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  • Oracle: Is there a way to get the column data types for a view?

    - by rally25rs
    For a table in oracle, I can query "all_tab_columns" and get table column information, like the data type, precision, whether or not the column is nullable. In SQL Developer or TOAD, you can click on a view in the GUI and it will spit out a list of the columns that the view returns and the same set of data (data type, precision, nullable, etc). So my question is, is there a way to query this column definition for a view, the way you can for a table? How do the GUI tools do it?

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  • fire an intent from the onCreate method in android

    - by Sephy
    Maybe my question might seem a bit weird, but I have an activity in which, in one case , I have to move to another activity before it finishes loading the screen. My condition is in the onCreate method, which means when I encounter it, i get a "startActivity called from outside an activity context" error and the app just crashes... But then, is there an easy way like a flag for the intent to make it work without having the activity context resolved? thanks for any answer

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  • Querystring formatting in asp.net MVC 2

    - by Stuart
    Seems like a straitforward question but I can't quite figure it out myself... I have an actionlink like so Html.ActionLink( "Test", "test", new { q = "search+twitter" } ) This produces a url string as follows http://myserver/test?q=search%2Btwitter But i would like to preserve the plus sign (which i assume is being UrlPathEncoded) so that I get the following url http://myserver/test?q=search+twitter Is there an easy way to do this whilst still using Html.ActionLink ?

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  • What's the best way to fix memory leaks on the iPhone?

    - by Anthony Glyadchenko
    I'm trying to use XCode's Leaks utility to fix some memory leaks in my code. Is there a better and more understandable way to check for leaks with explanations that pinpoint the exact line and/or offer suggestions? Another question, I'm using AVAudioRecorder in my code in one of my view controllers. Should I load the recorder in viewDidLoad or in viewWillAppear?

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  • Database schema for simple stats project

    - by Bubnoff
    Backdrop: I have a file hierarchy of cvs files for multiple locations named by dates they cover ...by month specifically. Each cvs file in the folder is named after the location. eg', folder name: 2010-feb contains: location1.csv location2.csv Each CSV file holds records like this: 2010-06-28, 20:30:00 , 0 2010-06-29, 08:30:00 , 0 2010-06-29, 09:30:00 , 0 2010-06-29, 10:30:00 , 0 2010-06-29, 11:30:00 , 0 meaning of record columns ( column names ): Date, time, # of sessions I have a perl script that pulls the data from this mess and originally I was going to store it as json files, but am thinking a database might be more appropriate long term ...comparing year to year trends ...fun stuff like that. Pt 2 - My question/problem: So I now have a REST service that coughs up json with a test database. My question is [ I suck at db design ], how best to design a database backend for this? I am thinking the following tables would suffice and keep it simple: Location: (PK)location_code, name session: (PK)id, (FK)location_code, month, hour, num_sessions I need to be able to average sessions (plus min and max) for each hour across days of week in addition to days of week in a given month or months. I've been using perl hashes to do this and am trying to decide how best to implement this with a database. Do you think stored procedures should be used? As to the database, depending on info gathered here, it will be postgresql or sqlite. If there is no compelling reason for postgresql I'll stick with sqlite. How and where should I compare the data to hours of operation. I am storing the hours of operation in a yaml file. I currently 'match' the hour in the data to a hash from the yaml to do this. Would a database open simpler methods? I am thinking I would do this comparison as I do now then insert the data. Can be recalled with: SELECT hour, num_sessions FROM session WHERE location_code=LOC1 Since only hours of operation are present, I do not need to worry about it. Should I calculate all results as I do now then store as a stats table for different 'reports'? This, rather than processing on demand? How would this look? Anyway ...I ramble. Thanks for reading! Bubnoff

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  • How to display an external content in my website using javascript

    - by Chris
    Hello! This is my first post! I have a question about javascript...here is my code: <html> <head> <title>Geolocation Demo</title> </head> <body> <h1>Geolocation Demo</h1> <p>Latitude: <span id="lat">0.00</span> Longitude: <span id="lon">0.00</span> City: <span id="city">Loading...</span></p> <p><a id="city_link" href="http://tinygeocoder.com/" target="_blank">View City</a></p> <p><a id="gmaps_link" href="http://maps.google.co.uk/" target="_blank">View on Google Maps</a></p> <script language="javascript"> // show the position on the page and make a google maps link function showPosition(position) { var lat = position.coords.latitude; var lon = position.coords.longitude; document.getElementById("lat").innerHTML = lat; document.getElementById("lon").innerHTML = lon; var gmaps_url = "http://maps.google.co.uk/maps?f=q&source=s_q&hl=en&geocode=&q=" + lat + "+" + lon; var city_url = "http://tinygeocoder.com/create-api.php?g=" + lat + "," + lon; document.getElementById("gmaps_link").href = gmaps_url; document.getElementById("city_link").href = city_url; } </script> </body> </html> As you can see, this script target my geolocation. Specifically, Lat and Lon are working perfectly. In addinition, i want to display and region info (like city). So, i found a website which i provide the coordinates and it returns me a region name. My question is if i can display the name of region without clicking the link "View city" but in the field "city"...is it possible to pass the webpage content (http://tinygeocoder.com/create-api.php?g=" + lat + "," + lon;) into my webpage? The content of this page is only the name as i said...no html tags! Thank you!

