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• SQL, moving million records from a database to other database [migrated]

  - by Ryoma

  I am a C# developer, I am not really good with SQL. I have a simple questions here. I need to move more than 50 millions records from a database to other database. I tried to use the import function in ms SQL, however it got stuck because the log was full (I got an error message The transaction log for database 'mydatabase' is full due to 'LOG_BACKUP'). The database recovery model was set to simple. My friend said that importing millions records using task-import data will cause the log to be massive and told me to use loop instead to transfer the data, does anyone know how and why? thanks in advance

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• Adding cards to a vector for computer card game

  - by Tucker Morgan

  I am writing a Card game that has a deck size of 30 cards, each one of them has to be a unique, or at least a another (new XXXX) statement in a .push_back function, into a vector. Right now my plan is to add them to a vector one at a time with four separate, depending on what deck type you choose, collections of thirty .push_back functions. If the collection of card is not up for customization, other than what one of the four suits you pick, is there a quicker way of doing this, seems kinda tedious, and something that someone would have found a better way of doing.

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• One method with many behaviours or many methods

  - by Krowar

  This question is quite general and not related to a specific language, but more to coding best practices. Recently, I've been developing a feature for my app that is requested in many cases with slightly different behaviours. This function send emails , but to different receivers, or with different texts according to the parameters. The method signature is something like public static sendMail (t_message message = null , t_user receiver = null , stream attachedPiece = null) And then there are many condition inside the method, like if(attachedPiece != null) { } I've made the choice to do it this way (with a single method) because it prevents me to rewrite the (nearly) same method 10 times, but I'm not sure that it's a good practice. What should I have done? Write 10 sendMail method with different parameters? Are there obvious pros and cons for these different ways of programming? Thanks a lot.

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• What's better than outputdebugstring for windows debugging?

  - by Peter Turner

  So, before I came to my current place of employment, the windows OutputDebugString function was completely unheard of, everyone was adding debug messages to string lists and saving them to file or doing showmessage popups (not very useful for debugging drawing issues). Now everybody (all 6 of us) is like "What can I say about this OutputDebugString?" and I'm like, "with much power comes much responsibility." I kind of feel as though I've passed a silent but deadly code smell to my colleagues. Ideally we wouldn't have bugs to debug right? Ideally we'd have over 0% code coverage, eh? So as far as petty debugging is concerned (not complete rewriting of a 3 million line Delphi behemoth) what's a better way to use debug running code than just adding OutputDebugString all over?

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• Drawing a textured triangle with CPU instead of GPU

  - by Jenko

  I understand the benefits of GPU rendering and such, but for a certain limited application I need to render textured triangles purely using CPU. I've built a 3D engine capable of object handling, transform, projection, culling and the likes ... now all I need is a little code snippet that draws a single textured triangle onto a bitmap... any language accepted! Inputs: Texture bitmap, Triangle U/V/W coords, Triangle X/Y screen coords Output: The textured triangle drawn at the given screen coords I've currently been using a platform function to draw triangles to screen, but I'm looking to handle it myself to speeden up the process.

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• Phone crash when try to use vibration on Android

  - by Diego Unanue

  Im developing an app that when you click a button the phone has to vibrate, the issue is that the phone just chashes. Saing that I need permitions to vibrate. I've already set this permition in the build.setting (android manifiest). Here is the code build.settings: settings = { orientation = { default = "portrait", supported = { "portrait", } }, iphone = { plist= { CoronaUseIOS7LandscapeOnlyWorkaround = true, CoronaUseIOS7IPadPhotoPickerLandscapeOnlyWorkaround = true, CoronaUseIOS6LandscapeOnlyWorkaround = true, CoronaUseIOS6IPadPhotoPickerLandscapeOnlyWorkaround = true, UIApplicationExitsOnSuspend = false, UIPrerenderedIcon = true, UIStatusBarHidden = false, CFBundleIconFile = "Icon.png", CFBundleIconFiles = { "Icon.png", "[email protected]", "Icon-60.png", "[email protected]", "Icon-72.png", "[email protected]", "Icon-76.png", "[email protected]", "Icon-Small.png", "[email protected]", "Icon-Small-40.png", "[email protected]", "Icon-Small-50.png", "[email protected]", }, }, }, android = { permissions = { { name = ".permission.C2D_MESSAGE", protectionLevel = "signature" }, }, usesPermissions = { "android.permission.INTERNET", "android.permission.VIBRATE", }, }, } the file that uses the vibration is: local onButtonEvent = function (event ) system.vibrate() end I read all post in Corona page without success. Can I see the android manifest to see if the permissions are there. I've read that is a Corona issue not sure.

