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  • 'Advanced' Console Application

    - by keynesiancross
    Hi all, I'm not sure if this question has been answered elsewhere and I can't seem to find anything through google that isn't a "Hello World" example... I'm coding in C# .NET 4.0. I'm trying to develop a console application that will open, display text, and then wait for the user to input commands, where the commands will run particular business logic. For example: If the user opens the application and types "help", I want to display a number of statements etc etc. I'm not sure how to code the 'event handler' for user input though. Hopefully this makes sense. Any help would be much appreciated! Cheers.

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  • The unary increment operator in pointer arithmetic

    - by RhymesWithDuck
    Hello, this is my first post. I have this function for reversing a string in C that I found. void reverse(char* c) { if (*c != 0) { reverse(c + 1); } printf("%c",*c); } It works fine but if I replace: reverse(c + 1); with: reverse(++c); the first character of the original string is truncated. My question is why would are the statements not equivalent in this instance? Thanks

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  • PHP multiple __autoload functions *without* the use of spl_register_autoload?

    - by Keith Palmer
    I'm an author of a growing library of PHP + QuickBooks related code. I'd like to utilize PHPs __autoload() function, however my code is a library that other people can include() into their own applications, so I can't rely on __autoload() being not already defined. Is there a way to have multiple __autoload() functions? I saw spl_autoload_register() in the PHP manual, but not all of my users have the SPL extension installed, so I can't rely on that. If there was a way to fall-back to using this and use normal require/include statements by default, I might consider that. Does anyone else have any other clever solutions to this issue? It seems like a glaring oversight to only be able to have a single __autoload() function...

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  • Building a linked list with LINQ

    - by FreshCode
    What is the fastest way to order an unordered list of elements by predecessor (or parent) element index using LINQ? Each element has a unique ID and the ID of that element's predecessor (or parent) element, from which a linked list can be built to represent an ordered state. Example ID | Predecessor's ID --------|-------------------- 20 | 81 81 | NULL 65 | 12 12 | 20 120 | 65 The sorted order is {81, 20, 12, 65, 120}. An (ordered) linked list can easily be assembled iteratively from these elements, but can it be done in fewer LINQ statements? Edit: I should have specified that IDs are not necessarily sequential. I chose 1 to 5 for simplicity. See updated element indices which are random.

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  • google salve - maven

    - by chris-gr
    Hi all, I tried to install google salve http://code.google.com/p/salve/ by adding following statements in the project's pom file: However, when running mvn dependency:resolve it states "unable to find resource "salve:salve:jar:2.0" in repository salve What's wrong? <dependency> <groupId>salve</groupId> <artifactId>salve</artifactId> <version>2.0</version> </dependency> <repository> <id>salve</id> <name>Google Maven Repository</name> <url>http://salve.googlecode.com/svn/maven2/</url> </repository>

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  • Could someone tell me if my C++ indent style is named? (example given)

    - by Maulrus
    I'm learning C++. For me, my programming style is just what looks the best; it doesn't seem to follow the rules of any one particular style. Here's an example void f(int x){ //no space between close-paren and bracket if (!x){ cout << "x is non-zero\n"; } //closing bracket indented to the same level as the original statement } It's only slightly different for something like a class or a namespace: class myClass {}; //space between class name and bracket, otherwise the same as functions K&R style does uses that kind of bracketing for statements, but my style uses it for everything. I'd like to know if there's a name for it so I can say simply what my indent style is without having to explain using examples like these.

