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  • Unable to view data in notepad.

    - by Saran
    I have a java code that reads an excel file and writes it to a text file. When i get the output text file, I can see only symbols like this in the notepad. "????????????????????????????" But if i open the text file in wordpad or ms-word, the data is correctly displayed. What could be the error?

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  • What are some alternatives to word processing with Markdown?

    - by Hassan
    I've used MS Word-style editors for a long time, but I never got used to how unintuitive and cumbersome they are. I'm not talking specifically about MS Word, but also other editors that seem to mimic Word, like OpenOffice, NeoOffice, etc. I've found myself preferring to write in Markdown (much like on this site). I've found a few good Markdown editors, and I like using them a lot more than using Word-style editors. Here is what they generally look like: As you can see, it works much differently than a Word-style editor. This is a generally cleaner way of writing, since formatting is done right in the text, and is extremely simple to use (no highlighting some text, then clicking a button in some menu you have to find). Although editing text this way is great, I've realized that the syntax can only be used for very specific needs (bullets, numbered lists, headings and sub-headings, bold, italic, and some other common ones). However, many features are missing. Here are some features that would be nice in a word processor: Tables. Indenting paragraphs. Good image support (you can link to images, but not add them, since Markdown is just text). More simple to use than Word and its cronies. Cross-platform. Some of these can be fixed with in-line HTML, but nobody wants to do that. It seems Markdown was designed for editing text on the internet. Is there a similar setup that works better for desktop word processors?

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  • Wrap text around an image in rails and prawn

    - by stevenheidel
    I have a document with dynamic image and dynamic text and would like the text around the image. The image is right aligned on the landscape page. Here is what I have so far: pdf.bounding_box([0,pdf.bounds.top - 50], :width => pdf.bounds.width, :height => pdf.bounds.height-50) do pdf.text @article.title, :size => 30, :style => :bold pdf.text @article.content, :align => :left # image pdf.bounding_box([pdf.bounds.right - 250, pdf.bounds.top], :width => 250, :height => 250) do pdf.image image_path, :width => 250 end end The text goes right underneath the image. I tried doing this http://stackoverflow.com/questions/2085151/ruby-prawn-how-to-wrap-text-around-an-aligned-right-image but it didn't work. Help is appreciated, thanks.

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  • Concatenating text in an ASP.NET localized label

    - by James B
    Trying to localize text in ASP.NET labels... want to add a ':' after the localized text. I could just add the ':' to the localized text in the resource file, but that seems silly... there should be an easy way to do this. <asp:Label id="RoleTypeLabel" runat="server" Text='<%$ Resources: GS3, RoleTypeLabel %>:' AssociatedControlID="RoleTypeDropDown"></asp:Label> (note the ':' at the end of Text='...') Of course, this doesn't work... and neither does anything I can think of to concatenate a ':' onto the end of the localized text. Anyone know how to do it? TIA, James

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  • SQL Azure maximum database size rises from 10GB to 50GB in June

    - by Eric Nelson
    At Mix we announced that we will be offering a new 50gb size option in June. If you would like to become an early adopter of this new size option before generally available, send an email to [email protected]  and it will auto-reply with instructions to fill out a survey to nominate your application that requires greater than 10gb of storage. Other announcements included: MARS in April: Execute multiple batches in a single connection Spatial Data in June: Geography and geometry types SQL Azure Labs: SQL Azure Labs provides a place where you can access incubations and early preview bits for products and enhancements to SQL Azure. Currently OData Service for SQL Azure. Related Links: SQL Azure Announcements at MIX http://ukazure.ning.com

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  • Increase application performance

    - by Prayos
    I'm writing a program for a company that will generate a daily report for them. All of the data that they use for this report is stored in a local SQLite database. For this report, the utilize pretty much every bit of the information in the database. So currently, when I query the datbase, I retrieve everything, and store the information in lists. Here's what I've got: using (var dataReader = _connection.Select(query)) { if (dataReader.HasRows) { while (dataReader.Read()) { _date.Add(Convert.ToDateTime(dataReader["date"])); _measured.Add(Convert.ToDouble(dataReader["measured_dist"])); _bit.Add(Convert.ToDouble(dataReader["bit_loc"])); _psi.Add(Convert.ToDouble(dataReader["pump_press"])); _time.Add(Convert.ToDateTime(dataReader["timestamp"])); _fob.Add(Convert.ToDouble(dataReader["force_on_bit"])); _torque.Add(Convert.ToDouble(dataReader["torque"])); _rpm.Add(Convert.ToDouble(dataReader["rpm"])); _pumpOneSpm.Add(Convert.ToDouble(dataReader["pump_1_strokes_pm"])); _pumpTwoSpm.Add(Convert.ToDouble(dataReader["pump_2_strokes_pm"])); _pullForce.Add(Convert.ToDouble(dataReader["pull_force"])); _gpm.Add(Convert.ToDouble(dataReader["flow"])); } } } I then utilize these lists for the calculations. Obviously, the more information that is in this database, the longer the initial query will take. I'm curious if there is a way to increase the performance of the query at all? Thanks for any and all help. EDIT One of the report rows is called Daily Drilling Hours. For this calculation, I use this method: // Retrieves the timestamps where measured depth == bit depth and PSI >= 50 public double CalculateDailyProjectDrillingHours(DateTime date) { var dailyTimeStamps = _time.Where((t, i) => _date[i].Equals(date) && _measured[i].Equals(_bit[i]) && _psi[i] >= 50).ToList(); return _dailyDrillingHours = Convert.ToDouble(Math.Round(TimeCalculations(dailyTimeStamps).TotalHours, 2, MidpointRounding.AwayFromZero)); } // Checks that the interval is less than 10, then adds the interval to the total time private static TimeSpan TimeCalculations(IList<DateTime> timeStamps) { var interval = new TimeSpan(0, 0, 10); var totalTime = new TimeSpan(); TimeSpan timeDifference; for (var j = 0; j < timeStamps.Count - 1; j++) { if (timeStamps[j + 1].Subtract(timeStamps[j]) <= interval) { timeDifference = timeStamps[j + 1].Subtract(timeStamps[j]); totalTime = totalTime.Add(timeDifference); } } return totalTime; }

