?

  Read the article

• setup apache virtualhost (windows)

  - by nightingale2k1

  Hi, How to setup virtualhost for multiple domain name on windows ? I will use it for my own test projects. I have 3 projects that I need to setup and at the moment I'm using xampplite for the portable apache. www.foo-bar.com -- direct to c:\xampplite\htdocs\foo-bar\ www.abcdef.com -- directo to c:\xampplite\htdocs\abcdef\ www.qwerty.com -- direct to c:\xampplite\htdocs\qwerty\web\ I also need to access on another project but it just like typing http://localhost/my-project/ how to write the vhost configuration for that ?

  Read the article

• how to detect javascript features on Android 1.5

  - by Sirber

  I'm trying to write a code that can run on Android 1.5 and 2.0.1, but I have issues with the javascript engine used on Android 1.5. alert(localStorage); just hang on v1.5 while on v2.0.1 it alerts correctly. is there an unblocking way to do it or to detect the version of Android with javascript?

  Read the article

• Monochrome BitMap Library

  - by Asad Jibran Ahmed

  I am trying to create a piece of software that can be used to create VERY large (10000x10000) sized bitmaps. All I need is something that can work in monochrome, since the required output is a matrix containing details of black and white pixels in the bitmap. The closest thing I can think of is a font editor, but the size is a problem. Is there any library out there that I can use to create the software, or will I have to write the whole thing from the start?

  Read the article

• Batch file script for attrib

  - by Deven

  I want to create a batch file for run attrib script for pen drive. But problem is pen drive changes. batch file that 1st ask to write drive letter Then run attrib script for that drive. (my pendrive gets virus from class that i want to clear at home by aplying attrib script below everyday attrib -r -a -s -h /s /d

  Read the article

• C# and WCF + Getting the location of execution

  - by user208662

  Hello, I have a WCF service that is responsible for writing a log file. I would like to write a log file relative to the location of my WCF service. This service does NOT have an HttpContext available. Because of this, I cannot use HttpContext.Current.Server.MapPath. How can I get the location of where my WCF service is running so that I can create a log file? Thank you

  Read the article

• [C++] Real time plotting/data logging

  - by Paul

  I'm going to write a program that plots data from a sensor connected to the computer. The sensor value is going to be plotted as a function of the time (sensor value on the y-axis, time on the x-axis). I want to be able to add new values to the plot in real time. What would be best to do this with in C++? Edit: And by the way, the program will be running on a Linux machine

  Read the article

• How do I test how customers use my Cocoa application?

  - by John Gallagher

  I'm interested in finding out how customers use features in my Cocoa application. I want to build up statistics on which features people use and how they use them, so that I can measure the value of features I'm implementing. This feedback of course will be off by default and anonymous. Does anyone know of any frameworks that have been developed that can achieve this without me having to write stuff from scratch?

  Read the article

• Delete System Files containing string

  - by Fuzz Evans

  I am trying to write a batch file that will examine a given directory, read each file for a given string "Example" and then delete any files that contain the string. The files are also System Files so I don't know what the exact extension is or if that matters (maybe you can just omit a file type filter and have it read all files?). Some of the files will be locked from reading as well so it needs to handle access denial errors if that occurs, not sure how batch files handle that.

  Read the article

• How can I use linq to initialize an array of repeated elements?

  - by Eric

  At present, I'm using something like this to build a list of 10 objects: myList = (from _ in Enumerable.Range(0, 9) select new MyObject {...}).toList() This is based off my python background, where I'd write: myList = [MyObject(...) for _ in range(10)] Note that I want my list to contain 10 instances of my object, not the same instance 10 times. Is this still a sensible way to do things in C#? Is there a cost to doing it this way over a simple for loop?

  Read the article

• What are the best (powerful yet easy) languages to implement text/data processing and code genegatio

  - by Ivan

  If I want to write my engine which will generate all the code solving the task described in simple declarative style, what languages should I look at?