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• Python C API return more than one value / object

  - by Grisu

  I got the following problem. I have written a C-Extension to Python to interface a self written software library. Unfortunately I need to return two values from the C function where the last one is optional. In Python the equivalent is def func(x,y): return x+y, x-y test = func(13,4) #only the first value is used In my C extension I use return Py_BuildValue("ii",x+y,x-y); which results in a tuple. If I now try to access the return value from Python via test2 = cfunc(13,4) print(test2) I got a tuple instead of only the first return value. How is possible to build the same behavior as in Python from C Extension?

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• How to attach a sprite to a TMXTiledMap at a particular coordinate, in AndEngine?

  - by shailenTJ

  I am trying to add a sprite at a "grid" location on the tiled map. The TMX tiled Map is like a grid, and you can access the size of the grid by calling mTMXtiledMap.getTileRows() and mTMXtiledMap.getTileColumns(). I want to add an object at grid location, say (2, 5). My tileMap is of size (10,10). How can I do that? There is no function like mTMXTiledMap.addChild(int x, int y, Entity mEntity). I would appreciate any suggestions!

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• Self Documenting Code Vs. Commented Code

  - by Phill

  I had a search but didn't find what I was looking for, please feel free to link me if this question has already being asked. Earlier this month this post was made: http://net.tutsplus.com/tutorials/php/why-youre-a-bad-php-programmer/ Basically to sum it up, you're a bad programmer if you don't write comments. My personal opinion is that code should be descriptive and mostly not require comment's unless the code cannot be self describing. In the example given // Get the extension off the image filename $pieces = explode('.', $image_name); $extension = array_pop($pieces); The author said this code should be given a comment, my personal opinion is the code should be a function call that is descriptive: $extension = GetFileExtension($image_filename); However in the comments someone actually made just that suggestion: http://net.tutsplus.com/tutorials/php/why-youre-a-bad-php-programmer/comment-page-2/#comment-357130 The author responded by saying the commenter was "one of those people", i.e, a bad programmer. What are everyone elses views on Self Describing Code vs Commenting Code?

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• Does the LGPL allow me to do this?

  - by user1229892

  I am planning to develop a commercial software using a LGPL software. In the LGPL software that I am using some functions in a class are not fully implemented. I want to modify the LGPL code so that the class and not-implemented functions are made visible outside the dll by adding dllexport infront of class and by adding virtual keyword infront of function. Then I plan to implement those functions in my proprietary software. I am ready to distribute the modified LGPL code but not proprietary software that implements functions in the way I want. Does that violate LGPL terms and conditions?

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• Tracking click conversions with Google Analytics

  - by Joel

  Is there anyway I can use Google Analytics to track click conversions on a link? For example, if I have a link to www.a.com , is it possible for google to track the number of times that particular link was shown on my page and then track how many times it was really clicked? The problem is that I do not show the link to www.a.com every time the page loads. I am using a random function (server side) to generate a different link everytime. I would like Google Analytics to provide me with the click conversion for each of the links I choose to show the user. Thanks, Joel

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• If I define a property to prototype appears in the constructor of object, why?

  - by Eduard Florinescu

  I took the example from this question modified a bit: What is the point of the prototype method? function employee(name,jobtitle,born) { this.name=name; this.jobtitle=jobtitle; this.born=born; this.status="single" } employee.prototype.salary=10000000; var fred=new employee("Fred Flintstone","Caveman",1970); console.log(fred.salary); fred.salary=20000; console.log(fred.salary) And the output in console is this: What is the difference salary is in constructor but I still can access it with fred.salary, how can I see if is in constructor from code, status is still employee property how can I tell for example if name is the one of employee or has been touch by initialization? Why is salary in constructor, when name,jobtitle,born where "touched" by employee("Fred Flintstone","Caveman",1970); «constructor»?

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• Design for a plugin based application

  - by Varun Naik

  I am working on application, details of which I cannot discuss here. We have core framework and the rest is designed as plug in. In the core framework we have a domain object. This domain object is updated by the plugins. I have defined an interface in which I have function as DomainObject doProcessing(DomainObject object) My intention here is I pass the domain object, the plug in will update it and return it. This updated object is then passed again to different plugin to be updated. I am not sure if this is a good approach. I don't like passing the DomainObject to plugin. Is there a better way I can achieve this? Should I just request data from plugin and update the domain object myself?

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• Is there a constant for "end of time"?

