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• calculated column or stored procedure or just php function needed ?

  - by mcgrailm

  I have an order table in MySQL database, having a field/column which stores the date timestamp of when the order was placed. I need to calculate when the order must be shipped. I could probably figure out how to write a function to calculate the ship date and call that when ever needed but I think, not sure it may make more sense to have the shipdate as a calculated column. That being said, I have never used a stored procedure or created a calculated field. The later I think would be best but again not sure. I used to make calculated field all the time in FMP but I've gotten away from that program.

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• Best practices for extending third party databases?

  - by Eric Watkins

  I have a situation where our developers extended a Third party database (MS SQL) by adding tables, views, stored procedures, and functions. Recently when the vender issued updates to the database they dropped all of our custom objects. The question now is what are some best practices that will allow us to extend the third party database but keep our objects safe from future updates? My first thought is to create a separate database but then I’m stuck with fully qualifying all the references back to the original database which may cause issues promoting database changes from test to production.

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• How to lock the Screen customly? Just like WaveSecure in Android

  - by HackNone

  I want to do a demo just like WaveSecure, which win Android Develop Challenge 2 with a third place. Now I have a problem in locking the screen customly, so I want to know how WaveSecure achieve its locking function, as the following picture show: http://goo.gl/XlPP When the mobile is locked, WaveSecure can require customer to input their own password. So I think WaveSecure must replace Android's original locking function. And I also google it, but I didn't find anything helpful. I only find two packages may be helpful. They are: android.app.KeyguardManager android.os.PowerManager But after I reading the Android Docs, I still can't have an idea on it. Can you help me? Thx:)

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• How to become MCT

  - by Incognito

  Hi, Are there any MCTs here. Please let us know the path to it. I have done some research on it, but would be interesting to know that from first hands. Or may be someone also wants to pass for MCT can share some experience. I can see in requirements Meet MCT competency requirements for each course they deliver. Administer course evaluations to every student and maintain high customer-satisfaction scores. New MCTs must deliver at least one Microsoft course within their first year as an MCT. At various times during the program year. I am ok with the first point (MCPD Enterprise, planning for CopmTIA shortly), but includes the last 2 points? Do I need to find some training centers to have agreement with them or ... Thank you.

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• Custom Expression in Linq-to-Sql Designer

  - by csharpnoob

  According to Microsoft: http://msdn.microsoft.com/de-de/library/system.data.linq.mapping.columnattribute.expression.aspx It's possible to add expression to the Linq-to-SQL Mapping. But how to configure or add them in Visual Studio in the Designer? Problem, when I add it manual to thex XYZ.designer.cs it on change it will be lost. //------------------------------------------------------------------------------ // <auto-generated> // This code was generated by a tool. // Runtime Version:2.0.50727.4927 // // Changes to this file may cause incorrect behavior and will be lost if // the code is regenerated. // </auto-generated> //------------------------------------------------------------------------------ This is generated: [Column(Name="id", Storage="_id", DbType="Int")] public System.Nullable<int> id { ... But i need something like this [Column(Name="id", Storage="_id", DbType="Int", Expression="Max(id)")] public System.Nullable<int> id { ... Thanks.

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• Vendor neutral SQL

  - by Sparafusile

  I'm currently working on a project for a web application that may be installed on several different servers with various software configurations. I want to make my application as flexible as possible by allowing the user to have various SQL servers installed. The problem is the SQL syntax used by any two server vendors does not match up. For a simple example, here is the same SELECT statement for MS SQL and MySQL: MS SQL - SELECT TOP 1 * FROM MyTable ORDER BY DateCreated DESC MySQL - SELECT * FROM MyTable ORDER BY DateCreated DESC LIMIT 1 Are there any standard way to abstract the statement creation for various vendors? Any online resources or books discussing this problem? Any hints or smart-alec remarks that I'd find useful? Further information: I'm writing my we application in vanilla ASP running on a Windows server. Thanks, Spara

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• Embeded video displayed over html

  - by Sergey Osypchuk

  Site which I am developing has a menu with drop downs, which is always on top and content is scrollable. Some of content are embeded video from various sources, which appears over top navigation. For youtube, we find solution by adding extra parameter: <param name="wmode" value="opaque" /> which resolve this issue, but what can i do to fix other video sources? You may see issue on this page - http://cars.topics.ua/ru/Topic/ViewGoodie/176768, please scroll down to see video positioned in front of html.