  Read the article

• Resources for writing kernel in C

  - by anon

  I don't want to write my own boot loader -- happy to use Grub. I just want to implement pre-emptive multi threading, a basic file system, and virtual memory. I want something that can run on top of qemu. What's a good resource (book / tutorial) for accomplishing this goal? Thanks!

  Read the article

• Annotations present at compile time but absent at runtime

  - by deamon

  It is possible to use Java class files which includes annotations that are not present at runtime? Example: I want to write a class with the JPA @Embeddable annotation, which would be present at compile time (maven scope: "provided"). But the annoatation definition could be absent at runtime, if the class is used outside a JPA application.

  Read the article

• ASP.net looping through controls in a table

  - by c11ada

  hey all, i have a table which contains a bunch of dynamically created radio button lists, im trying to write code which will loop through each one of the radio button list and get the text value of the selected item. i have the following code foreach ( Control ctrl in Table1.Controls) { if (ctrl is RadioButtonList) { //get the text value of the selected radio button } } but i am stuck on how i can get the value of the selected item for that given control.

  Read the article

• PHP show image if post result equals

  - by user342391

  I have a form that posts to a page. I want to display an image if the value of the item posted equals "paypal". I need to write something that says; if $_POST['method'] equals "paypal" then show paypal.gif if $_POST['method'] equals "mastercard" then show mastercard.gif I hope I made a bit of sense, new to php trying to learn the best I can

  Read the article

• List comprehension for series of deltas

  - by Yuval A

  How would you write a list comprehension in python to generate a series of n-1 deltas between n items in an ordered list? Example: L = [5,9,2,1,7] RES = [5-9,9-2,2-1,1-7] = [4,7,1,6] # absolute values

  Read the article

• rand (0,9) in php?

  - by aamir Fayyaz

  i am using rand function, but a problem is, when new value print old valu not remove, means new value over write on old value?

  Read the article

• Simple wave generator with SDL in c++

  - by Vlad Popescu

  i am having problems understanding how the audio part of the sdl library works now, i know that when you initialize it, you have to specify the frequency and a callback<< function, which i think is then called automatically at the given frequency. can anyone who worked with the sdl library write a simple example that would use sdl_audio to generate a 440 hz square wave (since it is the simplest waveform) at a sampling frequency of 44000 hz? thanks in advance

  Read the article

• Linq to Sql statement for multiple aggregate values in single expression

  - by Jeff Langston

  How would I write a linq to sql statement for the following tsql? select count(*), sum(Amount), avg(Amount), min(Amount), max(Amount) from TableName

  Read the article

• Linq to Entity Dynamic where clause

  - by GodSmart

  I have Linq to Entity query like you can see below I am using it five times in my code, everything that change is where clause. is it possible to create a method and pass just where values, not to write all code five times. Thank you items = from t1 in _entities.table1 join t2 in _entities.Table2 on t1.column1 equals t2.column1 join t3 in _entities.Table3 on t1.column2 equals t3.column2 join t4 in _entities.Table4 on t1.column3 equals t4.column3 where **t1.column5 == Something** select new { t1.column7, t2.column8, t3.column9, t4.column10 };

  Read the article

• What is the Microsoft Query Syntax for Subqueries?

  - by Kuyenda

  I am trying to do a simple subquery join in Microsoft Query, but I cannot figure out the syntax. I also cannot find any documentation for the syntax. How would I write the following query in Microsoft Query? SELECT * FROM ( SELECT Col1, Col2 FROM `C:\Book1.xlsx`.`Sheet1$` ) AS a JOIN ( SELECT Col1, Col3 FROM `C:\Book1.xlsx`.`Sheet1$` ) AS b ON a.Col1 = b.Col1 Is there official documentation for Microsoft Query? Thanks!

  Read the article

< Previous Page | 391 392 393 394 395 396 397 398 399 400 401 402  | Next Page >