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• java : writing large files ?

  - by umanga

  Greetings , I get huge number of records from database and write into a file.I was wondering what the best way to write huge files. (1Gb - 10Gb). Currently I am using BufferedWriter BufferedWriter mbrWriter=new BufferedWriter(new FileWriter(memberCSV)); while(done){ //do writings } mbrWriter.close();

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• DDD: Can I have my persistence layer object implement an interface that uses enum, with implicit con

  - by Maslow

  I have a domain interface public interface ITicket { ... TicketWorkflowStatus StatusId{get;set;} // Enum } but the linq-to-sql persistance layer on the database wants to use int, can I change it in the dbml so that the local type is TicketWorkflowStatus? What are my options?

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• XML Postback issue

  - by Mikey1980

  I have a script that is designed to parse XML postbacks from Ultracart, right now just dumps it into a MySQL table. The script works fine if I point it to a XML file on my localhost but using 'php://input' it doesn't seem to grabbing anything. My logs show apache returning 200 after the post so I have no idea what could be wrong or how to drill down the issue.. here's the code: $doc = new DOMDocument(); $doc->loadXML($page); $handle = fopen("test2/".time().".xml", "w+"); fwrite($handle,trim($page)); // it doesn't save this either :'( fclose(); require_once('includes/database.php'); $db = new Database('localhost', 'user', 'password', 'db_name'); $data = array(); $exports = $doc->getElementsByTagName("export"); foreach ($exports as $export) { $orders = $export->getElementsByTagName("order"); foreach($orders as $order) { $data['order_id'] = $order->getElementsByTagName("order_id")->item(0)->nodeValue; $data['payment_status'] = $order->getElementsByTagName("payment_status")->item(0)->nodeValue; $date_array = explode(" ",$order->getElementsByTagName("payment_date_time")->item(0)->nodeValue); if ($date_array[1] == 'JAN') { $date_array[1] = '01'; } if ($date_array[1] == 'FEB') { $date_array[1] = '02'; } if ($date_array[1] == 'MAR') { $date_array[1] = '03'; } if ($date_array[1] == 'APR') { $date_array[1] = '04'; } if ($date_array[1] == 'MAY') { $date_array[1] = '05'; } // converts Ultracart date to if ($date_array[1] == 'JUN') { $date_array[1] = '06'; } // MySQL date if ($date_array[1] == 'JUL') { $date_array[1] = '07'; } if ($date_array[1] == 'AUG') { $date_array[1] = '08'; } if ($date_array[1] == 'SEP') { $date_array[1] = '09'; } if ($date_array[1] == 'OCT') { $date_array[1] = '10'; } if ($date_array[1] == 'NOV') { $date_array[1] = '11'; } if ($date_array[1] == 'DEC') { $date_array[1] = '12'; } $data['payment_date'] = $date_array[2]."-".$date_array[1]."-".$date_array[0]; $data['payment_time'] = $date_array[3]; //... we'll skip this, there are 80 some elements $data['discount'] = $order->getElementsByTagName("discount")->item(0)->nodeValue; $data['distribution_center_code'] = $order->getElementsByTagName("distribution_center_code")->item(0)->nodeValue; } } } $db->insert('order_history',$data); } else die('ERROR: Token Check Failed!');

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• Ruby Rss parser and event trigger

  - by fenec

  I'm using RSS library so i can parse Atom and RSS in Ruby and Rails and store it in a model. I've looked at the standard RSS library, but is there one library that will auto-detect that there is a new rss feed so i can update my database ? what are the best practice to trigger an instruction in order to store the new rss feed ? should i use threads to handle that problem ?is it going to be slow? thank you for your help

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• Programming Logic upgrading from VB6 to Vb.net

  - by KoolKabin

  Hi guys, I have been programming in vb6 for few time ago and i used open SQL Server connection and command objects to make database traansactions. I have been searching for similar approaches in vb.net too but not finding any starting point. How can we work similarly in vb.net application?

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• html editor properties

  - by Ranjana

  i have used the html editor to my page <%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit.HTMLEditor" TagPrefix="cc1" % i have sent the values to the database as txtjobdesc.Content.Tostring(); but if i type just a paragraph in the editor it is displaying the same Description. But if i use any Bullets and Highlighted words it is displaying as words above the bulleted words.how to make it display as a html description pls help me out..

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• GQL select by UserProperty

  - by fmsf

  Hey I have this code but it doesn't work because it is expecting a string. How can I make it work? class Atable(BaseModel): owner = db.UserProperty() (...) --------- // -------------- query = "SELECT * FROM Atable WHERE owner=", users.get_current_user() results = db.GqlQuery(query) How can I fix that search? Thanks :) I've started with the appengine database yesterday so be gentle :)

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• Can We use SqlCacheDependency with a product not containing ASP.net part?

