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• Why use MySQL over flatfiles?

  - by John

  A friend and I were debating about whether he should use MySQL or a flatfile database for his website's backend. I told him to go with MySQL because it was structured, held records well, and was consistent. He on the other hand said that he would rather go for speed. Reading files is a lot quicker than connecting to MySQL and it made me wonder whether he was right. For example, why not just create a folder for each table, like so: users/ groups/ posts/, within the folders have the files named by ID (1, 2, 3) and then for the data use a format like so: username: John\npassword: e2fc714c4727ee9395f324cd2e7f331f\nemail: [email protected]? In other words, what are the advantages of MySQL over flatfiles?

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• Split or save a subset of a ESRI Shape SHP file to a new file?

  - by Eric Palakovich Carr

  I'm working with shape files in GeoDjango. Right now I'm trying to write a test for code that loads in a shape file and saves it to a database. The shape file currently has a feature count of 64,118. I'd like to reduce this to a handful so the test can quickly load it and confirm everything is right. Since shape files aren't in a text format, is there a free application or library I can use to pluck out a handful of features and save them to a new file? I should mention I don't have a license nor access to any of the ESRI product line.

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• What's the best way to handle web.config file versions in ASP.Net?

  - by MusiGenesis

  I have an ASP.Net web site (ASPX and ASMX pages) with a single web.config file. We have a development version and a production version. Over time, the web.config files for development and production have diverged substantially. What is the best practice for keeping both versions of web.config in source control (we use Tortoise SVN but I don't think that matters)? It seems like I could add the production web.config file with a name like "web.config.prod", and then when we turnover all the files we would just add the step of deleting the existing web.config and renaming web.config.prod to web.config. This seems hackish, although I'm sure it would work. Is there not some mechanism for dealing with this built in to Visual Studio? It seems like this would be a common issue, but I haven't found any questions (with answers) about this.

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• Help with writing a php code that repeats itself per array value

  - by Mohammad

  Hi I'm using Closure Compiler to compress and join a few JavaScript files the syntax is something like this; $c = new PhpClosure(); $c->add("JavaScriptA.js") ->add("JavaScriptB.js") ->write(); How could I make it systematically add more files from an array lets say for each array element in $file = array('JavaScriptA.js','JavaScriptB.js','JavaScriptC.js',..) it would execute the following code $c = new PhpClosure(); $c->add("JavaScriptA.js") ->add("JavaScriptB.js") ->add("JavaScriptC.js") ->add ... ->write(); Thank you so much in advance!

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• Generating an array of functions?

  - by Wordpressor

  I have a few PHP files filled with multiple functions. Let's call them functions1.php, functions2.php, functions3.php: function function_something( $atts ) { extract( something_atts( array( 'foo' => 'bar', 'bar' => 'foo, ), $atts ) ); return 'something'; } I'm loading these files within all_functions.php like this: require_once('functions1.php'); require_once('functions2.php'); require_once('functions3.php'); I'm wondering if it's possible to create an array of all these functions and their attributes? I'm thinking about something like: function my_functions() { require_once('functions1.php'); require_once('functions2.php'); require_once('functions3.php'); } And then some foreach loop, but I'm not sure how should it look like after all. I know this probably looks tricky, but I'm just curious if I'm able to list all my WordPress shortcodes without PHP's Reflection API :)

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• reading unformatted fortran file in matlab - which precision?

  - by Griff

  I have just written out a file: real*8 :: vol_cel real*8, dimension(256,256,256) :: dense [... some operations] open(unit=8,file=fname,form="unformatted") write(8)dense(:,:,:)/vol_cell close(8) dense and vol_cell are real*8 variables. My code to read this in in Matlab: fid = fopen(fname,'r'); mesh_raw = fread(fid,256*256*256,'double'); fclose(fid); The min and max values clearly show that it is not reading it in correctly (Min is 0 and max is a largish positive real*8). min = 3.3622e+38 max = -3.3661e+38 What precision do I need to set in Matlab to make it read in the unformatted Fortran file? A somewhat related question: This Matlab code I am using reads binary files OK but not unformatted files. Though I am generating this new data on my Mac OSX using gfortran. It doesn't recognize form="binary" so I can't do it that way. Do I need to add some library?

