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  • Mysql optimization

    - by Jens
    I have this mysql table called comments which looks like this: commentID parentID type userID date comment The commentID is set as Primary key, but most of the time I fetch the data using the parentID. How should I set my indexes? Should I just add an index on parentID and let commentID be the primary key?

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  • WPF: Canvas Events Not working

    - by user279244
    Hi I have set Mouse Events on a canvas as follows MouseUp="CanvasUp" MouseDown="CanvasDown" MouseMove="CanvasMove" But these are active only on the child elements like Images and Rectangles, but not on the empty space. Please tell me how to solve Thanks

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  • Want to check fields for data fast.

    - by Tom
    We have a database setup that consists of two parts: a static structure, and dynamic additions. For each database, the dynamic can be different, and sometimes we don't have data for all the dynamic fields. Rigt now, we check for empties by looking at the total count of records in the entire table, but we want to move to a more refined method of checking for empties if possible. Is it possible to quickly check through several hundred fields and see which ones are empty and which ones are populated?

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  • UPLOAD DATA IN DATA BASE

    - by rajson
    HI friends, i wish to store image and resume of user in the data base. i am using mysql data base and php5. i want to know that which field i set means data type.and how i set the range (maximum size) for uploaded data.

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  • error in script

    - by lego69
    can somebody please help, I'm working with C-Shell, I'm trying to run this script set callsTo = "`cut -d" " -f2 ${1}`" echo $callsTo cut receives data from the file which is the first parameter > ./myscript data I need only second field from every row -f2 after that I want to check if the data was stored, but I receive or an error unmatched `. or empty row, what is wrong with my script, thanks in advance for any help

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  • Where can I write a temp file from ASP.NET?

    - by ProfK
    I have an 'access denied' problem on an ASP.NET web application, where the user uploads an Excel file and I try and write it to a folder. I don't have access to the host except FTP, so I can't set permissions. I thought that ASP.NET would be able to write to a folder that is under the web app root, but it isn't so. Is there anywhere I can write the file to that doesn't require me to set permissions?

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  • Assign query results to MySQL variable

    - by 5un5
    I'm querying a big mysql database with only read privileges, and I'd like to set some slow query results to a variable, 'foo', so I can use them again in other queries. I get, ERROR 1193 (HY000): Unknown system variable '$foo' when I enter: set $foo := (select * from table1 join table2 where bar = 0 group by id); Is there a way to do this with variables, since I don't have privileges to create temporary tables?

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  • How to route 1 VPN through another on OS X?

    - by Eeep
    Hi everyone. Thanks a lot for your help! I've been tinkering with this for a while and have read many posts along with Googling for help, but my knowledge of TCP/IP is really weak... I have access to two different VPN servers. 1 Is set up in Network Settings and connects through PPP 2 Is set up through Tunnelblick and uses OpenVPN. I can connect to either tunnel #1 or tunnel #2, but not both one after the other... One of my major to-do's this year is study TCP/IP, but for now, would you be super-helpful and help me fix this really clearly? I have no experience with routing, DNS, gateways or any of that. If you tell me, "Set your gateway to XXX.XXX.XX.XXX" can you specify how I get that IP, off of what interface so I don't get messed up? I can figure out the terminal just fine if you let me know what to type, and I WILL read the man pages on everything you help me with. Thanks a million!

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  • Error in create back up in mysql through java program

    - by Arivu2020
    Runtime.getRuntime().exec("C:\mysql\bin\mysqldump -u root -pmypassword Databasename -r C:/backup.sql"); I am using this code to create back up from my sql. but It creates the empty file in the path.Because it is waiting in the command prompt to get the password. How can i give password to it Using command prompt directly when i press enter after typing, it asks password.After giving password,It creates the backup.Give me any solution for this Thanks in advance

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  • php: parsing and converting array structure

    - by mwb
    I need to convert one array structure into another array structure. I hope someone will find it worthy their time to show how this could be done in a simple manner. It's a little above my array manipulation skills. The structure we start out with looks like this: $cssoptions = array( array( 'group' => 'Measurements' , 'selector' => '#content' , 'rule' => 'width' , 'value' => '200px' ) // end data set , array( 'group' => 'Measurements' , 'selector' => '#content' , 'rule' => 'margin-right' , 'value' => '20px' ) // end data set , array( 'group' => 'Colors' , 'selector' => '#content' , 'rule' => 'color' , 'value' => '#444' ) // end data set , array( 'group' => 'Measurements' , 'selector' => '.sidebar' , 'rule' => 'margin-top' , 'value' => '10px' ) // end data set ); // END $cssoptions It's a collection of discreet datasets, each consisting of an array that holds two key = value pairs describing a 'css-rule' and a 'css-rule-value'. Further, each dataset holds a key = value pair describing the 'css-selector-group' that the 'css-rule' should blong to, and a key = value pair describing a 'rule-group' that should be used for structuring the rendering of the final css into a neat css code block arranged by the kind of properties they describe (colors, measurement, typography etc..) Now, I need to parse that, and turn it into a new structure, where the: 'rule' => 'rule-name' , 'value' => 'value-string' for each dataset is converted into: 'rule-name' => 'value-string' ..and then placed into a new array structure where all 'rule-name' = 'value-string' pairs should be aggregated under the respective 'selector-values' Like this: '#content' => array( 'width' => '200px' , 'margin-right' => '20px' ) // end selecor block ..and finally all those blocks should be grouped under their respective 'style-groups', creating a final resulting array structure like this: $css => array( 'Measurements' => array( '#content' => array( 'width' => '200px' , 'margin-right' => '20px' ) // end selecor block , '.sidebar' => array( 'margin-top' => '10px' ) // end selector block ) // end rule group , 'Colors' => array( '#content' => array( 'color' => '#444' ) // end selector block ) // end rule group ); // end css