  - by sahil garg

  Is SQLCacheDependency used in context of ASP.net or can it be used for a project of .net only. Rather tahn using ASP.net i am receiving request by listening on a port.I want to store data for my session in cache.If this data is fetched from database then i want it to be updated using something like SQLCacheDependency.Can I configure it for my use or is it restricted for use with asp.net cache.

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• debugging JBoss 100% CPU usage

  - by NateS

  Originally posted on Server Fault, where it was suggested this question might better asked here. We are using JBoss to run two of our WARs. One is our web app, the other is our web service. The web app accesses a database on another machine and makes requests to the web service. The web service makes JMS requests to other machines, aggregates the data, and returns it. At our biggest client, about once a month the JBoss Java process takes 100% of all CPUs. The machine running JBoss has 8 CPUs. Our web app is still accessible during this time, however pages take about 3 minutes to load. Restarting JBoss restores everything to normal. The database machine and all the other machines are fine, only the machine running JBoss is affected. Memory usage is normal. Network utilization is normal. There are no suspect error messages in the JBoss logs. I have set up a test environment as close as possible to the client's production environment and I've done load testing with as much as 2x the number of concurrent users. I have not gotten my test environment to replicate the problem. Where do we go from here? How can we narrow down the problem? Currently the only plan we have is to wait until the problem occurs in production on its own, then do some debugging to determine the cause. So far people have just restarted JBoss when the problem occurred to minimize down time. Next time it happens they will get a developer to take a look. The question is, next time it happens, what can be done to determine the cause? We could setup a separate JBoss instance on the same box and install the web app separately from the web service. This way when the problem next occurs we will know which WAR has the problem (assuming it is our code). This doesn't narrow it down much though. Should I enable JMX remote? This way the next time the problem occurs I can connect with VisualVM and see which threads are taking the CPU and what the hell they are doing. However, is there a significant down side to enabling JMX remote in a production environment? Is there another way to see what threads are eating the CPU and to get a stacktrace to see what they are doing? Any other ideas? Thanks!

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• Converting ByteArrayInputStream to xml file

  - by user291780

  I have an xml document that was serialized into a byte stream and persisted to a database. I any get the byte stream back, but how do I convert it into an xml file again?

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• Can I use this technique to provide free email service for my users?

  - by Naughty.Coder

  I'll let users register their [email protected] ,,, they enter their members area where they can : 1- send emails ( easy to do) 2- receive emails .. for receiving emails , I'll use a catch all email account , read the email and figure to whom it's sent (username), and then I save it on the database with userid of the username who has registerd ! Do I miss something here ... is it really this simple (if I don't have an email server) ?

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• Good event calendaring / scheduling design guide?

  - by Neil McF

  Hello, In an application I'm designing, the user has to be able to specify rather complex event scheduling (continuous time-block vs. daily time-blocks, exception date/times, recurrence patterns etc.) Does anyone know of a good design page for such a thing online? For example, I was highly impressed with this page's description of how to do database audit trails, and would love something similar. Thanks.

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• How to create encrypted Jar file?

  - by Kartik Mistry

  I am working on project that must need to protect data (revealing code is not main problem) files. We are using Java + Netbeans. Is there any facility that will create jar in encrypted format? We are also using sqlite for database - so putting text file in encrypted format is not proper option for us too.

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• Doctrine CodeIgniter MySQL CRUD errors

  - by 01010011

  Hi, I am using CI + Doctrine + MySQL and I am getting the following CRUD errors: (1) When trying to create a new record in the database with this code: $book_title = 'The Peloponnesian War'; $b = new Book(); $b-title = $book_title; $b-price = 10.50; $b-save(); I get this error: Fatal error: Uncaught exeption 'Doctrine_Connection_Mysql_Exception' with message 'SQLSTATE[42S22]: Column not found: 1054 Unknown column 'title' in 'field list' in ... (2) When trying to fetch a record from the database and display on my view page with this code: $book_title = 'The Peloponnesian War'; $title = $book_title; $search_results = Doctrine::getTable('Book')-findOneByTitle($title); echo $search_results-title; (in view file) I get this error: Fatal error: Uncaught exception 'Doctrine_Connection_Mysql_Exception' with message 'SQLSTATE[45S22]: Column not found: 1054 Unknown column 'b.id' in 'field list" in ... And finally, when I try to update a record as follows: $book_title = 'The Peloponnesian War'; $title = $book_title; $u = Doctrine::getTable('Book')-find($title); $u-title = $title; $u-save(); I get a similar error: Fatal error: Uncaught exception 'Doctrine_Connection_Mysql_Exception' with message 'SQLSTATE[42S22]: Column not found: 1054 Unknown column 'b.id' in 'field list''in ... Here is my Doctrine_Record model: class Book extends Doctrine_Record{ public function setTableDefinition() { $this->hasColumn('book_id'); $this->hasColumn('isbn10','varchar',20); $this->hasColumn('isbn13','varchar',20); $this->hasColumn('title','varchar',100); $this->hasColumn('edition','varchar',20); $this->hasColumn('author_f_name','varchar',20); $this->hasColumn('author_m_name','varchar',20); $this->hasColumn('author_l_name','varchar',20); $this->hasColumn('cond','enum',null, array('values' => array('as new','very good','good','fair','poor'))); $this->hasColumn('price','decimal',8, array('scale' =>2)); $this->hasColumn('genre','varchar',20); } public function setUp() { $this->setTableName('Book'); //$this->actAs('Timestampable'); } Any assistance will be really appreciated. Thanks in advance.