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  • Using methods on 2 input files - 2nd is printing multiple times - Java

    - by Aaa
    I have the following code to read in text, store in a hashmap as bigrams (with other methods to sort them by frequency and do v. v. basic additive smoothing. I had it working great for one language input file (english) and then I want to expand it for the second language input file (japanese - doens;t matter what it is I suppose) using the same methods but the Japanese bigram hashmap is printing out 3 times in a row with diff. values. I've tried using diff text in the input file, making sure there are no gaps in text etc. I've also put print statements at certain places in the Japanese part of the code to see if I can get any clues but all the print statements are printing each time so I can't work out if it is looping at a certain place. I have gone through it with a fine toothcomb but am obviously missing something and slowly going crazy here - any help would be appreciated. thanks in advance... package languagerecognition2; import java.lang.String; import java.io.InputStreamReader; import java.util.*; import java.util.Iterator; import java.util.List.*; import java.util.ArrayList; import java.util.AbstractMap.*; import java.lang.Object; import java.io.*; import java.util.Enumeration; import java.util.Arrays; import java.lang.Math; public class Main { /** public static void main(String[] args) { //training English ----------------------------------------------------------------- File file = new File("english1.txt"); StringBuffer contents = new StringBuffer(); BufferedReader reader = null; try { reader = new BufferedReader(new FileReader(file)); String test = null; //test = reader.readLine(); // repeat until all lines are read while ((test = reader.readLine()) != null) { test = test.toLowerCase(); char[] charArrayEng = test.toCharArray(); HashMap<String, Integer> hashMapEng = new HashMap<String, Integer>(bigrams(charArrayEng)); LinkedHashMap<String, Integer> sortedListEng = new LinkedHashMap<String, Integer>(sort(hashMapEng)); int sizeEng=sortedListEng.size(); System.out.println("Total count of English bigrams is " + sizeEng); LinkedHashMap<String, Integer> smoothedListEng = new LinkedHashMap<String, Integer>(smooth(sortedListEng, sizeEng)); //print linkedHashMap to check values Set set= smoothedListEng.entrySet(); Iterator iter = set.iterator ( ) ; System.out.println("Beginning English"); while ( iter.hasNext()) { Map.Entry entry = ( Map.Entry ) iter.next ( ) ; Object key = entry.getKey ( ) ; Object value = entry.getValue ( ) ; System.out.println( key+" : " + value); } System.out.println("End English"); }//end while }//end try catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } finally { try { if (reader != null) { reader.close(); } } catch (IOException e) { e.printStackTrace(); } } //End training English----------------------------------------------------------- //Training japanese-------------------------------------------------------------- File file2 = new File("japanese1.txt"); StringBuffer contents2 = new StringBuffer(); BufferedReader reader2 = null; try { reader2 = new BufferedReader(new FileReader(file2)); String test2 = null; //repeat until all lines are read while ((test2 = reader2.readLine()) != null) { test2 = test2.toLowerCase(); char[] charArrayJap = test2.toCharArray(); HashMap<String, Integer> hashMapJap = new HashMap<String, Integer>(bigrams(charArrayJap)); //System.out.println( "bigrams stage"); LinkedHashMap<String, Integer> sortedListJap = new LinkedHashMap<String, Integer>(sort(hashMapJap)); //System.out.println( "sort stage"); int sizeJap=sortedListJap.size(); //System.out.println("Total count of Japanese bigrams is " + sizeJap); LinkedHashMap<String, Integer> smoothedListJap = new LinkedHashMap<String, Integer>(smooth(sortedListJap, sizeJap)); System.out.println( "smooth stage"); //print linkedHashMap to check values Set set2= smoothedListJap.entrySet(); Iterator iter2 = set2.iterator(); System.out.println("Beginning Japanese"); while ( iter2.hasNext()) { Map.Entry entry2 = ( Map.Entry ) iter2.next ( ) ; Object key = entry2.getKey ( ) ; Object value = entry2.getValue ( ) ; System.out.println( key+" : " + value); }//end while System.out.println("End Japanese"); }//end while }//end try catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } finally { try { if (reader2 != null) { reader2.close(); } } catch (IOException e) { e.printStackTrace(); } } //end training Japanese--------------------------------------------------------- } //end main (inner)

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  • Image Size for Animation!