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  • How do I close a database connection in a WCF service?

    - by Dan
    I have been unable to find any documentation on properly closing database connections in WCF service operations. I have a service that returns a streamed response through the following method. public virtual Message GetData() { string sqlString = BuildSqlString(); SqlConnection conn = Utils.GetConnection(); SqlCommand cmd = new SqlCommand(sqlString, conn); XmlReader xr = cmd.ExecuteXmlReader(); Message msg = Message.CreateMessage( OperationContext.Current.IncomingMessageVersion, GetResponseAction(), xr); return msg; } I cannot close the connection within the method or the streaming of the response message will be terminated. Since control returns to the WCF system after the completion of that method, I don't know how I can close that connection afterwards. Any suggestions or pointers to additional documentation would be appreciated. Dan

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  • Problem connecting to postgres with Kohana 3 database module on OS X Snow Leopard

    - by Bart Gottschalk
    Environment: Mac OS X 10.6 Snow Leopard PHP 5.3 Kohana 3.0.4 When I try to configure and use a connection to a postgresql database on localhost I get the following error: ErrorException [ Warning ]: mysql_connect(): [2002] No such file or directory (trying to connect via unix:///var/mysql/mysql.sock) Here is the configuration of the database in /modules/database/config/database.php (note the third instance named 'pgsqltest') return array ( 'default' => array ( 'type' => 'mysql', 'connection' => array( /** * The following options are available for MySQL: * * string hostname * string username * string password * boolean persistent * string database * * Ports and sockets may be appended to the hostname. */ 'hostname' => 'localhost', 'username' => FALSE, 'password' => FALSE, 'persistent' => FALSE, 'database' => 'kohana', ), 'table_prefix' => '', 'charset' => 'utf8', 'caching' => FALSE, 'profiling' => TRUE, ), 'alternate' => array( 'type' => 'pdo', 'connection' => array( /** * The following options are available for PDO: * * string dsn * string username * string password * boolean persistent * string identifier */ 'dsn' => 'mysql:host=localhost;dbname=kohana', 'username' => 'root', 'password' => 'r00tdb', 'persistent' => FALSE, ), 'table_prefix' => '', 'charset' => 'utf8', 'caching' => FALSE, 'profiling' => TRUE, ), 'pgsqltest' => array( 'type' => 'pdo', 'connection' => array( /** * The following options are available for PDO: * * string dsn * string username * string password * boolean persistent * string identifier */ 'dsn' => 'mysql:host=localhost;dbname=pgsqltest', 'username' => 'postgres', 'password' => 'dev1234', 'persistent' => FALSE, ), 'table_prefix' => '', 'charset' => 'utf8', 'caching' => FALSE, 'profiling' => TRUE, ), ); And here is the code to create the database instance, create a query and execute the query: $pgsqltest_db = Database::instance('pgsqltest'); $query = DB::query(Database::SELECT, 'SELECT * FROM test')->execute(); I'm continuing to research a solution for this error but thought I'd ask to see if someone else has already found a solution. Any ideas are welcome. One other note is that I know my build of PHP can access this postgresql db since I'm able to manage the db using phpPgAdmin. But I have yet to determine what phpPgAdmin is doing differently to connect to the db than what Kohana 3 is attempting. Bart

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  • Proactive Database Index Creation

    Indexes help your application find your data quickly and provide users with a well performing application, while minimizing server resources. This article discusses indexing guidelines related to join tables and covering indexes.

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  • Scaling Out the Distribution Database

    Replication is a great technology for moving data from one server to another, and it has a great many configuration options. David Poole brings us a technique for scaling out with multiple distribution databases.

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  • What is an Ontology (Database?) ?