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  • Reloading an object not working in rspec

    - by Eric Baldwin
    I am trying to test a controller method with the following code: it "should set an approved_at date and email the campaign's client" do @campaign = Campaign.create(valid_attributes) post :approve, id: @campaign.id.to_s @campaign.reload @campaign.approved_at.should_not be(nil) end However, when I run this test, I get the following error: Failure/Error: @campaign.reload ActiveRecord::RecordNotFound: Couldn't find Campaign without an ID When I run the analagous lines in the rails console, the reload works and the value is set as I need it to be. Why isn't reload working for me when I run the code in an rspec test?

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  • how to fit div into the corner

    - by user650749
    I have a div whose height span 2 rows. But I want to the following div fit into the bottom left and bottom right corner: http://jsfiddle.net/netnet/NNH6V/ before browse, please drag the splitter to left and you will see the checkbox2 and "2222222222" could be fit into bottom left and bottom right perfectly. I can use the relative position(.VerticalUp class). But the problem is it will leave a empty row underneath, which I don't want. Any idea?

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  • Checking if folder has files

    - by phenevo
    Hi, I have program which writes to database which folders are full or empty. Now I'm using bool hasFiles=false; (Directory.GetFiles(path).Length 0) ? hasFiles=true: hasFiles=false; but it takes almost one hour, and I can't do anything in this time. Is there any fastest way to check if folder has any file ?

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  • Routing optional parameters with dashes in MVC

    - by Géza
    I've made an routing definition like this: routes.MapRoute("ProductSearch", "Search-{MainGroup}-{SubGroup}-{ItemType}", new { controller = "Product", action = "Search", MainGroup = "", SubGroup = "", ItemWebType = ""}); It is not working if the parameters are empty. Actually it resolves the url, so Url.Action method resolves the path "Search-12--" but the link is not working, so the GET of the page is not working With slashes it is working the Url.Action method makes "Search/12" "Search/{MainGroup}/{SubGroup}/{ItemType}" is it somehow possible to correct it?

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  • python FancyURLopener timeout

    - by j3nc3k
    Hi, is there a way to set connection timeout for FancyURLopener()? I'm using FancyURLopener.retrieve() to download a file, but sometimes it just stucks and that's all... I think this is because it's still trying to connect and it's not possible. So is there a way to set that timeout? Thanks for every reply

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  • Can I use php's fwrite with 644 file permissions?

    - by filip
    I am trying to set up automated .htaccess updating. This clearly needs to be as secure as possible, however right now the best I can do file permission-wise is 666. What can I do to setup either my server or php code so that my script's fwrite() command will work with 644 or better? For instance is there a way to set my script(s) to run as owner?

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  • IOS-Fixed content in UIScrollview

    - by heaven
    I have a problem with UIScrollView and UILabel. I'm adding UILabel using addSubview inside UIScrollView, one UILabel on the top set Width: 3000 - height: 20; other UILabel on the left: set height: 1000 - width: 50; In the middle UISCrollView is here I wanna When scroll horizontal the UILabel on the top move to left or right (doesn't move to up or down) When scroll vertical the UILabel on the left move to up or down (doesn't move right or left)

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  • Can I push my working directory without first committing it?

    - by Derek
    I have my web server set up as a remote git repo, so I can type "git push staging" and my last commit goes live on the server. I used this tutorial to set this up. A lot of the time, I'm testing a new feature, and I want to test several iterations of it on the staging server, before it's ready to quality as a commit. Is there a way to push my working directory to the server without having to commit it first?

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  • buttons in a datagrid in flex

    - by markblue777
    Hi All, i am using a data grid in flex and i am generating data from a mysql server. However, my problem is with adding a button within the datagrid so each row has one. i have set the columns itemRenderer to mx.controls.Button although with the buttons shown in the grid there is no label on them (even though one has been set) and the assigned click event does not trigger when hitting the button. anyone have any ideas or guidance on what i am doing wrong. Thanks Mark

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  • C# stop property change at runtime

    - by petebob796
    I have been trying to build a user control with some custom properties set in the designer. However the control involves some interop code and settings which shouldn't be adjusted at runtime. Is there a way to stop the values being changed after they have been initially set by the designer code?

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