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  • I want Oracle Query for Formatted Output

    - by reply2viveksshah
    The following is my table design: Ecode Degree YOQ 7654321 SSC 2000 7654321 HSC 2002 7654321 Bcom 2006 7654321 MCA 2010 7654322 SSC 2002 7654322 HSC 2004 7654322 Bcom 2007 7654323 SSC 2002 7654323 HSC 2004 7654323 BE 2008 I want the following formatted output using an oracle query: Ecode Degree year 7654321 SSC,HSC,Bcom,MCA 2000,2002,2006,2010 7654322 SSC,HSC,Bcom 2002,2004,2007 7654323 SSC,HSC,BE 2002,2004,2008 How can this be done?

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  • Parsing language for both binary and character files

    - by Thorsten S.
    The problem: You have some data and your program needs specified input. For example strings which are numbers. You are searching for a way to transform the original data in a format you need. And the problem is: The source can be anything. It can be XML, property lists, binary which contains the needed data deeply embedded in binary junk. And your output format may vary also: It can be number strings, float, doubles.... You don't want to program. You want routines which gives you commands capable to transform the data in a form you wish. Surely it contains regular expressions, but it is very good designed and it offers capabilities which are sometimes much more easier and more powerful. Something like a super-grep which you can access (!) as program routines, not only as tool. It allows: joining/grouping/merging of results inserting/deleting/finding/replacing write macros which allows to execute a command chain repeatedly meta-grouping (lists-tables-hypertables) Example (No, I am not looking for a solution to this, it is just an example): You want to read xml strings embedded in a binary file with variable length records. Your tool reads the record length and deletes the junk surrounding your text. Now it splits open the xml and extracts the strings. Being Indian number glyphs and containing decimal commas instead of decimal points, your tool transforms it into ASCII and replaces commas with points. Now the results must be stored into matrices of variable length....etc. etc. I am searching for a good language / language-design and if possible, an implementation. Which design do you like or even, if it does not fulfill the conditions, wouldn't you want to miss ? EDIT: The question is if a solution for the problem exists and if yes, which implementations are available. You DO NOT implement your own sorting algorithm if Quicksort, Mergesort and Heapsort is available. You DO NOT invent your own text parsing method if you have regular expressions. You DO NOT invent your own 3D language for graphics if OpenGL/Direct3D is available. There are existing solutions or at least papers describing the problem and giving suggestions. And there are people who may have worked and experienced such problems and who can give ideas and suggestions. The idea that this problem is totally new and I should work out and implement it myself without background knowledge seems for me, I must admit, totally off the mark.

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  • What is your alternative to annotations?

    - by kunjaan
    Let us say Java didn't have annotations. What would be the ideas you would come up with to design something like Google Guice's DI framework? I am fairly new to Java and cannot think of anything other than what Junit3 Had XML Configuration Some kind of introspection? How would you inspect the elements that needed to be injected? What would be your ideal way of configuration other than annotations?

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  • Testing a db structure before beginnning to code the app

    - by driverate
    I'm in the beginning stages of writing (and learning as I go) a Python database app using SQLite. I have the db structure planned on paper, and I have the queries I'll need in mind, but before I start coding I want to fully test the db design so I know it's right and ready. What's the best free software to use to test the db structure quickest?

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  • Performance tuning of a Hibernate+Spring+MySQL project operation that stores images uploaded by user