    - by taimur-hamza
    Hi Everybody, I m new to iphone app development and i need some help. I have a list of 30 images that i have to animate and display with 0.1 second interval. I put all the images in an Array using this imageletter.animationImages = [NSArray arrayWithObjects:[UIImage imageNamed:@"1.png"], ...... ,nil] And then animate it using these statements, [imageletter setAnimationDuration:16]; [imageletter startAnimating]; [NSTimer scheduledTimerWithTimeInterval:mytime target:self selector:@selector(StopAfterCertainTime) userInfo:nil repeats:NO]; Now the problem is that the size of each image is 8kb , it runs fine on iphone simulator but crashes on device. When i used 30 other images of 4kb each it runs fine both on simulator and device. Can anybody tell me what is the ideal size for such kind of task. Thanks

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  • Can I install fresh Linux accross partitions (LUKS & LVM) and preserve/use existing home user?

    - by xtian
    With an existing LUKS encrypted logical volume partitioned hard disk dual boot to Windoz and Linux (Fedora 15), is it necessary to "start over" with the LUKS setup when upgrading the system? I recall some note about dividing the Linux installation over different partitions would help to preserve the home data in future update (I can't find this now) Before I try it, is this possible and intended use case for partitioning a Linux installation? # lsblk -fa NAME FSTYPE LABEL MOUNTPOINT sda [80G] +-sda1 [system W95 FAT 32] vfat +-sda2 ext4 /boot +-sda3 [52.4G] crypto_LUKS +-luks-de25ac97-6a32-4b79-a6a0-296a39376b3b (dm-0) LVM2_member +-cryptVG-root (dm-1) [21.5G] ext4 / +-cryptVG-swap (dm-2) [5.4MB] swap [SWAP] +-cryptVG-data (dm-3) [25.6G] ext4 /home

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  • question in sql server 2005 Proc

    - by bassam
    i have this Proc CREATE Proc [dbo].Salse_Ditail -- Add the parameters for the stored procedure here @Report_Form varchar(1) , @DateFrom datetime , @DateTo datetime , @COMPANYID varchar(3), @All varchar(1) , @All1 varchar(1) , @All2 varchar(1) , @All3 varchar(1) , @All4 varchar(1) , @All5 varchar(1) , @Sector varchar(10), @Report_Parameter nvarchar(max) as BEGIN -- SET NOCOUNT ON added to prevent extra result sets from -- interfering with SELECT statements. DECLARE @STRWhere nvarchar(max) IF @All5=0 AND @All4=0 AND @All3=0 AND @All2=0 AND @All1=0 and @All=1 set @STRWhere= N'and Sector_id = @Sector' if @Report_Form =1 or @Report_Form =3 or @Report_Form =4 SELECT RETURNREASONCODEID, SITE,SITE_NAME,Factory_id,Factory_Name,Sector_id,sector_name,Customer_name, Customer_id,ITEMID,ITEMNAME,SALESMANID,SALESMAN_NAME,Net_Qty,Net_Salse,Gross_Sales,Gross_Qty, NETWEIGHT_Gross,NETWEIGHT_salse_Gross,NETWEIGHT_NET,NETWEIGHT_salse_NET,Return_Sales,Free_Good, CollectionAmount FROM hal_bas_new_rep WHERE DATAAREAID =@COMPANYID AND INVOICEDATE >= @DateFrom AND INVOICEDATE <= @DateTo and Report_Activti = @Report_Form if @Report_Form =2 SELECT RETURNREASONCODEID , RETURNREASONDESC, SITE , SITE_NAME , Factory_id , Factory_Name , Sector_id , sector_name , Customer_name , Customer_id , ITEMID , ITEMNAME , SALESMANID , SALESMAN_NAME , Return_Sales FROM dbo.hal_bas_new_rep WHERE DATAAREAID =@COMPANYID AND INVOICEDATE >= @DateFrom AND INVOICEDATE <= @DateTo and Report_Activti = @Report_Form and RETURNREASONCODEID in ( SELECT Val FROM dbo.fn_String_To_Table(@Report_Parameter,',',1) ) /* @STRWhere question how i can but the virble here */ end GO i want to but virble put a variable under where Expression and from this function buc I have many function i want to add if any one have answer pls send me