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• Java: IDE working well with Maven War overlays

  - by Thorbjørn Ravn Andersen

  We have a Java EE 6 web application which is fully mavenized, and we use the Maven "war overlay" facility to add customer specific files, and which currently runs in Glassfish 3.1. We have traditionally used Eclipse for development, but I have found that the combination of Maven processing and War deployments may not be optimal in terms of deployment times, and that the mavenization allows us to use any IDE with good Maven support. Therefore is Eclipse the best bet for our particular scenario (maven war overlays - glassfish, and debugging it) or is e.g. Netbeans or IntelliJ better? Please, back opinions with actual experiences, thanks.

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• Event trigger print using VC++

  - by santhosh kumar

  I have requirement to print log data continuously whenever an event trigger (Without showing print dialog, using default printer). Event may occur twice a second or minit or hour. Also i don`t bother about printer status. example out of paper, communication problem. Printer should not leave empty page. Example event 1 have 4 lines of data to print. While printing event 2, printer should print continuously instead of fetching next paper. My development environment VC++ and MFC.

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• How a servlet can get the absolute path to a file outside of the servlet?

  - by WolfmanDragon

  We have been using System.getProperties("user.dir") to get the location of a properties file. Now that it has been deployed on Tomcat(via servlet), the System call is giving the location as tomcat and not at the location at where the properties file exist. How can we call the the properties file dynamically? Given: Tomcat is not the only way the app will be deployed We have no control on where the app may be placed. Relative paths will not work as that Vista is being used and Vista breaks relative paths. This must work on all OS, including(but not limited to) Linux, XP and Vista. EDIT I implied this, but in case I was not clear enough, I have no way of knowing the path String.

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• Memory section handling error

  - by Basilevs

  I'm getting a link time error: WARNING: /home/gulevich/development/camac-fedorov/camac/linux/k0607-lsi6/camac-k0607-lsi6.o (.ctors): unexpected non-allocatable section. Did you forget to use "ax"/"aw" in a .S file? Note that for example <linux/init.h> contains section definitions for use in .S files. The code causing the error (assembly in C source): # if defined(__ELF__) # define __SECTION_FLAGS ", \"aw\" , @progbits" /* writable flag needed for ld ".[cd]tors" sections bug workaround) */ # elif defined(__COFF__) # define __SECTION_FLAGS ", \"dr\"" /* untested, may be writable flag needed */ # endif asm ( ".section .ctors" __SECTION_FLAGS "\n" ".globl __ctors_begin__\n" "__ctors_begin__:\n" ".previous\n" ); Is there any way to fix this? The idea is to put a varaible __ctors_begin__ at the beginning of a certain memory section. This code is a legacy that worked fine using a different build system and older compiler. Meaning of this assembly code explained in an answer to my previous question.

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• MySQL indexes: how do they work?

  - by bob-the-destroyer

  I'm a complete newbie with MySQL indexes. I have several MyISAM tables on MySQL 5.0x having utf8 charsets and collations with 100k+ records each. The primary keys are generally integer. Many columns on each table may have duplicate values. I need to quickly count, sum, average, or otherwise perform custom calculations on any number of fields in each table or joined on any number of others. I found this page giving an overview of MySQL index usage: http://dev.mysql.com/doc/refman/5.0/en/mysql-indexes.html, but I'm still not sure I'm using indexes right. Just when I think I've made the perfect index out of a collection of fields I want to calculate against, I get the "index must be under 1000 bytes" error. Can anyone explain how to most efficiently create and use indexes to speed up queries? Caveat: upgrading Mysql is not possible in this case. Using Navicat Light for db administration, but this app isn't required.

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• How can I catch a "catchable fatal error" on PHP type hinting?