    - by Umar
    Hi I am working on a web project that is Spring+Hibernate+MySQL based. I am stuck at a point where I have to store images uploaded by a user into the database. Although I have written some code that works well for now, but I believe that things will mess up when the project would go live. Here's my domain class that carries the image bytes: @Entity public class Picture implements java.io.Serializable{ long id; byte[] data; ... // getters and setters } And here's my controller that saves the file on submit: public class PictureUploadFormController extends AbstractBaseFormController{ ... protected ModelAndView onSubmit(HttpServletRequest request, HttpServletResponse response, Object command, BindException errors) throws Exception{ MutlipartFile file; // getting MultipartFile from the command object ... // beginning hibernate transaction ... Picture p=new Picture(); p.setData(file.getBytes()); pictureDAO.makePersistent(p); // this method simply calls getSession().saveOrUpdate(p) // committing hiernate transaction ... } ... } Obviously a bad piece of code. Is there anyway I could use InputStream or Blob to save the data, instead of first loading all the bytes from the user into the memory and then pushing them into the database? I did some research on hibernate's support for Blob, and found this in Hibernate In Action book: java.sql.Blob and java.sql.Clob are the most efficient way to handle large objects in Java. Unfortunately, an instance of Blob or Clob is only useable until the JDBC transaction completes. So if your persistent class defines a property of java.sql.Clob or java.sql.Blob (not a good idea anyway), you’ll be restricted in how instances of the class may be used. In particular, you won’t be able to use instances of that class as detached objects. Furthermore, many JDBC drivers don’t feature working support for java.sql.Blob and java.sql.Clob. Therefore, it makes more sense to map large objects using the binary or text mapping type, assuming retrieval of the entire large object into memory isn’t a performance killer. Note you can find up-to-date design patterns and tips for large object usage on the Hibernate website, with tricks for particular platforms. Now apparently the Blob cannot be used, as it is not a good idea anyway, what else could be used to improve the performance? I couldn't find any up-to-date design pattern or any useful information on Hibernate website. So any help/recommendations from stackoverflowers will be much appreciated. Thanks

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  • Are unit tests also used to find bugs?

    - by Draco
    I was reading the following article and the author made it quite clear that unit tests are NOT used to find bugs. I would like to know what your thoughts are on this. I do know that unit tests makes the design of your application much more robust but isn't it the fact that finding bugs through unit tests that make the application robust, besides its other advantages? http://blog.stevensanderson.com/2009/08/24/writing-great-unit-tests-best-and-worst-practises/

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  • Weird bug in header in IE7

    - by Luuk
    Hi all, I have a weird bug in IE7. http://www.luukratief-design.nl/dump/simplefolio/ the navigation has to be centered. same goes for the background. Now every browser does it perfectly. even IE6! (didnt do pngfix yet). The only one who is having problems is IE7 who shifts the whole navbar element to the right. Anyone knows how this is possible?

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  • Recommendation on remote access setup for accessing customer systems

    - by gregmac
    I'm looking for a product recommendation (open or commercial) that will allow remote access to customer sites for tech support purposes. We need to be able to gain access to help troubleshoot problems on servers. Currently end up using anything from RDP on public IP, to various VPNs that clients happen to have, to webex-type sessions that require lots of interaction from both sides to get things working. This often means a problem that could take 10 minutes to solve takes an extra 30+ minutes messing around trying to get a connection up. There are multiple customer sites, which should NOT have access to each other. At each site, there is anywhere from 1 to 8 servers (Windows 2003 or 2008) that need to be accessed. Support connection to machines even if they're behind a firewall/router with no public IP Be able to selectively allow/deny access from customer site. Customer site should not be able to connect outbound to anywhere else (our systems, or other customer sites) Support multiple users from our end If not a VPN connection (where RDP could be used over top), should support: Remote desktop access, including copy/paste File transfers Preferably would have some way to list all remote systems, showing online/offline. Anyone have any suggestions?

