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• How to find the nearest integer to a specified integer from a table of integers?

  - by corrilaz

  How to find the nearest integer upon the provided one? Say, I have the following integers in the mysql database: 405, 600, 304. The question is how to I select 600 upon providing 550 or select 304 upon providing 300 (ie, so as to find the nearest integer)? i am talking about INTEGERS, not floats.

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• How do i remove files from the Pending Changes list in TFS when those files have been deleted locall

  - by kjm

  as the question says...anyone now how I can remove these files. I didn't commit the changes in TFS before I deleted them locally and now they always appear in the Pending Changes window...I'd like to get rid of them thanks

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• In gzip libary, what's the difference between 'uncompress' and 'gzopen' ?

  - by Sol

  There are some functions to decompress in zlib library(zlib version 1.2.3) I want to decompress my source zip(.gz) file using 'uncompress' function. It is now working(error code -3) but gzopen is. It is still not working when I input payload pointer(passing gzip header) to 'uncompress' . So the question is "What's the valid arguments for uncompress function?" and If it needs different format, how can I make it? Google doesn't helpful this time :(

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• Implementing themes in Silverlight 4 apps.

  - by AngryHacker

  I have a 2 part question: Is there anything more to implementing themes than simply placing a <toolkit:BlahBlahBlahTheme> tag around all your content? What is the pattern for switching out themes at runtime? Is there such a thing?

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• trim phone number with regex

  - by adrianm

  Probably an easy regex question. How do I remove all non-digts except leading + from a phone number? i.e. 012-3456 = 0123456 +1 (234) 56789 = +123456789

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• Hyper-V snapshot backup strategy appropriate for production SQL server?

  - by Chuck

  So SQL Server 2008 in Hyper-V is a supported configuration, and should perform well as long as you use fixed or pass-through disks and increase your processor/memory settings appropriately. My question is can I use snapshots as a reliable backup mechanism, or should I use the tried and trusted maintenance plan to do my backups?

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• C# Random generation

  - by Betamoo

  I have just passed this article online: C# Corner and C# Corner and his article (a software developer with over 13 years of experience) recommended using System.Random as follows: private int RandomNumber(int min, int max) { Random random = new Random(); return random.Next(min, max); } Isn't that would give him the same number every time ?? Edit: So my question will become: How does Random choose its seed? a constant or current time value? Thanks

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• Is an equivalent site of stackoverflow exists for other topics than computer science ? [closed]

  - by Guillaume

  I like a lot stackoverflow and I feel it far superior of other forum systems when dealing with questions and answers stuff. Now I get frustrated when asking question on more mainstream topics on basic forum. Someone knows if such a site exists ? Thanks.

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• Database design advice needed.

  - by user346271

  Hi all, I'm a lone developer for a telecoms company, and am after some database design advice from anyone with a bit of time to answer. I am inserting into one table ~2 million rows each day, these tables then get archived and compressed on a monthly basis. Each monthly table contains ~15,000,000 rows. Although this is increasing month on month. For every insert I do above I am combining the data from rows which belong together and creating another "correlated" table. This table is currently not being archived, as I need to make sure I never miss an update to the correlated table. (Hope that makes sense) Although in general this information should remain fairly static after a couple of days of processing. All of the above is working perfectly. However my company now wishes to perform some stats against this data, and these tables are getting too large to provide the results in what would be deemed a reasonable time. Even with the appropriate indexes set. So I guess after all the above my question is quite simple. Should I write a script which groups the data from my correlated table into smaller tables. Or should I store the queries result sets in something like memcache? I'm already using mysqls cache, but due to having limited control over how long the data is stored for, it's not working ideally. The main advantages I can see of using something like memcache: No blocking on my correlated table after the query has been cashed. Greater flexibility of sharing the collected data between the backend collector and front end processor. (i.e custom reports could be written in the backend and the results of these stored in the cache under a key which then gets shared with anyone who would want to see the data of this report) Redundancy and scalability if we start sharing this data with a large amount of customers. The main disadvantages I can see of using something like memcache: Data is not persistent if machine is rebooted / cache is flushed. The main advantages of using MySql Persistent data. Less code changes (although adding something like memcache is trivial anyway) The main disadvantages of using MySql Have to define table templates every time I want to store provide a new set of grouped data. Have to write a program which loops through the correlated data and fills these new tables. Potentially will still grow slower as the data continues to be filled. Apologies for quite a long question. It's helped me to write down these thoughts here anyway, and any advice/help/experience with dealing with this sort of problem would be greatly appreciated. Many thanks. Alan

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• how to bind the same vector multiple times using R?

  - by hendrik

  question: how can i bind the same vector, lets say o=c(1,2,3,4) mutiple times to get a matrix like o=array(c(1,2,3,4,1,2,3,4,1,2,3,4), dim(c(4,3)) o [,1] [,2] [,3] [1,] 1 1 1 [2,] 2 2 2 [3,] 3 3 3 [4,] 4 4 4 in a nicer way then: o=cbind(o,o,o) and maybe more generalized (dublicate()?? I need this to specifiy colors for elements in textplot() thx a lot

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• Is 1-to-n multicast on the open internet reliable?

  - by Jeremy Dunck

  I'm a newbie at networking. I understand the concept of multicast, but was wondering if it's reliable on the open/public internet? It seems like sort of an edge case that different backbones or ISPs might intentionally break to reduce router load or generally segment the network for practical high-use applications. Is my fear reasonable? P.S. Follow-up question here: http://stackoverflow.com/questions/256125/best-tutorial-for-application-multicasting

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• Can g_time_out add be given a member function of a class?

