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  • linq subquery child collection to string

    - by bill
    Hi All, i am trying to figure out how to write a linq query that will return a child collections "name" property as a string. I have a BO that has a "options" property where the options are the "name" property of each option in an "order" object. I would like the result to look something like order.id = 12312 order.date = 12/03/10 order.options = "Option 1 Name, Option 2 Name, Option 3 Name" I hope this makes sense. thanks for any and all help!

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  • Database design -- does it respect 3rd NF?

    - by Flavius
    Hi I have the following relations (tables) in a relational model Person person_id, first_name, last_name, address Student person_id, matr_nr Teacher person_id, salary Lecture lecture_id, lect_name, lect_description Attendees lecture_id, person_id, date I'm wondering about the functional dependencies of Student and Teacher. Do these tables respect the 3rd normal form? Which should be the primary keys of these tables?

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  • Generating SQL for website

    - by Ethan
    I am working on a webapplication How can i create SQL for the following Database Information User information Username - String Password - String Admin or Client - boolean Last login – Date/Time LogItem typeLogItem – String (Page name?) hitCount – int View PageURL UserID Transaction User – String DateTimeStamp SKU – int Purchase-boolean TransactionID-int Inventory information Sku number - int Item description - String Price to customer - double Count - in

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  • How can you remove a Criterion from a criteria?

    - by ChuckM
    Hello, For instance if I do something like: Criteria c = session.createCriteria(Book.class) .add(Expression.ge("release",reDate); .add(Expression.ge("price",price); .addOrder( Order.asc("date") ) .setFirstResult(0) .setMaxResults(10); c.list(); How can I use the same criteria instance, but remove (for example) the second criterion? I'm trying to build a dynamic query in which I'd like to let the user remove a filter, without the backend having to reconstruct the criteria from scratch. Thank you

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  • I want increase the scrolling performance in my table view with images in iphone?

    - by Warrior
    I am new to iphone development.I am parsing a xml and display the title,date,contents and image in the cell,Now the scrolling is not smooth, it struck.How can i increase it.I have already applied lazy loading in another view, i am not able to apply in the new view.So how can i increase the scrolling performance.Can i check for any condition that if image is already loaded in the image view,if so i can stop once again the loading of image view. Please help me out.Thanks.

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  • DirectX capabilities on different graphics cards

    - by user9876
    I'm writing a Direct3D application, using DirectX 9. Although it works on my PC, I need to make it work on a wide range of systems. I need to know what capabilities I can expect to see on other systems. Is there a list of the DirectX capabilities that graphics cards support? I've found one site, which I'll post as an answer, but it's a bit out of date.

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  • DateTime Formatting in repeater

    - by Krishna
    Hi, I am trying to format the date time (yyyy/MM/dd) in a repeater which is binded to an ObjectDataSource as shown (THIS WORKS) <%# ((MyType)Container.DataItem).CreateDateTime.ToString("yyyy/MM/dd")% (THIS DOES`NT WORKS) <%# String.Format("{0:yyyy/MM/dd}",((MyType)Container.DataItem).UpdateDateTime)% I want to have both things working because sometimes the property UpdateDateTime is null, in such cases the second line of code handles smart. Thank you for the help in advance.

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  • get metadata from jpg, dng and arw raw files

    - by Daniel
    I was wondering if anyone new how to get access the metadata (the date in particular) from jpg, arw and dng files. I've recently lost the folder structure after a merge operation gone-bad and would like to rename the recovered files according to the metadata. I'm planning on creating a little C++ app to dig into each file and get the metadata. any input is appreciated. ( alternatively, if you know of an app that already does this I'd like to know :)

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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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  • how to store hour and minute in database table while using mktime() function?

    - by Learner Miz
    I am using a form to get the hour and minute using post method and then store it to mysql DB. Such as : $hour = $_POST['hour']; $minute = $_POST['minute']; ** There is no need of date, month and year. I just need to store the hour and minute in a column of a table (ex: exam_time) Column structure: exam_time time NOT NULL Now how to store these value into database using mktime() function. I tried but it stores 00:00:00, not the one which I am sending via form.

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  • Problem with SQL query

    - by William
    Here's the query INSERT INTO test_bans( ip, Expiration ) VALUES ( "0.0.0.0", DateAdd( "d", 1, Date( ) ) ) Here's the table creation query CREATE TABLE test_bans ( ID smallint(6) NOT NULL AUTO_INCREMENT, IP text NOT NULL, Expiration DATETIME NOT NULL, PRIMARY KEY (ID) ) TYPE=MyISAM; And here's the error #1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ')))' at line 1 Please help.

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  • Track user with log4net for a website

    - by Xstahef
    Hi, I am searching for the best way for track user on a web site based on asp.net. We are using log4net to log some business actions (enter on this page, click on button, etc.). But for multiple users, log file cannot be read easily. So I need add a property 'UserName' on the config file like this : <conversionPattern value="%date [%thread] - %property{UserName} - %-5level - %logger - %message%newline"/> Do you hae any idea about the way to set 'UserName' ? thanks for your help

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  • Writing a script with the cmd prompt.

    - by Josh
    I'm trying to make a script that will place a list (in a .csv file) of processes that are running that take up more than 10 mb of RAM and shows the time + date the script was run. My teacher did this during his lecture but I can't remember how he did it. Just trying to figure out how to be better at IT. So my question is, can anyone help me with this? I don't even know where to start.

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  • SQL commands generated in Django by running sqlall

    - by k-g-f
    In my Django app, I just ran $ python manage.py sqlall and I see a lot of SQL statements that look like this, when describing FK relationships: ALTER TABLE `app1_model1` ADD CONSTRAINT model2_id_refs_id_728de91f FOREIGN KEY (`model2_id`) REFERENCES `app1_model2` (`id`); Where does "7218de91f" come from? I would like to know because I'd like to manually write SQL statements to accompany models changes in the app so that my db's can be kept up to date.

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