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  • setCursor on container without it changing cursor of sub components

    - by Mike
    JPanel panel = new JPanel(null); panel.setSize(400, 400); panel.add(new JButton("Test")); panel.setCursor(Cursor.getCursor(Cursor.SOMETHING_SOMETHING_CURSOR)); The panel will have a custom cursor, but I don't want the button to have a custom cursor. I don't want to have to set the cursor of every sub component, because in my application I have many and I don't want to litter the code with setCursor statements. Is there a way, like overriding a method on the JPanel or something? A "contains" method somewhere is used to determine if a cursor needs to be set. Could I fool it into thinking the mouse is not in the container if it's really in a sub component? Any other nifty little trick?

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  • Sending a variable from a processing page back to the original PHP page

    - by user1228907
    So on a PHP page (page 1) I have some HTML, including : <form action="create_subject.php" method="post" > Which goes to a processing page (page 2) containing MySQL which will be executed if there aren't any errors. If there are (checked by validation on the processing page (page 2)) or aren't, certain variables are set, including this one for if it's successful : if (mysql_affected_rows() == 1){ $success = 1; redirect_to("new_subject.php"); } However, how would I include $success into the URL without putting it in as : redirect_to("new_subject.php?success=1"); I can't do this as I need to do if statements, and it's only PHP on "page 2" so I can't do an if statement inside redirect_to("new_subject.php"); I know I could do ... } else { redirect_to("new_subject.php?success=1"); } But this would seem mundane and non-semantic especially as I have several variables to proccess.

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  • Fastest way for inserting very large number of records into a Table in SQL

    - by Irchi
    The problem is, we have a huge number of records (more than a million) to be inserted into a single table from a Java application. The records are created by the Java code, it's not a move from another table, so INSERT/SELECT won't help. Currently, my bottleneck is the INSERT statements. I'm using PreparedStatement to speed-up the process, but I can't get more than 50 recods per second on a normal server. The table is not complicated at all, and there are no indexes defined on it. The process takes too long, and the time it takes will make problems. What can I do to get the maximum speed (INSERT per second) possible? Database: MS SQL 2008. Application: Java-based, using Microsoft JDBC driver.

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  • How to ORDER BY non-column field?

    - by Phil Bolduc
    I am trying to create an Entity SQL that is a union of two sub-queries. (SELECT VALUE DISTINCT ROW(e.ColumnA, e.ColumnB, 1 AS Rank) FROM Context.Entity AS E WHERE ...) UNION ALL (SELECT VALUE DISTINCT ROW(e.ColumnA, e.ColumnB, 2 AS Rank) FROM Context.Entity AS E WHERE ...) ORDER BY *??* LIMIT 50 I have tried: ORDER BY Rank and ORDER BY e.Rank but I keep getting: System.Data.EntitySqlException: The query syntax is not valid. Near keyword 'ORDER' I do not think it is a problem with the Rank column. I do think it is how I am trying to apply an order by to two different esql statements joined by union all. Could someone suggest: How to apply a ORDER BY to this kind of UNION/UNION ALL statment How to order by the non-entity column expression. Thanks.

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  • How do I delete files in a class?

