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  • Instantiate defined object with Linq Query

    - by Heinz
    I know that you can instantiate anonymous types with Linq but I am looking to instantiate an object I have already defined. Every time I do, all the properties are returned with their defaults (null, 0, etc.) Is there a way to make this work? I've tried something like this: ServiceDepartment[] serviceDepartments = (from d in departments orderby d.department_name select new ServiceDepartment { DepartmentID = d.department_id, DepartmentName = d.department_name }).ToArray();

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  • Problems and solution for Developing a connected web and desktop application?

    - by Taz
    hi, I am trying to develop a web application(Using ASP.NET and c#) that uses a specific database hosted on web server. I will have another desktop application that will use a local database. Both databases have same structure and data at start up. Then databases will change when users add data to web application and an employee adds data to the desktop application. After a while I have to sync both databases. What will be best way to do this? Is there any opensource example/ starter kit to start with? Thanks.

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  • SQL Query Update is not working

    - by Brett Powell
    Hey guys, I am using pawn script for something, and everything works great except for one of my queries. For some reason, it will not work, and I am hoping it is simple enough someone can spot my mistake as I have been banging my head on it for days. http://ampaste.net/m6a887d30 The two highlighted lines are the queries that are not working. The other one works fine, but the values for 'class1kills' and 'class2kills' remain at 0. Here is a screenshot from phpmyadmin incase I did something silly. http://brutalservers.net/sql.png

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  • Base64 Encoded Data - DB or Filesystem

    - by Marty
    I have a new program that will be generating a lot of Base64 encoded audio and image data. This data will be served via HTTP in the form of XML and the Base64 data will be inline. These files will most likely break 20MB and higher. Would it be more efficient to serve these files directly from the filesystem or would it be feasible to store the data in a MySQL database? Caching will be set up but overall unnecessary because it is likely that this data will be purged shortly after it is created and served. i know that storing binary data in the DB is frowned upon in most circumstances but since this will all be character data I want to see what the consensus is. As of now, I am leaning toward storing them in the filesystem for efficiency reasons but if it is feasible to store them in a database it would be much easier to manage the data.

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  • Working with Database using LINQ to XML

    - by M.H
    Hi,I am Working on a project (C#) in the university and they said that we can't use a DBMS like SQL Server so we decide to use Linq and XML...we learned some basics in Linq to Xml But really we don't know how we can create tables and fields and work with them in Xml.any suggestions ?

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  • Query to look up comment in one table, username in another table

    - by John
    Hello, I am using a MySQL table called "login" with the following structure: loginid, username, password, email, actcode, disabled, activated, created, points I am using another MySQL table called "comment" with the following structure: commentid, loginid, submissionid, comment, datecommented For a given "submisssionid", I would like to print out the following information from the table "comment": -The fields "comment" and "datecommented". At the same time, I would like to print out the following from the table "login": -The "username" that corresponds to the "loginid" for each row being row being selected from the table "comment". How can I do this? I tried the code below but it did not work. Thanks in advance, John $submission = mysql_real_escape_string($_GET['submission']); $submissionid = mysql_real_escape_string($_GET['submissionid']); $sqlStr = "SELECT c.loginid ,c.submissionid ,c.comment ,c.datecommented ,l.username ,COUNT(c.commentid) countComments FROM comment c WHERE c.submissionid = $submissionid INNER JOIN login l ON c.loginid = l.loginid GROUP BY c.submissionid ORDER BY c.datecommented DESC LIMIT 100"; $result = mysql_query($sqlStr); $arr = array(); echo "<table class=\"samplesrec\">"; while ($row = mysql_fetch_array($result)) { echo '<tr>'; echo '<td class="sitename1">'.$row["comment"].'</td>'; echo '</tr>'; echo '<tr>'; echo '<td class="sitename2"><a href="http://www...com/sandbox/members/index.php?profile='.$row["username"].'">'.$row["username"].'</a>'.$row["datecommented"].'</td>'; echo '</tr>'; } echo "</table>";

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  • Can this django query be improved?