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  • PHP 5.2 Function needed for GENERIC sorting of a recordset array

    - by donbriggs
    Somebody must have come up with a solution for this by now. We are using PHP 5.2. (Don't ask me why.) I wrote a PHP class to display a recordset as an HTML table/datagrid, and I wish to expand it so that we can sort the datagrid by whichever column the user selects. In the below example data, we may need to sort the recordset array by Name, Shirt, Assign, or Age fields. I will take care of the display part, I just need help with sorting the data array. As usual, I query a database to get a result, iterate throught he result, and put the records into an assciateiave array. So, we end up with an array of arrays. (See below.) I need to be able to sort by any column in the dataset. However, I will not know the column names at design time, nor will I know if the colums will be string or numeric values. I have seen a ton of solutions to this, but I have not seen a GOOD and GENERIC solution Can somebody please suggest a way that I can sort the recordset array that is GENERIC, and will work on any recordset? Again, I will not know the fields names or datatypes at design time. The array presented below is ONLY an example. UPDATE: Yes, I would love to have the database do the sorting, but that is just not going to happen. The queries that we are running are very complex. (I am not really querying a table of Star Trek characters.) They include joins, limits, and complex WHERE clauses. Writing a function to pick apart the SQL statement to add an ORDER BY is really not an option. Besides, sometimes we already have the array that is a result of the query, rather than the ability to run a new query. Array ( [0] => Array ( [name] => Kirk [shrit] => Gold [assign] => Bridge ) [1] => Array ( [name] => Spock [shrit] => Blue [assign] => Bridge ) [2] => Array ( [name] => Uhura [shrit] => Red [assign] => Bridge ) [3] => Array ( [name] => Scotty [shrit] => Red [assign] => Engineering ) [4] => Array ( [name] => McCoy [shrit] => Blue [assign] => Sick Bay ) )

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  • Is it ok to use <strong> in place of <b> blindly ?

    - by metal-gear-solid
    Note: I know <b> is presentational and <span style="font-weight:bold> is better way and <strong> and <em> for emphasis but my question is not regarding this. Should we convert every <b> to <strong> blindly ? many people do this they think <b> is not good as per web standards so they convert every <b> to <strong> upon site redesign, content re-population, new site design and people suggest this to others also. Dreamweaver has also given option to convert all <b> and <i> to <strong> and <em> on code paste in design view and when we use B and I Which people use blindly. And Dreamweaver(if above option is checked) and many online WYSIWYG editor give output in <strong> and <em> while button shows B and I. In my opinion it's creating misconception about <strong> and <b> When we get content from client we don't know where client want to give emphasize and where he just want to use text bold for presentation purpose.What we should do in this condition? no one has time client and we both to give time to think for each bold text, it should be in <b> or in <strong>, <i> or in <em> What are pros and cons to convert every <b> and <i> into <strong> and <em> blindly if we are saying our site is accessible? Update: remember <b> and <i> are not deprecated there are in HTML 5 specification

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  • APC (php accelerator). What situations should I use this?

    - by matthewsteiner
    So I've just got a small vps. I've installed apc, which sped up normal pages by 20% - 30%. I was reading about memcached and came to the conclusion that I can use apc for the same thing (caching objects from database results) if I'm not distributing over other servers. Since I only have the one server, apc will be just as beneficial for caching things in memory. I'm still in development mode, and I'm sure it's hard to tell what would be best for production mode. The thing is, my database queries seem pretty fast (between .0008 and .02). None of my pages are way database intensive. Would it be beneficial to me to cache results in memory? If the database is running well right now, is it going to be having a hard time later? Also, is connecting to the database at all something that costs speed (even if I cache most of my queries, every page has to have a little database interaction for session data). So, basically if I have a limited ram, and one machine, will using apc rather than just letting the database be uncached be much faster? Ideas?

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  • sIFR selected text background

    - by elon
    It seems to me that sIFRed text when selected allways have black background. My site design is dark (mostly black). So when use select sIFRed text it looks like nothing happens, it is selected but no one can see that cause both site and selected text background are black. Normal text have white or some kind of dark-green color depending on font color. How to change color of selected text background?

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  • Is there anything as good as TOAD for Postgres (Windows)?