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• jQuery fadeIn IE Png Issue when loading from external

  - by Adam Stone

  I am loading data from external html files within my domain into a div on my webpage using a load content method in jQuery. I take the div out of the new page whilst hiding the div in the current page by fading this out and fading the new one in. There is a png image in both of these divs and it is creating horrid black blobs in IE, works fine in other browsers but due to IEs inability to process multiple filters its making a mess. I tried using the unit png fix to no avail, does anyone have any fixes or ideas to help keep my pngs looking nice during this transition? i46.tinypic.com/t9dtvr.jpg this is a screenshot of the problem, cheers also discovered that the png that is on the page originaly (before loading anything new) fades in and out perfectly using the unit png fix but stuff loading in and then back out from external files doesnt. Ive added the fix to those pages too but that doesnt work either.

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• ASP.NET plug-in architecture, settings problem

  - by Xaqron

  I want to divide business layer (BLL) of an asp.net application into multiple components. Each component is a .NET class library which is compiled as a standalone DLL. These components should have their own configuration files. For example "MyNameSpace.Users.dll" contains classes about users of the website and there's a password policy to check if password length is at least x characters. When webmaster edits the config file of this DLL and set x to y then component (DLL) should use new value (y) in the future and enforce passwords to be at least y characters. I want each component as a single project and compile them separaely (and not to put all projects in a solution in Visual Studio), and put the DLLs of these libraries into the "Bin" folder of my ASP.NET application. Is it possible ? Where should I put these config files ?

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• SQL Server 2008 automated database drop, create and fill

  - by lox

  For the database in my project I have a drop/create script for the database, a script for creating tables and SPs and an Access 2003 .mdb file with some exported values. To set up the database from scratch I can use my SQL management studio to first run one script, then the other and lastly manually run the sort of tedious import task. But I would like to do this as automated as possible. Hopefully something like putting the three files in a folder along with a fourth script to execute. Looking something like: run script "dropcreate.sql" run script "createtables.sql" import "values.mdb" How is this done? I hope to avoid using SSIS and the like. The tricky this is of course the import of data, where I can't seem to find a simple way. It is also important that the files a left as they are and not embedded into anything.

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• samba windows gvim & "READ ERRORS"

  - by l.thee.a

  I have a samba server on my embedded box. I was planning to use it to edit files easily. However when I open files on my windows machine, I get read errors. I have tried textpad, gvim and kate(andLinux). On gvim I first get "write error in swap file" and it is replaced by "[READ ERRORS]". If I access the same file through pyNeighborhood (ubuntu) I can read/write/delete etc. Samba security is set to share and guest user is root. Also if I move the file to my ubuntu samba server, I get no problems. Any ideas? PS: I am using smbd 3.0.25b.

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• How do I make a temporary backup of the local datastore in the AppEngine SDK for MacOSX

  - by Johan Carlsson

  How do I make a temporary backup of the local datastore in the AppEngine SDK for MacOSX And where are the files located?

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• How to log slow queries in shared hosting MySQL?

  - by tomaszs

  I have a shared hosting where I have my website and MySQL database. I've installed a open source script for statistics (phpMyVisites) and it started to work very slow lately. It's written using some kind of framework and has many PHP files. I know that to find slow queries I can use slow query log functionality in MySQL. But on this shared hosting I can not use this method because I can not change my.cnf. I don't want to change my statistics script to other and I don't want to mess around with all files of this script to find out where to put diagnostics code to log queries manually. I would like to do it without changes in PHP code. So my question is: How to log slow queries in these coditions?: Can't change my.cnf to enable slow query log Can't change statistics script to other Don't know how scrpt is written and where mysql commands are issued Can't ask my provider for slow query log Is there any method to do this in simple, easy, fast way?

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• How do i make an installer instead of a crash (.NET)

  - by acidzombie24

  My situation is Using .NET 3.5 Using SDL.NET Need to make a friendly installer or warning system. Chances are the user will be on XP (.NET 1.1). If possible can i do something to let the user know he needs to update to 3.5? Maybe have a yes/no dialog which downloads and install the .NET runtimes for him? Now how do i detect if the user has sdl.net installed (chances are its in program files/sdldotnet) and let them know they need sdl.net runtime and have a yes/no dialog that brings them to http://sourceforge.net/projects/cs-sdl/files/ The problem i have mostly is how to make the app not outright crash and how to download 3.5 .NET runtime if it is possible.