    - by Hobhouse
    Given a model structure like this: class Book(models.Model): user = models.ForeignKey(User) class Readingdate(models.Model): book = models.ForeignKey(Book) date = models.DateField() One book may have several readingdates. How do I list books having at least one readingdate within a specific year? I can do this: from_date = datetime.date(2010,1,1) to_date = datetime.date(2010,12,31) book_ids = Readingdate.objects\ .filter(date__range=(from_date,to_date))\ .values_list('book_id', flat=True) books_read_2010 = Book.objects.filter(id__in=book_ids) Is it possible to do this with one queryset, or is this the best way?

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  • Where does Subversion physically stores its DataBase ?

    - by Mika Jacobi
    After reading many introductions, starting guides, and documentation on SVN, I still cannot figure out where is my versioning data stored. I mean physically. I have over 3 GB of code checked in, and the repo is just a few MB large. This is still Voodoo for me. And, as a coder, I don't really believe in Magic. EDIT : A contributor stated that not all the code was stored in the repo, is that true ? I mean, if I delete my local working copy I still can get back my source code for the repository... If so, I still can't understand how such a compression can occur on my code...

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  • Making a relevant search of text in database using regex

    - by madphp
    Can anyone tell me how I could count the possible instances of a keyword in a block of text? I've split a search term up into separate tokens, so just need to run through and do a count for every instance and removing punctuation or other special characters when making the count. Secondly, if someone has inserted search terms surrounded by double quotes, i want to be able to skip explode, but just count instances of that exact phrase. It doesn't have to be case sensitive and I would like to remove punctuation from the phrase when doing the count. Thirdly, in both cases i want to be able to ignore wordpress and html tags. Lastly, if anyone know any good tutorials for relevant searches that answer the questions above, that would cool too. I've got this far. $results = $wpdb->get_results($sql); $tokens = explode('search_terms'); // Re-arrange Relevant Results foreach ($results As $forum_topic){ foreach($tokens As $token){ // count tokens in topic_title if ($token ){ } } }

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  • Check if Database raises a particular exception

    - by mcabral
    using Nhibernate; I'm trying to insert several values a on table which has an unique index on some columns. I'd like to know if a particular insert raises an exception for having violated the unique constraint. So, which particular exception type should i catch? I only want to catch this particular one and let all others go up. Thanks a lot!

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  • Help understand difference in sql query

    - by Anil Namde
    Select user_name [User Name], first_name [First Name], last_name [Last Name] Form tab_user ORDER BY user_name Select user_name [User Name], first_name [First Name], last_name [Last Name] Form tab_user ORDER BY User Name Above are the two queries, Is there any difference because of the user_name used instead of User Name Is there something that should be taken care/worried when using something like this.

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  • combine lines from 2 prints to single line and insert into mysql database

    - by bleomycin
    Hello everyone i currently have this: import feedparser d = feedparser.parse('http://store.steampowered.com/feeds/news.xml') for i in range(10): print d.entries[i].title print d.entries[i].date How would i go about making it so that the title and date are on the same line? Also it doesn't need to print i just have that in there for testing, i would like to dump this output into a mysql db with the title and date, any help is greatly appreciated!

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  • Postgres vs Firebird

    - by Tedi
    I'm looking to use either Firebird or Postgres in my next development project ... largely because both are available under a BSD-like license. I found a great comparison of the two database at http://www.amsoftwaredesign.com/pg_vs_fb But this comparison is a good 2+ years old and both databases have come a long ways since. Does anyone mind updating the comparison table to be relevant for the current versions of both Firebird and Postgres ... or have a link to a site that does a good recent comparison between the two database?

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  • Sql server 2008 query

    - by Prashant
    I am trying to implement versioning of data I have two tables Client and Address. I have to display in the UI, the various updates in the order in which they were made but with the correct client version so, Client Table Address Table ---------- ---------- Client Version Modified Date Address Version ModifiedDate CV1 T1 AV1 T2 CV2 T4 AV2 T3 CV3 T5 My result should be CV1 AV1 (first version) CV1 AV2 (as AV1 was updated at T3) CV2 AV2 (as Client got updated to CV2 at T4) CV3 AV2 (As client has got updated at T5)

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  • How big teams work with database

    - by Michael Riva
    Lets say I have a team, 20 developers. And we are making a project on .net. In team every one can easy create their tables according to their modules working on it. And we think to use an ORM, can you tell me how can and which ORM tools for good to working with team. Is there any proven way? I m asking becouse I never work with a team, so I dont know the best practices. So you guys what kind of pattern you use?. I realy wonder. The team members can write their unit tests and supply necessary design patterns. What kind of approach I need to create to manage team? What kind of ORM tools that we have to use?