  - by Ho

  Hello, I am trying to implement Type Hinting of PHP5 on one of my class, class ClassA { public function method_a (ClassB $b) {} } class ClassB {} class ClassWrong{} Correct usage: $a = new ClassA; $a->method_a(new ClassB); producing error: $a = new ClassA; $a->method_a(new ClassWrong); Catchable fatal error: Argument 1 passed to ClassA::method_a() must be an instance of ClassB, instance of ClassWrong given... May I know if it is possible to catch that error(since it says "catchable")? and if yes, how? Thank you.

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• How to retrieve a bigint from a database and place it into an Int64 in SSIS

  - by b0fh

  I ran into this problem a couple years back and am hoping there has been a fix and I just don't know about it. I am using an 'Execute SQL Task' in the Control Flow of an SSIS package to retrieve a 'bigint' ID value. The task is supposed to place this in an Int64 SSIS variable but I getting the error: "The type of the value being assigned to variable "User::AuditID" differs from the current variable type. Variables may not change type during execution. Variable types are strict, except for variables of type Object." When I brought this to MS' attention a couple years back they stated that I had to 'work around' this by placing the bigint into an SSIS object variable and then converting the value to Int64 as needed. Does anyone know if this has been fixed or do I still have to 'work around' this mess? edit: Server Stats Product: Microsoft SQL Server Enterprise Edition Operating System: Microsoft Windows NT 5.2 (3790) Platform: NT INTEL X86 Version: 9.00.1399.06

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• Are multiply-thrown Exceptions checked or runtime?

  - by froadie

  I have an Exception chain in which method1 throws an Exception to method2 which throws the Exception on to main. For some reason, the compiler forces me to deal with the error in method2 and marks it as an error if I don't, indicating that it's a checked Exception. But when the same Exception is thrown further down the line to main, the compiler allows me to ignore it and doesn't display any errors. The original Exception in method1 is a ParseException, which is checked. But the method has a generic throws Exception clause in the header, and the same object is thrown to method2, which has an identical throws Exception clause. When and how does this Exception lose the status of being checked / caught by the compiler? Edited to clarify: public void method1() throws Exception{ // code that may generate ParseException } public void method2() throws Exception{ method1(); //compiler error } public static void main(String[] args){ method2(); //ignored by compiler }

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• When Does the File Download Dialog Open? - HTML, Javascript

  - by sahs-i-muhterem

  Hello, I have a html page, and when I click a file link on the page, the file download dialog pops up, and this file dialog locks the page. I mean without selecting one of the choices(Open, Save, Cancel) I can't do anything on the page (which is normal). What I need is if javascript can check whether the page is locked or not. (or whether the file dialog is popped?) p.s. don't say "put an onclick event to the link", because the server may respond very slowly (like 30 seconds after clicking)

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• Java Spring 3.0 MVC Annotation vs COC. Whats the preferred method in the Java community?

  - by Athens

  I am using Spring's MVC framework for an application I'm hosting on Google's App Engine. So far, my controllers are registered via the @Controller annotation; however, prior to getting into Spring, I evaluated ASP.net MVC 2 which requires no configuration and is based on convention. Is convention over configuration (COC) the current and preferred method in the Java community to implement MVC with Spring. Also, this may be a result of my limited knowledge so far but i noticed that i could only instantiate my Controllers the required constuctor injection if i use the COC method via the ControllerClassNameHandlerMapping. For instance the following controller bean config will fail if i use the defaultannotationhandlermapping. <bean id="c" class="com.domain.TestController"> <constructor-arg ref="service" /> </bean> <bean id="service" class="com.domain.Service" /> My com.domain.TestController controller works fine if i use ControllerClassNameHandlerMapping/COC but it results in an error when i use defaultannotationhandlermapping/Annotations.