    - by user3682906
    I want to have a CRUD management on my gallery but I have no idea how. I have searched the internet but I did not find what I was looking for. This is my class: class Gallery { public function renderImages($map) { $images = ""; foreach (glob($map ."*.{jpeg,jpg,png,gif}", GLOB_BRACE) as $image){ $images .= "<a href='".$image."' data-lightbox='afbeelding'><img src='".$image."' class='thumbnail'></img></a>"; } return $images; } } and this is my gallery: <div class="gallery"> <center> <a href="index.php">Back:</a> <style> body { margin:0; padding:0; background:#efefef; font-family: "Helvetica Neue", helvetica, arial, sans-serif; color: black; text-align:center; /* used to center div in IE */ } </style> <?php $gallery = new Gallery(); echo $gallery -> renderImages("../images/"); $connection = new DatabaseConnection(); $render = new RenderData(); $page = 1; if(isset($_GET['page'])) { $check = new CheckData(); if($check->PageCheck($_GET['page'])) { $page = $_GET['page']; } } ?> <table> <div id="Intro"> <tr> <td>Hieronder kan je uploaden.</td> </tr> </div> <tr> <td>Max. 500000000Bytes</td> </tr> <tr> <form action="pages/upload_file.php" method="post" enctype="multipart/form-data"> <td><label for="file">Filename:</label></td> </tr> <tr> <td><input type="file" name="file" id="file"></td> </tr> <tr> <td><input type="submit" name="submit" value="Submit"></td> </tr> <tr> <td><input type="submit" name="delete" value="Delete"></td> </tr> </form> </table> How do I make a CRUD management on this? I want to select the photo and then delete it from my computer. I hope you guys can help me out...

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  • How do you write a recursive stored procedure

    - by Grayson Mitchell
    I simply want a stored procedure that calculates a unique id and inserts it. If it fails it just calls itself to regenerate said id. I have been looking for an example, but cant find one, and am not sure how I should get the sp to call itself, and set the appropriate output parameter. I would also appreciate someone pointing out how to test this sp also. ALTER PROCEDURE [dbo].[DataContainer_Insert] @SomeData varchar(max), @DataContainerId int out AS BEGIN -- SET NOCOUNT ON added to prevent extra result sets from -- interfering with SELECT statements. SET NOCOUNT ON; BEGIN TRY SELECT @UserId = MAX(UserId) From DataContainer INSERT INTO DataContainer (UserId, SomeData) VALUES (@UserId, SomeData) SELECT @DataContainerId = scope_identity() END TRY BEGIN CATCH --try again exec DataContainer_Insert @DataContainerId, @SomeData END CATCH END

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  • Tune cindent "switch" indentation

    - by Don Reba
    Nemerle is a C-like language and mostly works very well with cindent. However, its construct analogous to switch is called match: match (x) { | "Hello World" => ... | _ => ... } Is it possible to get the cinoptions for switch statements to apply to this construct, instead? Maybe there is a regular expression I can set somewhere. If not, can I get the vertical bars to align with the braces another way?

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  • Reducing lag when downloading large amount of data from webpage

