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  • Why does File::Find finished short of completely traversing a large directory?

    - by Stan
    A directory exists with a total of 2,153,425 items (according to Windows folder Properties). It contains .jpg and .gif image files located within a few subdirectories. The task was to move the images into a different location while querying each file's name to retrieve some relevant info and store it elsewhere. The script that used File::Find finished at 20462 files. Out of curiosity I wrote a tiny recursive function to count the items which returned a count of 1,734,802. I suppose the difference can be accounted for by the fact that it didn't count folders, only files that passed the -f test. The problem itself can be solved differently by querying for file names first instead of traversing the directory. I'm just wondering what could've caused File::Find to finish at a small fraction of all files. The data is stored on an NTFS file system.

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  • Why did File::Find finish short of completely traversing a large directory?

    - by Stan
    A directory exists with a total of 2,153,425 items (according to Windows folder Properties). It contains .jpg and .gif image files located within a few subdirectories. The task was to move the images into a different location while querying each file's name to retrieve some relevant info and store it elsewhere. The script that used File::Find finished at 20462 files. Out of curiosity I wrote a tiny recursive function to count the items which returned a count of 1,734,802. I suppose the difference can be accounted for by the fact that it didn't count folders, only files that passed the -f test. The problem itself can be solved differently by querying for file names first instead of traversing the directory. I'm just wondering what could've caused File::Find to finish at a small fraction of all files. The data is stored on an NTFS file system. Here is the meat of the script; I don't think including DBI stuff would be relevant since I reran the script with nothing but a counter in process_img() which returned the same number. find(\&process_img, $path_from); sub process_img { eval { return if ($_ eq "." or $_ eq ".."); ## Omitted querying and composing new paths for brevity. make_path("$path_to\\img\\$dir_area\\$dir_address\\$type"); copy($File::Find::name, "$path_to\\img\\$dir_area\\$dir_address\\$type\\$new_name"); }; if ($@) { print STDERR "eval barks: $@\n"; return } } And here is another method I used to count files: count_images($path_from); sub count_images { my $path = shift; opendir my $images, $path or die "died opening $path"; while (my $item = readdir $images) { next if $item eq '.' or $item eq '..'; $img_counter++ && next if -f "$path/$item"; count_images("$path/$item") if -d "$path/$item"; } closedir $images or die "died closing $path"; } print $img_counter;

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  • Mercurial Branching Model for task features

    - by Stan
    My development env: Windows 7, TortoiseHg, ASP.NET 4.0/MVC3 Test branch: code on test server Prod branch: code on production server This is my current branching model. The reason to branch out every task (feature) is because some features go to live slower. So in above graph, task 1 finished earlier (changeset #5), and merge into test branch for testing. However, due to bug or modification of original request, changesets #10, #12 have been made. While task 2 has finished testing #8 and pushed to live #9 already. My problem is every time when modifying task branch (like #10, #12), I have to do another merge to test branch (#11, #13), this makes the graph very messy. Is there any way to solve this issue? Or any better branching model?

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  • Tools to update tables in SQL server 2000/2005

    - by Stan
    Is there any handy tool that can make updating tables easier? Usually I got an Excel file with the original value in one column and new value in another column. Then I write a formula in Excel to create the 'update' statement. Is there any way to simplify the updating task? I believe the approach in SQL server 2000 and 2005 would be different, so could we discuss them both? Thanks.

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  • What is Visual C++ 2005 Service Pack 1 Redistributable Package for?

    - by Stan
    I am using Poco library and when running my program on other machines which don't have VS2005 installed, I have to install "Microsoft Visual C++ 2005 Service Pack 1 Redistributable Package ATL Security Update", otherwise the the program will give error when launching. What is this redistributable package for? Is there any way to avoid installing this but still let my program running well? Also, there're so many vcredist_x86.exe out there. How can I know which one is necessary or not when getting error? Thanks.

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  • Auto-complete editor for SQL statement

    - by Stan
    Is there any plugings or text editor to auto-complete SQL statement? I am using SQL Server Management Studio (ssms) 90% of time, but most of time I have to type SELECT FROM WITH(NOLOCK) WHERE blahblah. Trying to find a more efficient way. Thanks.

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  • version control projects in eclipse

    - by Stan
    Say I have eclipse installed in office and home. Both eclipse are 3.5 but may have slightly difference, like plugins version. I'd like to commit the code to online repo when get off work and then checkout at home. What would be a possible solution? github? sourceforge? Are they free? Would those slightly difference in eclipse cause any problem? Since I might commit whole project folder which consist some configurations. Can the community explain a bit or suggest some keyword? I will look up more online. Thanks.

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  • Any ideas why this wont print out

    - by stan
    Revising for php and cant seem to get this to print the values out that i want Any ideas? Thanks <form action="revision.php" method="GET"> <input type=“text” name=“number[]”/> <input type=“text” name=“number[]”/> <input type=“text” name=“number[]”/> <input type=“text” name=“number[]”/> <input type=“text” name=“number[]”/> <input type="Submit" name="Calcuate"/> </form> <?php if(isset($_GET['number'])){ $amount = count($number); for($i=0; $i < $amount; $i++){ echo $number[$i]; } } ?>

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  • SQL Server 2000, how to automate import data from excel

    - by Stan
    Say the source data comes in excel format, below is how I import the data. Converting to csv format via MS Excel Roughly find bad rows/columns by inspecting backup the table that needs to be updated in SQL Query Analyzer truncate the table (may need to drop foreign key constraint as well) import data from the revised csv file in SQL Server Enterprise Manager If there's an error like duplicate columns, I need to check the original csv and remove them I was wondering how to make this procedure more effecient in every step? I have some idea but not complete. For step 2&6, using scripts that can check automatically and print out all error row/column data. So it's easier to remove all errors once. For step 3&5, is there any way to automatically update the table without manually go through the importing steps? Could the community advise, please? Thanks.

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  • Recurssion Question : Revision

    - by stan
    My slides say that A recurssive call should always be on a smaller data structure than the current one There must be a non recurssive option if the data structure is too small You need a wrapper method to make the recurssive method accessible Just reading this from the slides makes no sence, especially seeing as it was a topic from before christmas! Could anyone try and clear up what it means please? Thank you

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  • php - Loop output in two diffrent divs?

    - by Stan
    I want to output my sql rows on each side of a line, without breaking the line. Forexample the html/css code i would like to end up with is something like this: <div id='container'> <div style='float:left;'> Even loops here.. </div> <div id='line' style='float:left;'> </div> <div style='float:right;'> Uneven loops here.. </div> <div style='clear:both;'></div> </div> Is there a way to output the sql rows in two diffrent divs?

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  • Revision, Quadratic Time

    - by stan
    I am not sure if you can post revision programming questions in here but i am stuck with some algorithms revision If an algorithm is quadratic it takes time proportional to the number of n^2 ? So if the slides say its almost 1/2 the square of n records is this the same as saying (n^2 * 0.5) Thanks

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