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• Add Entities using EF

  - by kathy

  ![It would be great if someone can point me in the right direction on this topic I have the following admx: And I have to add the (AccData, CntactData, PhnNumber, FnclDetail)entities to the database in one shot What’s the best practices to do the add operation for the above entities?? ]1

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• Sqlite / SQLAlchemy: how to enforce Foreign Keys?

  - by Nick Perkins

  The new version of SQLite has the ability to enforce Foreign Key constraints, but for the sake of backwards-compatibility, you have to turn it on for each database connection separately! sqlite> PRAGMA foreign_keys = ON; I am using SQLAlchemy -- how can I make sure this always gets turned on? What I have tried is this: engine = sqlalchemy.create_engine('sqlite:///:memory:', echo=True) engine.execute('pragma foreign_keys=on') ...but it is not working!...What am I missing?

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• SQL Server 2005 Installation on Windows 2000 Server

  - by Raghu

  Hi All, We want to install sql server 2005 on Windo ws 2000 Server. We are able to install database service engine, analysis services engine and integration services. But we are unable to install workstation components like SSMS. Does anybody faced this problem? What is the fix for this? Thanks, Raghu

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• Filestream in Sql Server 2008 Express

  - by Xaitec

  i tried to get it to work but i never seem to have to luck, i go a code snippet for a blog and still no dice. This is the code. EXEC sp_configure filestream_access_level, 1 GO RECONFIGURE GO CREATE DATABASE NorthPole ON PRIMARY ( NAME = NorthPoleDB, FILENAME = 'C:\Temp\NP\NorthPoleDB.mdf' ), FILEGROUP NorthPoleFS CONTAINS FILESTREAM( NAME = NorthPoleFS, FILENAME = 'C:\Temp\NP\NorthPoleFS') LOG ON ( NAME = NorthPoleLOG, FILENAME = 'C:\Temp\NP\NorthPoleLOG.ldf') GO

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• BDC Security Issues

  - by geekspt

  We are planning to use BDC to read and probably write to a SQL Server content database on external server. I have heard that there are many security issues that you may run into or should be aware of before setting up BDC. has anyone faced or knows any security issues with BDC. Thanks.

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• What is the best way to make a POST request from cucumber to create a new object?

  - by Jason

  For several of my cuke scenarios, I want to POST the user to a page with an object in the params, so that Rails will make a new object in the database. Is there a convenient way to send a POST+params to an action (either using something in cucumber or rails) or do I have to write my own function using Net::Http?

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• Android horizontal scrolling showing Cursor data

  - by androidharry

  I have some text data in database which I have retrieved in a Cursor, and I am displaying it in a ListView. What I want to do now is that when you select click a particular row in the list its text content should be displayed in full screen and the user should be able to scroll horizontally (like scrolling between iPhone home screens) to view the contents of the Cursor.

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• How to extract data from a PDF?

  - by Fermin

  Hi, My company receives data from an external company via Excel. We export this into SQL Server to run reports on the data. They are now changing to PDF format, is there a way to reliably port the data from the PDF and insert it into our SQL Server 2008 database? Would this require writing an app or is there an automated way of doing this?

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• how to save image in cakephp

  - by manish

  Hi sir, I need to upload image in table as well as in folder.please help me ,how i will save image in folder and database. please describe the method. Thanks Manish

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• how to customize google map for own site?

  - by manish

  Hi, i want to create google map for own site.my task is that i have to fetch some information from database and i want to show in google map,with my icon.some thing like "http://www.jaap.nl/koophuizen/Groningen///_/_/1/?rad=5km&min=450000&max=1000000" in right side ,google map is showing,excatly i want to show my google map.if any have idea please help me Thanks Manish [email protected]

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• rails migration version number and new model object crazy id.

  - by fenec

  hello, i have this crazy label for each time i create a migration that use the time instead of a integer. it makes things very hard to switch between the version of the database that you want to use. i also have this crazy ID for each object that i create : How can set up rails to have easy version and id numbers. thank you

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