    - by Robert Gould
    I was just reading this article and it mentions that some organization had an Ontology as(?) their database(?) layer, and that the decision to do this was bad. Problem is I hadn't heard about this before, so I can't understand why it's bad. So I tried googling about databases and ontology, and came about quite a few pdfs from 2006 that we're full of incomprehensible content (for my mind). I read a few of these and at this point still have absolutely no idea what they are talking about. My current impression is that it was some crazy fad of 2006 that some academics were trying to sell us, but failed miserably due to the wording of their ideas. But I'm still curious if anyone actually knows what this is actually all about.

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  • SQL SERVER Spatial Database Queries What About BLOB T-SQL Tuesday #006

    Michael Coles is one of the most interesting book authors I have ever met. He has a flair of writing complex stuff in a simple language. There are a very few people like that. I really enjoyed reading his recent book, Expert SQL Server 2008 Encryption. I strongly suggest taking a look at it. This [...]...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • Securing data inside Azure SQL? Any good libraries or DIY?

    - by Sid
    Azure SQL doesn't support many of the encryption features found in SQL Server (Table and Column encryption). We need to store some sensitive information that needs to be encrypted and we've rolled our own using AesCryptoServiceProvider to encrypt/decrypt data to/from the database. This solves the immediate issue (no cleartext in db) but poses other problems like Key rotation (we have to roll our own code for this, walking through the db converting old cipher text into new cipher text) metadata mapping of which tables and which columns are encrypted. This is simple with it's a few but quickly gets out of hand ... So are there any libraries out there that do this well? Any other resources or design patterns I can be pointed to?

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  • Keeping an enum and a table in sync

    - by MPelletier
    I'm making a program that will post data to a database, and I've run into a pattern that I'm sure is familiar: A short table of most-likely (very strongly likely) fixed values that serve as an enum. So suppose the following table called Status: Status Id Description -------------- 0 Unprocessed 1 Pending 2 Processed 3 Error In my program I need to determine a status Id for another table, or possibly update a record with a new status Id. I could hardcode the status Id's in an enum and hope no one ever changes the database. Or I could pre-fetch the values based on the description (thus hardcoding that instead). What would be the correct approach to keep these two, enum and table, synced?

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  • WinForm Text Control that displays current character/character limit

    - by Refracted Paladin
    I need a way to display, like you see in some web apps, the current characters/character limit for a Text Control(i.e. 3/500). I usually see this as a label residing directly above or below the Text Control. How is this 'normally' accomplished? Should I override my Text Control somehow? Do I just manually add labels by every Text Control and 'bind' them to properties of the Text Control? Do I need to create a composite control that has the Text Control & Label Controls together to accomplish what I need? Any direction or help will be greatly appreciated.

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  • No SQLCompact Edition Support IN VS 2013

    - by James Izzard
    Firstly apologies if this is a poor question - I am an engineer not a programmer. I have spent time moving from Visual Basic to C#. I have started C#/SQL tutorials. I have noticed VS 2013 has stopped supporting the compact edition database normally used for standalone desktop apps. Somebody has kindly written a plugin to re-implement support. I have also noticed a belief circulating that SQLite is to replace the compact edition. Would anybody be able to advise if this was accurate - I am slightly confused as to which database is best suited for desktop app development inside VS 2013. Any comment greatly appreciated. Cheers James

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  • Google Books - Online Literacy Database

    The idea of Google Books was first conceived in 2002 when a small group of Google programmers started pondering the question of how many man hours it would take to scan every single book ever written... [Author: Chris Holgate - Computers and Internet - March 29, 2010]

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  • How do I close a database connection being used to produce a streaming result in a WCF service?

    - by Dan
    I have been unable to find any documentation on properly closing database connections in WCF service operations. I have a service that returns a streamed response through the following method. public virtual Message GetData() { string sqlString = BuildSqlString(); SqlConnection conn = Utils.GetConnection(); SqlCommand cmd = new SqlCommand(sqlString, conn); XmlReader xr = cmd.ExecuteXmlReader(); Message msg = Message.CreateMessage( OperationContext.Current.IncomingMessageVersion, GetResponseAction(), xr); return msg; } I cannot close the connection within the method or the streaming of the response message will be terminated. Since control returns to the WCF system after the completion of that method, I don't know how I can close that connection afterwards. Any suggestions or pointers to additional documentation would be appreciated.

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  • A WPF Image/Text Button

    - by psheriff
    Some of our customers are asking us to give them a Windows 8 look and feel for their applications. This includes things like buttons, tiles, application bars, and other features. In this blog post I will describe how to create a button that looks similar to those you will find in a Windows 8 application bar. In Figure 1 you can see two different kinds of buttons. In the top row is a WPF button where the content of the button includes a Border, an Image and a TextBlock. In the bottom row are four...(read more)

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  • Finding Stuff in SQL Server Database DDL

    You'd have thought that nothing would be easier than using SQL Server Management Studio (SSMS) for searching through the DDL for both the names and definitions of the structural metadata of your databases, for the occurrence of a particular string of letters. Not so easy, it turns out, though Phil Factor is able to come up with various methods for various purposes.

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