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  • Why membership provider is not generic?

    - by Timmy O' Tool
    I have to confess that I hate membership provider. The default implementation is not very appropriate normally and I haven't seen so far a good implementation of a custom membership provider, probably because this is not possible :-) So the question is: In your opinion: which are the reasons for not having membership/role provider as a generic class? I mean, why Microsoft didn't selected this approach.

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  • The links within posts should open a tab [closed]

    - by XGreen
    I couldn't find a place to feedback about this so apologies if I shouldn't have post this as a question here. Would it be possible for the admins of the site to change the links we post in our answers to have their target as _blank. It is quite hard when it is _self as we look at those urls in correlation with what the post is about so I wouldn't want it to replace the post.

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  • svn ci after a git push on github

    - by Macarse
    I have a project on github but I need to maintain a svn repo updated with every push. I have checked this question but I want to do it automatically. Is there a way to tell github to do a svn ci when a push occurs?

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  • Checking for nulls in ASP.NET MVC Controllers

    - by Brian McCord
    Another opinion question: What is the proper (in your opinion) to check for nulls in an MVC controller. For instance, if you have an edit controller that fetches a record from the db based on an id, what do you do if that record is not found? I found this article, but I'm not sure I like that method. Do you just check for it with an if statement and redirect to a 404 page? What solution do you use?

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  • What is the display list in Flash 10? Array? Linked list?

    - by Typeoneerror
    I'm working on a game that has many elements on stage, so I'm looking to optimize my loops. I know that Vector is faster than looping an array, but I'm also in some cases using: while (i < numChildren) getChildAt(i) ...to update sprites. My question is when I use getChildAt, is that accessing an Array or Vector or linked list or other? Should I instead store references to my objects in a Vector and loop through that instead?

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  • RESTful resource not found. 404 or 204? Jersey returns 204 on null being returned from handler.

    - by jr
    If you are looking for /Resource/Id and that resource does not exist, I had always though that 404 was the appropriate response. However, when returning "null" from a Jersey handler, I get back a "204 No Content". I can likely work with either one, but am curious to others thoughts on this. To answer my own next question. To get jersey to return 404 you must throw an exception. if (a == null) throw new WebApplicationException(404);

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  • Perl - Calling subclass constructor from superclass (OO)

    - by Emmel
    This may turn out to be an embarrassingly stupid question, but better than potentially creating embarrassingly stupid code. :-) This is an OO design question, really. Let's say I have an object class 'Foos' that represents a set of dynamic configuration elements, which are obtained by querying a command on disk, 'mycrazyfoos -getconfig'. Let's say that there are two categories of behavior that I want 'Foos' objects to have: Existing ones: one is, query ones that exist in the command output I just mentioned (/usr/bin/mycrazyfoos -getconfig`. Make modifications to existing ones via shelling out commands. Create new ones that don't exist; new 'crazyfoos', using a complex set of /usr/bin/mycrazyfoos commands and parameters. Here I'm not really just querying, but actually running a bunch of system() commands. Affecting changes. Here's my class structure: Foos.pm package Foos, which has a new($hashref-{name = 'myfooname',) constructor that takes a 'crazyfoo NAME' and then queries the existence of that NAME to see if it already exists (by shelling out and running the mycrazyfoos command above). If that crazyfoo already exists, return a Foos::Existing object. Any changes to this object requires shelling out, running commands and getting confirmation that everything ran okay. If this is the way to go, then the new() constructor needs to have a test to see which subclass constructor to use (if that even makes sense in this context). Here are the subclasses: Foos/Existing.pm As mentioned above, this is for when a Foos object already exists. Foos/Pending.pm This is an object that will be created if, in the above, the 'crazyfoo NAME' doesn't actually exist. In this case, the new() constructor above will be checked for additional parameters, and it will go ahead and, when called using -create() shell out using system() and create a new object... possibly returning an 'Existing' one... OR As I type this out, I am realizing it is perhaps it's better to have a single: (an alternative arrangement) Foos class, that has a -new() that takes just a name -create() that takes additional creation parameters -delete(), -change() and other params that affect ones that exist; that will have to just be checked dynamically. So here we are, two main directions to go with this. I'm curious which would be the more intelligent way to go.