    - by Mahir
    I am getting data via RSS feeds and displaying each article in a table view cell. Each cell has an image view, set to a default image. If the page has an image, the image is to be replaced with the image from the article. As of now, each cell downloads the source code from the web page, causing the app to lag when I push the view controller and when I try scrolling. Here is what I have in the cellForRowAtIndexPath: method. NSString * storyLink = [[stories objectAtIndex: storyIndex] objectForKey: @"link"]; storyLink = [storyLink stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]]; NSString *sourceCode = [NSString stringWithContentsOfURL:[NSURL URLWithString:storyLink] encoding:NSUTF8StringEncoding error:&error]; NSString *startPt = @"instant-gallery"; NSString *startPt2 = @"<img src=\""; if ([sourceCode rangeOfString:startPt].length != 0) { //webpage has images // find the first "<img src=...>" tag starting from "instant-gallery" NSString *trimmedSource = [sourceCode substringFromIndex:NSMaxRange([sourceCode rangeOfString:startPt])]; trimmedSource = [trimmedSource substringFromIndex:NSMaxRange([trimmedSource rangeOfString:startPt2])]; trimmedSource = [trimmedSource substringToIndex:[trimmedSource rangeOfString:@"\""].location]; NSURL *url = [NSURL URLWithString:trimmedSource]; NSData *data = [NSData dataWithContentsOfURL:url]; UIImage *image = [UIImage imageWithData:data]; cell.picture.image = image; Someone suggested using NSOperationQueue. Would this way be a good solution? EDIT: - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *MyIdentifier = @"FeedCell"; LMU_LAL_FeedCell *cell = [tableView dequeueReusableCellWithIdentifier:MyIdentifier]; if (cell == nil) { NSArray *nib = [[NSBundle mainBundle] loadNibNamed:@"LMU_LAL_FeedCell" owner:self options:nil]; cell = (LMU_LAL_FeedCell*) [nib objectAtIndex:0]; } int storyIndex = [indexPath indexAtPosition: [indexPath length] - 1]; NSString *untrimmedTitle = [[stories objectAtIndex: storyIndex] objectForKey: @"title"]; cell.title.text = [untrimmedTitle stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]]; CGSize maximumLabelSize = CGSizeMake(205,9999); CGSize expectedLabelSize = [cell.title.text sizeWithFont:cell.title.font constrainedToSize:maximumLabelSize]; //adjust the label to the the new height. CGRect newFrame = cell.title.frame; newFrame.size.height = expectedLabelSize.height; cell.title.frame = newFrame; //position frame of date label CGRect dateNewFrame = cell.date.frame; dateNewFrame.origin.y = cell.title.frame.origin.y + cell.title.frame.size.height + 1; cell.date.frame = dateNewFrame; cell.date.text = [self formatDateAtIndex:storyIndex]; dispatch_queue_t someQueue = dispatch_queue_create("cell background queue", NULL); dispatch_async(someQueue, ^(void){ NSError *error = nil; NSString * storyLink = [[stories objectAtIndex: storyIndex] objectForKey: @"link"]; storyLink = [storyLink stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]]; NSString *sourceCode = [NSString stringWithContentsOfURL:[NSURL URLWithString:storyLink] encoding:NSUTF8StringEncoding error:&error]; NSString *startPt = @"instant-gallery"; NSString *startPt2 = @"<img src=\""; if ([sourceCode rangeOfString:startPt].length != 0) { //webpage has images // find the first "<img src=...>" tag starting from "instant-gallery" NSString *trimmedSource = [sourceCode substringFromIndex:NSMaxRange([sourceCode rangeOfString:startPt])]; trimmedSource = [trimmedSource substringFromIndex:NSMaxRange([trimmedSource rangeOfString:startPt2])]; trimmedSource = [trimmedSource substringToIndex:[trimmedSource rangeOfString:@"\""].location]; NSURL *url = [NSURL URLWithString:trimmedSource]; NSData *data = [NSData dataWithContentsOfURL:url]; UIImage *image = [UIImage imageWithData:data]; dispatch_async(dispatch_get_main_queue(), ^(void){ cell.picture.image = image; }); }) //error: expected expression } return cell; //error: expected identifier } //error extraneous closing brace

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  • Java import from other directory

    - by heldopslippers
    Hi People! I am building a Enterprise Service Bus (ESB) with Java. I won't get into details But I have to build multiple servers who make use of the same classes. I have the following directory structure: /server1 -Main.java /server2 -Main.java /com -Database.java I want to import from the Main.java class for example the Database.class. But of course the following statements won't work: import com.Database; I am working with the javac compiler in the command line (so not eclipse stuff or whatever. just TextMate and the command line). And I found a (pretty stupid) solution by creating a symbolic link in the servers to the com directory. But that is not really an ideal solution. Does anybody have a better one?? THANXS in advanced!! :D

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  • Need help with Excel 2007 Formula - Many to many update

    - by Monica
    I'm experienced with database development, but not so much with Excel. I'm looking for help writing an Excel formula that would help my client's spreadsheet behave like a database. This is what I'm looking to do, but I can't figure out how to write it in Excel 2007: "If Q4 (on sheet 2) contains A2 (on sheet 1), append A1 (on sheet 1) with Q5 (on sheet 2)" Some factors: 1) This formula may find multiple instances of A2, so it should not stop after finding the first match 2) The values, as they are created in A1, should be separated with comma and space 3) This is a many to many relationship between Q4 and A2 Thanks for any help with this. I've tried vlookups, match, if statements, but they all fall short in one way or another.