    - by misc090912
    Hi guys, I'm just looking for a management tool like TOAD for Postgres. Anyone used a good one? Edit - I work mostly within the data itself and the database already has a mature model/design. I use the edit windows the most (well, in TOAD for Oracle anyway.) As far as I know, Toad only exists naturally for: Oracle, MS SQL, DB2 and MySQL... --JS

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  • making changes in master page from front(calling) page in vb.net

    - by ferrer
    i have a page called a1.aspx, with the Masterpagefile = a1_master.master. Now the master page has its own div's and images for design purpose. I want a way where when i load a1.aspx, certain chosen 's and images should be hidden (visible=false). how can i do this? how can i change the visibility of a div or an image in the master page from the calling page?

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  • Understanding Ruby class vs instance methods

    - by randombits
    I have the following code: #!/usr/bin/ruby class Person def self.speak p = self.new puts "Hello" p.chatter end private def chatter puts "Chattering" end end p = Person.new Person.speak I'd like to make chatter private, accessible only within p.. but I want p to be able to access it within the class method. Is there a better way to design this so chatter isn't available to the public, but a "factory" method like self.speak can call chatter?

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  • Method Vs Property

    - by obsoleteattribute
    Hi, I'm a newbie to .NET. I have a class called Project, a project can have multiple forecasts.Now If I want to check if the projects has any forecasts or not should I use a readonly boolean property called HasForecast() or should I use a method named HasForecast() which basically returns a boolean value.From framework design guidelines I came to know that methods should be used when the operation is complex,since here I'm retrieving the value of forecasts from DB should I consider method, or since it is a logical data member should I use a property.If I use a property can I call a method in DBLayer from its getter.Please explain Regards, Ravi

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  • NIC reordering on RHEL5/CentOS 5

    - by ewwhite
    I have an HP ProLiant DL360 G6 containing two onboard NICs as well as an HP NC375T (NetXen NX3031 chipset) 4-port PCIe card. The system was running with eth0 and eth1 belonging to the onboard NICs and eth2-eth5 on the NetXen card. I recently rebuilt the server and from the kickstart process onward, the NICs were reordered such that the onboard NICs became eth4 and eth5, while the NetXen card took over eth0-eth3. I've had some experiences in the past where I tied NICs to specific interfaces via changes in the ifcfg-ethX config files, but this is the first time I've ever seen an add-in card take over eth0 from the motherboard's interfaces. This impacted my kickstart scripts, so: 1). How can I ensure that the onboard NICs take precedence in the kickstart arrangement. 2). What is the most consistent way to maintain that ordering through repeated reboots, kernel changes (e.g. going from a RHEL mainline kernel to a RHEL MRG realtime kernel), etc. 3). What is the interaction between the /etc/modprobe.conf module/NIC definitions, the /etc/sysconfig/network-scripts/ifcfg-ethX and the /etc/modprobe.d/blacklist functions in this context?

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  • Should I learn Sass?

    - by Davey
    I do a lot of design work with XHTML, CSS, and PHP. A friend mentioned Sass to me and it looks pretty cool. I don't know anything about Ruby or Rails and I am running a windows machine. Does anyone know a good tutorial for a beginner to dig in to something like this?

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  • Dynamic pages and controls with Asp .NET

    - by Abhilash
    Hi, We are starting with the design of an ASP .NET Web UI using WCSF as the UI FW. We are evaluating some FW which will allow us to build dynamic pages, dynamic as in, deciding at runtime what user controls will be displayed and in what order. Also possibly, the pages and order in which they will be displayed. We are looking at Page Flow Application Block, but there's limited documentation around it, we were interested in knowing what other options could be considered. Thanks for your help guys...

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  • How to edit and display Date in ASP.Net MVC 2

    - by Picflight
    I am storing a date in my database and want the user to be able to edit this date in the Edit View. In the past with ASP.Net web forms I have used 3 dropdownlists for the Month, Day and Year to get the date from the user and to bind it on display. I want to do the same in ASP.Net MVC and not sure how to do it? I am not using any jQuery or Javascript, the design calls for simple postback.

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