  - by paultop6

  Hi Guys, The question is simply in the title, if i have a function i want to use via a g_timeout_add, but this function is a Class member function, is there any way i can use it with g_timeout_add? Regards Paul

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• When would isSearchable return false for an Oracle JDBC column?

  - by Ian Varley

  In what cases would a call to java.sql.ResultSetMetaData.isSearchable(int col) return false for an Oracle database? The documentation for the method doesn't really answer the question: "Indicates whether the designated column can be used in a where clause." I can think of only one case - when the column is the result of an aggregate function (in which case it would have to be part of a HAVING filter, not a WHERE filter). Are there any other cases?

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• Definition of domains in mySQL?

  - by mal

  I'm working on a college exercise and have the following question: What is the domain of the "country" table? My understanding of domain is that it defines the possible values of an attribute. This means that the table "country" doesn't have a domain, but the various attributes in the table "country" have their own domains. For example the attribute "SurfaceArea" has the domain FLOAT(10,2) and the attribute "Name" has the domain CHAR(52). Is this correct?

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• How do machine code instructions get transferred to the CPU?

  - by user3711789

  I'm currently investigating what the runtime of different programming languages looks like behind the scenes. For a compiled language like C, people usually give the explanation of "Code is compiled to assembly which is assembled and linked into a binary executable. The executable is then loaded into memory and the CPU interprets it." My question is how does the CPU know where to look for the next instruction to execute? Is it a memory address stored in one of the registers?

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• Replace a control on the screen

  - by Rob Bonner

  Hello all, I have an instance of a FlowCoverView (a great library that emulates cover flow on the iPhone). And it works great, with the exception of an update. When I update my table behind the scenes, I have no way of telling this control (that is defined in IB) that it has been updated, and to reload. (much like you can with a table using reloadData) To the question, is there a way to replace a control that is on the screen with another control to force the reload?

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• Where can I find some good tutorials for C++

  - by Rob

  My friend has convinced me to start learning some C++, so my question is simple: where can I find some good tutorials for it? But please don't link me to the usual dry boring tutorials that only tells you the function syntax, I need more thorough explanations. I get sidetracked very easily, and I need tutorials that are more on a human level, that I'll not only learn from, but enjoy reading as well. So I'd appreciate any links that would help :)

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• Copy data from one SQL Server database table to the other

  - by lucky

  I don't know how to copy table data from one server - database - table TO other sever - database - table. If it is with in the same server and different databases, i have used the following SELECT * INTO DB1..TBL1 FROM DB2..TBL1 (to copy with table structure and data) INSERT INTO DB1..TBL1(F1, F2) SELECT F1, F2 FROM DB2..TBL1 (copy only data) Now my question is copy the data from SERVER1 -- DB1-- TBL1 to SERVER2 -- DB2 --TBL2

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• Semaphores values

  - by Joel

  Hey, I have a question regarding using Semaphores HANDLE WINAPI CreateSemaphore(...); Is there anyway I can get the current value of the semaphore? Thanks, Joel

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• Using low level api for datastore in google app engine ? is it bad ?

  - by Chez

  There is little documentation on how to use the low level api for datastore and quite a lot on JPA and JDO and how it translates to it. My question is: is there any advantage in coding against the JPA or JDO specs instead of accessing directly the low level api for datastore ? From an initial look, it seems simple and straight forward but I am not sure if there are good reasons why not to do it. Thanks Cx

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• Are reference attributes destroyed when class is destroyed in C++?

  - by Genba

  Suppose I have a C++ class with an attribute that is a reference: class ClassB { ClassA &ref; public: ClassB(ClassA &_ref); } Of course, the constructor is defined this way: ClassB::ClassB(ClassA &_ref) : ref(_ref) { /* ... */ } My question is: When an instance of class 'ClassB' is destroyed, is the object referenced by 'ClassB::ref' also destroyed?

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• How can I pass a C++ member function to a C API as a parameter

  - by michael

  Hi, In my C++ program, I need to call this c API: GConn* gnet_conn_new (const gchar *hostname, gint port, GConnFunc func); where GConnFunc is defined as: void (*GConnFunc) (GConn *conn); My question is if I have a C++ class and have a member function like Class A { public: A(); void my_func (GConn* conn); } In my A::A() Constructor, how can I pass this-myfunc to gnet_conn_new as the GConnFunc parameter? Thank you.

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• YouTube .Net API - Not getting correct View Counts

  - by Ardman

  I've managed to plug away through the YouTube documentation, and have managed to successfully implement the majority of what I want to work. My question is, I get the video View count and it comes back lower than the actual video on YouTube. It was fine this morning and both showed correctly, but now my version is out by 4 views. Does anyone have any experience with this? Or can tell me if they update the values every 5/10/15/24 hours?

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• Android: how to get the walking distance between two geo coordinats?

  - by wei

  I used this query URL http://maps.google.com/maps?q=from+A+to+B&output=kml ,which is given in the answer to this question. But after I tried it, it doesn't work with coordinates. It works with address names tho. I guess I could use google's geocoding to get the addresses first. But I wonder if there is another way to get the walking distance between two coordinates?

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• Convert an array of primitive longs into a List of Longs

  - by CaptainAwesomePants

  This may be a bit of an easy, headesk sort of question, but my first attempt surprisingly completely failed to work. I wanted to take an array of primitive longs and turn it into a list, which I attempted to do like this: long[] input = someAPI.getSomeLongs(); List<Long> = Arrays.asList(input); //Total failure to even compile! What's the right way to do this?

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