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• trying to find if a file exists in a given path

  - by Yeshwanth Venkatesh

  I am fairly new to java and I am trying to find if the file specified in the LINUX path exists. private void validateFilePath(String filePath) { File dir = new File(filePath); if(dir.exists()){ System.out.println("File exists in the path " + dir); setTARGET_IMG_DIR("filePath"); return; }else{ System.out.println("File does not exists in the path: " + dir); return; } } The dir.exists works fine if I give a absolute path from my root like this /Users/yv/Documents/Eclipse-workspace/InputParser/bin/test.txt but if I give a relative path like test.txt or /InputParser/bin/test.txt it says files does not exists. I am planing on creating a jar of this projects and hence this should work with both relative path(files in the same directory) and absolute path from the root. How can I handle this ? Is it possible to search for the absolute path of that file from the root and append it to the file name ?

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• How do I backup my C++ Builder component installation?

  - by Gary Benade

  Hi I finally have my c++ Builder 2010 installation the way I want it, with all my components upgraded and installed. (touch wood) I have been working with c++builder since version 1 and I know from countless previous traumatic experiences that this state of affairs could change in an instant. I would like to backup the installation and component set. Is there a way to do this? A tool perhaps? A menu command that I have maybe missed all these years? I don't want to have to reinstall all the components from the bpl source again. I make nightly backup images of my entire drive, I would like to do this for c++builder only if possible. If it's a matter of simply copying files, which files would I need to copy? Are there entries in the registry that would need to be restored? Thanks in advance for any thoughts and suggestions

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• vs10 intellisense for jQuery

  - by justSteve

  I'm not able to get intellisense to work with javascript/jquery code in vs10. Not even getting highlighted opening/closing bracket and parens, much less autocomplete. In VS08 we had to install a patch to get intellisense for jquery. VS10 doesn't need that patch to support -vsdoc files. There was a bug in 08's intellisense that, if any of a project's included .js files had an error, we'd lose intellisense for javascript. That was supposed to be fixed in vs10. What the current set of troubleshooting steps to enable intellisense for VS10? thx

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• Why Does Piping Binary Text to the Screen often Horck a Terminal

  - by Alan Storm

  Imaginary Situation: You’ve used mysqldump to create a backup of a mysql database. This database has columns that are blobs. That means your “text” dump files contains both strings and binary data (binary data stored as strings?) If you cat this file to the screen $ cat dump.mysql you’ll often get unexpected results. The terminal will start beeping, and then the output finishes scrolling by you’ll often have garbage chacters entered on your terminal as through you’d typed them, and sometimes your prompts and anything you type will be garbage characters. Why does this happen? Put another way, I think I’m looking for an overview of what’s actually happening when you store binary strings into a file, and when you cat those files, and when the results of the cat are reported to the terminal, and any other steps I’m missing.

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• FTP - 530 Sorry, the maximum number of clients...?

  - by aSeptik

  Hi All! i know this is not a properly code question, but who of you don't use an FTP client!? ;-) Ok my problem is that my FTP work great, exept when i upload files on a particular client server! on this server happen that some files are uploaded fine and others not, they stop while uploading at half of it's size, then this error is displayed: 530 Sorry, the maximum number of clients (4) from your host are already connected. Unable to make a connection. Please try again. Obviously this is not true, i'm the only one that is uploading! Anyone had the same experience with this!? PS: i have tried many different FTP, all display the same error or just hung up! Thank's

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• How to change the color of the navigation bar in more than one table view controller

  - by Dctennisboy

  I am trying to figure out how to change the color of the table view navigation bar in multiple table views. The table views are all connected to a navigation controller. For example, I want one navigation bar to be blue, but another to be red. I have tried the code below in the AppDelegate.m file, but it just changes all the navigation bars to the same color. Is there anywhere else I could place this code to change the color in specific places. I've heard that I need to create new files, but I don't know where to place the code, or what code to use in the new files. I am somewhat new to this. Any suggestions would be greatly appreciated![[UINavigationBar appearance] setBarTintColor:[UIColor orangeColor]];

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• javac - differences between classpath and sourcepath options

  - by Alex

  Hi, I read the Sun documentation and a lot of Q/A on SO but I'm still a little bit confuse regarding the differences between the javac options -cp and -sourcepath. Let say I have this directory structure: c:\Java\project1\src (where the .java source files are) c:\Java\project1\bin (where the .class will be or are already) The class source MainClass.java is in a package "com.mypackage" and the directory structure is ok in src. I'm in the project1 directory. I run c:\Java\Project1\javac -d bin -sourcepath src src/com/mypackage/MainClass.java or c:\Java\Project1\javac -d bin -classpath src src/com/mypackage/MainClass.java and I obtain the same result. In verbose mode, the search path for source files is src in both cases. If anybody could help me figure out the specifics of these options, it would be great. Thank you.