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  • mysql - check if data exists across multiple tables

    - by Dd Daym
    I am currently running this query inside MySQL to check if the specified values exists within the table associated with them. SELECT COUNT(artist.artist_id), COUNT(album.album_id), COUNT(tracks.track_id) FROM artist, album, tracks WHERE artist.artist_id = 320295 OR album.album_id = 1234 OR tracks.track_id = 809 The result I get from running this query is all 1, meaning that all the statements after the WHERE clause is true. To further check the query's reliability, I changed the tracks.track_ = 809 to 802, which I know does not match. However the results displayed are still all 1, meaning that they were all successfully matched even when I purposefully inserted a value which would not have matched. How do I get it to show 1 for a match and 0 for no matches within the same query? EDIT: I have inserted an image of the query running

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  • Create categorial variable in R based on range

    - by Stedy
    I have a dataframe with a column of integers that I would like to use as a reference to make a new categorical variable. I want to divide the variable into three groups and set the ranges myself (ie 0-5, 6-10, etc). I tried cut but that divides the variable into groups based on a normal distribution and my data is right skewed. I have also tried to use if/then statements but this outputs a true/false value and I would like to keep my original variable. I am sure that there is a simple way to do this but I cannot seem to figure it out. Any advice on a simple way to do this quickly?

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  • [c++] Resolving namespace conflicts

    - by Kyle
    I've got a namespace with a ton of symbols I use, but I want to overwrite one of them: external_library.h namespace lottaStuff { class LotsOfClasses {}; class OneMoreClass {}; }; my_file.h using namespace lottaStuff; namespace myCustomizations { class OneMoreClass {}; }; my_file.cpp using myCustomizations::OneMoreClass; int main() { OneMoreClass foo; // error: reference to 'OneMoreClass' is ambiguous return 0; } How do I get resolve the 'ambiguous' error without resorting to replacing 'using namespace lottaStuff' with a thousand individual "using xxx;" statements?

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  • Problem with optional arguments in C #defines

    - by imikedaman
    Hi, I'm having a problem with optional arguments in #define statements in C, or more specifically with gcc 4.2: bool func1(bool tmp) { return false; } void func2(bool tmp, bool tmp2) {} #define CALL(func, tmp, ...) func(tmp, ##__VA_ARGS__) int main() { // this compiles CALL(func2, CALL(func1, false), false); // this fails with: Implicit declaration of function 'CALL' CALL(func2, false, CALL(func1, false)); } That's obviously a contrived example, but does show the problem. Does anyone know how I can get the optional arguments to "resolve" correctly? Additional information: If I remove the ## before _VA_ARGS_, and do something like this: bool func2(bool tmp, bool tmp2) { return false; } #define CALL(func, tmp, ...) func(tmp, __VA_ARGS__) int main() { CALL(func2, false, CALL(func2, false, false)); } That compiles, but it no longer works with zero arguments since it would resolve to func(tmp, )

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  • Cannot to change my root password on Xenserver

    - by Michlaou
    I try to change my root password on my Xenserver 6.0. I follow these steps: enter boot: menu.c32 selecet xe-serial and press tab add "single" before the 2nd triple hyphens and i press enter. I have that: mboot.c32 /boot/xen.gz com1=115200,8n1 console=com1, vga mem=1024G dom0_max_vcpus4 dom0_mem=752M lowmem_emergency_pool=1M crashkernel=64M@32M single --- /boot/vmlinuz-2.6-xen root=LABEL=root-rodraxar ro console=tty0 xencons=hvc console=hvc0 --- /boot/initrd-2.6-xen.img I have commande on the screen and it's stop at: ext3-fs: monted filesystem with ordered data mode. Can you help me?

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