  - by Nick Rosencrantz

  For some systems, the time value 9999-12-31 is used as the "end of time" as the end of the time that the computer can calculate. But what if it changes? Wouldn't it be better to define this time as a builtin variable? In C and other programming languages there usually is a variable such as MAX_INT or similar to get the largest value an integer could have. Why is there not a similar function for MAX_TIME i.e. set the variable to the "end of time" which for many systems usually is 9999-12-31. To avoid the problem of hardcoding to a wrong year (9999) could these systems introduce a variable for the "end of time"?

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• Use a template to get alternate behaviour?

  - by Serge

  Is this a bad practice? const int sId(int const id); // true/false it doesn't matter template<bool i> const int sId(int const id) { return this->id = id; } const int MCard::sId(int const id){ MCard card = *this; this->id = id; this->onChange.fire(EventArgs<MCard&, MCard&>(*this, card)); return this->id; } myCard.sId(9); myCard.sId<true>(8); As you can see, my goal is to be able to have an alternative behaviour for sId. I know I could use a second parameter to the function and use a if, but this feels more fun (imo) and might prevent branch prediction (I'm no expert in that field). So, is it a valid practice, and/or is there a better approach?

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• Guidance on building an au pair-to-family networking site.

  - by Philip Kidd

  I'm building a website for an au pair agency business that will connect au pairs to families around Europe. I know nothing about website building, HTML etc. so I'm using a wysiwyg editer (weebly). How I would like the site to function: Families upload their information into profiles Au pairs do the same families can view a limited part of an au pairs' profile until they pay a deposit After deposit is payed, all au pairs' profile information becomes open to families Families can order au pairs and confirm their order with another payment payment must be made before 'order' is confirmed By 'order' I mean full communications become open between the family and the au pair they have 'ordered' as well as travel information being sent to another agency the site needs to be linked with a bank account (e.g paypal) and another agency, who will look after the flight bookings etc. A website already exists for this business however it just contains information on the business and application forms - if the site becomes fully automated it will relieve a lot of strain on administration in the office (dealing with applications, travel information etc.)

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• Python C API return more than one value / object without building a tuple [migrated]

  - by Grisu

  I got the following problem. I have written a C-Extension to Python(2.7 / 3.2) to interface a self written software library. Unfortunately I need to return two values from the function where the last one is optional. In Python I tried def func(x,y): return x+y, x-y test = func(13,4) but test is a tuple. If I write test1,test2 = func(13,4) I got both values separated. Is there a possibility to return only one value without unpacking the tuple, i.e. the second(,.. third, ..fourth) value gets neglected? And if such a solution existst, how does it look for the C-API? Because return Py_BuildValue("ii",x+y,x-y); results in a tuple as well.

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• Pointless Code In Your Source

  - by Ali

  I've heard stories of this from senior coders and I've seen some of it myself. It seems that there are more than a few instances of programmers writing pointless code. I will see things like: Method or function calls that do nothing of value. Redundant checks done in a separate class file, object or method. if statements that always evaluate to true. Threads that spin off and do nothing of note. Just to name a few. I've been told that this is because programmers want to intentionally make the code confusing to raise their own worth to the organization or make sure of repeat business in the case of contractual or outsourced work. My question is. Has anyone else seen code like this? What was your conclusion was to why that code was there? If anyone has written code like this, can you share why?

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• Scripts won't affect clones - Unity3d

  - by user3666251

  I made a script which swaps two game objects on click.But the script won't work because the objects are actualy clones of the original prefab. This is the script (UnityScript): #pragma strict var object1 : GameObject; var object2 : GameObject; function OnMouseDown () { Instantiate(object2,object1.transform.position,object1.transform.rotation); Destroy(object1); } I use this script to create other game objects (clones)[c#] : using UnityEngine; using System.Collections; public class Spawner : MonoBehaviour { public GameObject[] obj; public float spawnMin = 1f; public float spawnMax = 2f; // Use this for initialization void Start () { Spawn (); } void Spawn() { Instantiate(obj[Random.Range(0, obj.GetLength(0))],transform.position, Quaternion.identity); Invoke ("Spawn", Random.Range (spawnMin, spawnMax)); } } The objects get renamed to NAME (Clone). What I wanna do is make the script affect clones too.So they will swap when I click on them.

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• Circular Bullet Spread not Even

  - by SoulBeaver

  I'm creating a bullet shooter much in the style of Touhou. Right now I want to have a very simple circular shot being fired from the enemy. See this picture: As you can see, the spacing is very uneven, which isn't very good if you want to survive. The code I'm using is this: private function shoot() : void { const BULLETS_PER_WAVE : int = 72; var interval : Number = BULLETS_PER_WAVE / 360; for (var i : int = 0; i < BULLETS_PER_WAVE; ++i { var xSpeed : Number = GameConstants.BULLET_NORMAL_SPEED_X * Math.sin(i * interval); var ySpeed : Number = GameConstants.BULLET_NORMAL_SPEED_Y * Math.cos(i * interval); BulletFactory.createNormalBullet(bulletColor_, alice_.center, xSpeed, ySpeed); } canShoot_ = false; cooldownTimer_.start(); } I imagine my mistake is in the sin, cos functions, but I'm not entirely sure what's wrong.