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• java.util.zip - ZipInputStream v.s. ZipFile

  - by lucho

  Hello, community! I have some general questions regarding the java.util.zip library. What we basically do is an import and an export of many small components. Previously these components were imported and exported using a single big file, e.g.: <component-type-a id="1"/> <component-type-a id="2"/> <component-type-a id="N"/> <component-type-b id="1"/> <component-type-b id="2"/> <component-type-b id="N"/> Please note that the order of the components during import is relevant. Now every component should occupy its own file which should be externally versioned, QA-ed, bla, bla. We decided that the output of our export should be a zip file (with all these files in) and the input of our import should be a similar zip file. We do not want to explode the zip in our system. We do not want opening separate streams for each of the small files. My current questions: Q1. May the ZipInputStream guarantee that the zip entries (the little files) will be read in the same order in which they were inserted by our export that uses ZipOutputStream? I assume reading is something like: ZipInputStream zis = new ZipInputStream(new BufferedInputStream(fis)); ZipEntry entry; while((entry = zis.getNextEntry()) != null) { //read from zis until available } I know that the central zip directory is put at the end of the zip file but nevertheless the file entries inside have sequential order. I also know that relying on the order is an ugly idea but I just want to have all the facts in mind. Q2. If I use ZipFile (which I prefer) what is the performance impact of calling getInputStream() hundreds of times? Will it be much slower than the ZipInputStream solution? The zip is opened only once and ZipFile is backed by RandomAccessFile - is this correct? I assume reading is something like: ZipFile zipfile = new ZipFile(argv[0]); Enumeration e = zipfile.entries();//TODO: assure the order of the entries while(e.hasMoreElements()) { entry = (ZipEntry) e.nextElement(); is = zipfile.getInputStream(entry)); } Q3. Are the input streams retrieved from the same ZipFile thread safe (e.g. may I read different entries in different threads simultaneously)? Any performance penalties? Thanks for your answers!

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• Drag-and-drop file upload in Chromium?

  - by Zarel

  Drag-and-drop file uploading can be done in Firefox 3.6 by using FileReader: http://stackoverflow.com/questions/2121018/native-drag-drop-file-upload-in-firefox-3-6 However, Google recently released an update for Gmail that allowed drag-and-drop file uploading in Chromium as well as Firefox, and Chromium does not have FileReader. I'm using the latest Chromium nightly, and it can drag-drop upload files, while not supporting FileReader. I've seen someone mention that drag-drop uploading can be possible by dragging onto an <input type="file" />, but that can only support one file at a time, while Gmail's uploader can handle multiple files being dragged onto it, so that's clearly not what they're doing. So the question is, how do they do it? How do you support Chromium for HTML5 file uploading?

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• how to iterate over non-English file names in PHP

  - by Sabya

  I have a directory which contains several files, many of which has non-english name. I am using PHP in Windows 7. I want to list the filename and their content using PHP. Currently I am using DirectoryIterator and file_get_contents. This works for English files names but not for non-English (chinese) file names. For example, I have filenames like "?? ?? ?????????.eml", "hello ??????.eml". DirectoryIterator is not able to get the filename using ->getFilename() file_get_contents is also not able to open even if I hard code the filename in its parameter. How can I do it?

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• how to get the size of a C global array into an assembly program written for the avr architecture co

  - by johannes

  I have a .c file with the following uint8_t buffer[32] I have a .S file where I want to do the following cpi r29, buffer+sizeof(buffer) The second argument for cpi muste be an imidiate value not a location. But unfortunetly sizeof() is a c operator. Both files, are getting compiled to seperate object files and linked afterwards. If I do avr-objdump -x file.c. Amongst other things, I get the size of the buffer. So it is already available in the object file. How do I access the size of the buffer in my assembly file at compile time?

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• Creating pdf file using php

  - by pavun_cool

  Hi all, Can someone suggest me which tutorial I can follow to get thorough knowledge about creating pdf files using php? Thanks

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