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  • SharePoint replicating document between site according to external database on a regular basis

    - by kevin
    I want to copy a file from Site A to Site B according to external DB status on a timer job. e.g I have documents in Site A. I want to move those documents to Site B when the document' status in external MSSQL DB is "approved". I want to do it in a timer job. Which way will be great to do so ? I don't know how to use timer job and BDC job together. Please advice me. Thanks in advance. BTW, I don't know much about SharePoint.

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  • Linq to SQL - Returning two values with one query

    - by Sir Psycho
    Hi, Is it possible to return a single value and an enumerable collection using LINQ to SQL? The problem is, I'm trying to do paging across a large recordset. I only want to return 10 rows at a time so I'm using .Skip(20).Take(10) approach. However I need to know the total number of records so I can show an appropriate page x of y. Trying to avoid two separate queries. Thanks

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  • Why use hashing to create pathnames for large collections of files?

    - by Stephen
    Hi, I noticed a number of cases where an application or database stored collections of files/blobs using a has to determine the path and filename. I believe the intended outcome is a situation where the path never gets too deep, or the folders ever get too full - too many files (or folders) in a folder making for slower access. EDIT: Examples are often Digital libraries or repositories, though the simplest example I can think of (that can be installed in about 30s) is the Zotero document/citation database. Why do this? EDIT: thanks Mat for the answer - does this technique of using a hash to create a file path have a name? Is it a pattern? I'd like to read more, but have failed to find anything in the ACM Digital Library

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  • Database connection via Hibernate in servlets

    - by blackliteon
    What is the best place in servlet for Hibernate code that returns HibernateSessionFactory ? I saw many examples: ones put db connection in service methods. Others - use smth like HibernateUtil (Singleton) that returns HibernateSessionFactory. I don't know is it safe to use HibernateUtil in multithreaded Servlets ?

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  • import csv file/excel into sql database asp.net

    - by kiev
    Hi everyone! I am starting a project with asp.net visual studio 2008 / SQL 2000 (2005 in future) using c#. The tricky part for me is that the existing DB schema changes often and the import files columns will all have to me matched up with the existing db schema since they may not be one to one match on column names. (There is a lookup table that provides the tables schema with column names I will use) I am exploring different ways to approach this, and need some expert advice. Is there any existing controls or frameworks that I can leverage to do any of this? So far I explored FileUpload .NET control, as well as some 3rd party upload controls to accomplish the upload such as SlickUpload but the files uploaded should be < 500mb Next part is reading of my csv /excel and parsing it for display to the user so they can match it with our db schema. I saw CSVReader and others but for excel its more difficult since I will need to support different versions. Essentially The user performing this import will insert and/or update several tables from this import file. There are other more advance requirements like record matching but and preview of the import records, but I wish to get through understanding how to do this first. Update: I ended up using csvReader with LumenWorks.Framework for uploading the csv files.

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  • cannot enter text in query popup input field

    - by raja
    i am unable to enter text in jquery popup text field...... i am using following plugins my html code </head> <body onmousedown="return false;"> <div id="container"></div> <div id="divMenu"></div> </body> </html> i am appending popup tags as function setupCalibration(){ $('#container').append(' <div data-role="popup" id="calibratePopup" data-transition="flip" data-theme="e" data-overlay-theme="a" class="ui-content" style=" width:300px;height: 200px; z-index:1; display:none;"><label for="name">Text Input:</label><input type="text" name="name" id="name" value="" /></div>'); } and this is how i am invoking popup on click of divmenu button document.getElementById('divMenu').addEventListener('click', function() { $( '#calibratePopup' ).popup({display:block}); $( '#calibratePopup' ).show(); $( '#calibratePopup' ).popup( "open"); }, false); i am able to show popup,but input field is not responding

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