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  • POS tagger in SharpNLP

    - by C.
    I am using SharpNLP for my POS tagging: EnglishMaximumEntropyPosTagger posTagger = new EnglishMaximumEntropyPosTagger(mModelPath); String tagSentence = posTagger.TagSentence(question); I only have 3 tags. How can I load a set of Penn treebank or some other tagging tree banks to use? Thanks :)

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  • Recommendations for Open Source Parallel programming IDE

    - by Andrew Bolster
    What are the best IDE's / IDE plugins / Tools, etc for programming with CUDA / MPI etc? I've been working in these frameworks for a short while but feel like the IDE could be doing more heavy lifting in terms of scaling and job processing interactions. (I usually use Eclipse or Netbeans, and usually in C/C++ with occasional Java, and its a vague question but I can't think of any more specific way to put it)

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  • Web user interface. Add new item and list of items

    - by w1z
    Hello all I need your opinion on the following question. It's need to implement the administration web interface to add\change\remove\display system users. I need to display all users and controls for user adding/changing. What is the common pattern in web for this situation: create one page or create two separate pages for displaying and adding/changing users? Thanks, sorry for some possible oddness (:

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  • How to access the stage from an AS3 class in Adobe Flash

    - by Graphithy
    The problem I've encountered is that I am using a keyboardEventListener to make a movieclip run around. As I'm a college student, I'm creating this for an assignment but we are forced to use as3 classes. When I run the code in the maintimeline, there is no problem. But when I try to access it from another class (with an 'Export for ActionScript' on the movieclip in question) I get an error he can't address the stage. this.stage.addEventListener(KeyboardEvent.KEY_DOWN, dostuff);

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  • .NET Free memory usage (how to prevent overallocation / release memory to the OS)

    - by Ronan Thibaudau
    I'm currently working on a website that makes large use of cached data to avoid roundtrips. At startup we get a "large" graph (hundreds of thouthands of different kinds of objects). Those objects are retrieved over WCF and deserialized (we use protocol buffers for serialization) I'm using redgate's memory profiler to debug memory issues (the memory didn't seem to fit with how much memory we should need "after" we're done initializing and end up with this report Now what we can gather from this report is that: 1) Most of the memory .NET allocated is free (it may have been rightfully allocated during deserialisation, but now that it's free, i'd like for it to return to the OS) 2) Memory is fragmented (which is bad, as everytime i refresh the cash i need to redo the memory hungry deserialisation process and this, in turn creates large object that may throw an OutOfMemoryException due to fragmentation) 3) I have no clue why the space is fragmented, because when i look at the large object heap, there are only 30 instances, 15 object[] are directly attached to the GC and totally unrelated to me, 1 is a char array also attached directly to the GC Heap, the remaining 15 are mine but are not the cause of this as i get the same report if i comment them out in code. So my question is, what can i do to go further with this? I'm not really sure what to look for in debugging / tools as it seems my memory is fragmented, but not by me, and huge amounts of free spaces are allocated by .net , which i can't release. Also please make sure you understand the question well before answering, i'm not looking for a way to free memory within .net (GC.Collect), but to free memory that is already free in .net , to the system as well as to defragment said memory. Note that a slow solution is fine, if it's possible to manually defragment the large heap i'd be all for it as i can call it at the end of RefreshCache and it's ok if it takes 1 or 2 second to run. Thanks for your help! A few notes i forgot: 1) The project is a .net 2.0 website, i get the same results running it in a .net 4 pool, idem if i run it in a .net 4 pool and convert it to .net 4 and recompile. 2) These are results of a release build, so debug build can not be the issue. 3) And this is probably quite important, i do not get these issues at all in the webdev server, only in IIS, in the webdev i get memory consumption rather close to my actual consumption (well more, but not 5-10X more!)

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  • Database structure for versioning and multiple languages

    - by phobia
    How can I solve the issue of content existing in multiple versions and multiple languages? My current structure: Each content can only have one active version in each language, and that's how I'm curious on how to best solve. Right now I have a column of the contentversions table, which means for each change of active version I have to run a update and set active=false on all version and then a update to set active=true for the piece of content in question.

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  • Convert any Form Video into RGB24 Media

    - by BALA
    how to convert YUY2,YUV, RGB565 and More Video subtype into RGB24 Subtype Video in DirectShow + VC++ can u understand my question? I have a Upstream filter its output is in YUY2 Format but i need to convert it into RGB24 Format. Is there any inbuilt Filters in DirectShow or we have to convert it through my code. i have already added ColorSpaceConverter But it is not Connecting with Smart Tee Input Pin.

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