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• REPLACENULL in SSIS 2012

  - by Davide Mauri

  While preparing my slides e demos for the forthcoming SQL Server Conference 2012 in Italy, I’ve come across a nice addition to DTS Expression language which I never noticed before and that seems unknown also to the blogosphere: REPLACENULL. REPLACENULL is the same of ISNULL in T-SQL. It’s *very* useful especially when loading a fact table of your BI solution when you need to replace unexisting reference to dimension with dummy values. Here’s an example of how it can be used (please notice that in this example I’m NOT loading a fact table): I’ve noticed that the feature was requested by fellow MVP John Welch http://connect.microsoft.com/SQLServer/feedback/details/636057/ssis-add-a-replacenull-function-to-the-expression-language So: Thanks John and Thanks SSIS Team ! Ah, btw, the Help online is here http://msdn.microsoft.com/en-us/library/hh479601(v=sql.110).aspx Enjoy!

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• Do programmers at non-software companies need the same things as at software companies?

  - by Michael

  There is a lot of evidence that things like offices, multiple screens, administration rights of your own computer, and being allowed whatever software you want is great for productivity while developing. However, the studies I've seen tend toward companies that sell software. Therefore, keeping the programmers productive is paramount to the company's profitability. However, at companies that produce software simply to support their primary function, programming is merely a support role. Do the same rules apply at a company that only uses the software they produce to support their business, and a lot of a programmer's work is maintainence?

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• Frame Interpolation issues for skeletal animation

  - by sebby_man

  I'm trying to animate in-between keyframes for skeletal animation but having some issues. Each joint is represented by a quaternion and there is no translation component. When I try to slerp between the orientations at the two key frames, I got a very wacky animation. I know my skinning equation is right because the animation is perfectly fine when the animation is directly on a keyframe rather than in-between two. I'm using glm's built in mix function to do the slerp, so I don't think there are any problems with the actual slerp implementation. There's really one thing left that could be wrong here. I must not be in the correct space to do slerp. Right now the orientations are in joint local space. Do I have to be in world space? In some other space along the way? I have the bind pose matrix and world-space transformation matrix at my disposal if those are needed.

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• JQuery Mobile: Fire Mobileinit Event

  - by Yousef_Jadallah

   Many people asked that the Mobileinit event didn't work. Simplicity just you need to follow this sequence: <link rel="stylesheet" href="http://code.jquery.com/mobile/1.0b1/jquery.mobile-1.0b1.min.css" />     <script src="http://code.jquery.com/jquery-1.6.1.min.js"></script>     <script>         $(document).bind("mobileinit", function () {             alert('mobileinit is fired');         });     </script>     <script src="http://code.jquery.com/mobile/1.0b1/jquery.mobile-1.0b1.min.js"></script> Hope that helps.  

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• cannot open ubuntu software center

  - by success

  I deleted some unnecessary icon themes and now my application icons are changed. I cannot open Ubuntu software center also.... the following message is displayed.... success@user-pc:~$ software-center 2012-09-12 22:24:52,048 - softwarecenter.ui.gtk3.app - INFO - setting up proxy 'None' 2012-09-12 22:24:52,055 - softwarecenter.db.database - INFO - open() database: path=None use_axi=True use_agent=True Traceback (most recent call last): File "/usr/bin/software-center", line 142, in <module> app = SoftwareCenterAppGtk3(datadir, xapian_base_path, options, args) File "/usr/share/software-center/softwarecenter/ui/gtk3/app.py", line 387, in __init__ self.datadir) File "/usr/share/software-center/softwarecenter/ui/gtk3/panes/historypane.py", line 78, in __init__ self._get_emblems(self.icons) File "/usr/share/software-center/softwarecenter/ui/gtk3/panes/historypane.py", line 192, in _get_emblems pb = icons.load_icon(emblem, self.ICON_SIZE, 0) File "/usr/lib/python2.7/dist-packages/gi/types.py", line 43, in function return info.invoke(*args, **kwargs) gi._glib.GError: Icon 'package-install' not present in theme I also tried the following code to change the icon but no didnt work.... gksu gedit /usr/share/applications/ubuntu-software-center.desktop

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