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• Php is stripping one letter "g" from my rtrim function but not other chars

  - by Chase

  I'm trying to trim some youtube URLs that I am reading in from a playlist. The first 3 work fine and all their URLs either end in caps or numbers but this one that ends in a lower case g is getting trimmed one character shorter than the rest. for ($z=0; $z <= 3; $z++) { $ythref2 = rtrim($tubeArray["feed"]["entry"][$z]["link"][0]["href"], '&feature=youtube_gdata'); The URL is http://www.youtube.com/watch?v=CuE88oVCVjg&feature=youtube_gdata .. and it should get trimmed down to .. http://www.youtube.com/watch?v=CuE88oVCVjg but instead it is coming out as http://www.youtube.com/watch?v=CuE88oVCVj. I think it may be the ampersand symbol but I am not sure.

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• Custom HTTP Request headers in HTML

  - by matsko

  Does anyone know if its possible to send out custom http REQUEST headers in HTML without having to use javascript (no xhr wrapper). Would it be possible to define them as meta tags within the head? Or may they be defined in the form somewhere? <meta http-equip="x-something-custom" name="custom value" /> this works, however, this is a RESPONSE header. What I need to set a REQUEST header. I'm not looking for setting hidden fields in forms, but actual raw http header manipulation with html tags. Is this possible?

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• UIWebView in multithread ViewController

  - by Tao

  I have a UIWebView in a viewcontroller, which has two methods as below. The question is if I pop out(tap back on navigation bar) this controller before the second thread is done, the app will crash after [super dealloc], because "Tried to obtain the web lock from a thread other than the main thread or the web thread. This may be a result of calling to UIKit from a secondary thread.". Any help would be really appreciated. -(void)viewDidAppear:(BOOL)animated { [super viewWillAppear:animated]; NSInvocationOperation *operation = [[NSInvocationOperation alloc] initWithTarget:self selector:@selector(load) object:nil]; [operationQueue addOperation:operation]; [operation release]; } -(void)load { [NSThread sleepForTimeInterval:5]; [self performSelectorOnMainThread:@selector(done) withObject:nil waitUntilDone:NO]; }

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• Security in API authentication

  - by Carlos

  We are in the process of revamping our server side API, and we need to manage security. Our current model requires that a credentials object (containing user, password, and pin) be included in each method invocation. Our development team, however, has decided that we should have session objects instead (which is fine by me), but the new credentials are just a GUID. This is very different from what I've seen in other APIs in our industry, so I'm a bit concerned about how secure the new model will be. I asked them if they had analyzed both alternatives, and they said they haven't. Does anyone know if there're any clear advantages, disadvantages, risks, etc. of using a set of credentials versus just one element (complex as it may be)? PS: the communication channel would be secure in either case, and it's separate from this particular topic

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• problems calling webservices through the https connection

  - by shivaji123

  i have done an application in BlackBerry which takes username & password with url link which is a link of server here i am calling some webservices but it is doing the connection in https so when i take the username password & url link & hit the login button it basically calls a webservice but then the application connecting to the webservice for ever & after some time i get the error massage something "unreported exception the application is not responding" .& then the application crashes out.Also i am using the SOAP client library . this is the piece of code synchronized (this) { try { _httpconn = (HttpConnection) Connector.open(url,Connector.READ_WRITE);//Connector.READ_WRITE //_httpconn =(StreamConnection)Connector.open(url); //System.out.println("-----------httpsconnection() PART--------------------"); _httpconn.setRequestMethod(HttpConnection.POST); //_httpconn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded"); //System.out.println("-----------httpsconnection() PART- **-------------------"); _httpconn.setRequestProperty("SOAPAction", Constants.EXIST_STR); //System.out.println("-----------httpsconnection() PART-REQUEST -------------------"); _httpconn.setRequestProperty("Content-Type", "text/soap+xml"); //System.out.println("-----------httpsconnection() PART- CONTENT-------------------"); _httpconn.setRequestProperty("User-Agent", "kSOAP/1.0"); //System.out.println("-----------httpsconnection() PART-USER Agent-------------------"); String clen = Integer.toBinaryString(input.length()); _httpconn.setRequestProperty("Content-Length", clen); //System.out.println("-----------httpsconnection() Content-Length--------------------"); _out = _httpconn.openDataOutputStream(); //System.out.println(input+"-----------input--------------------"+url); _out.write(input.getBytes()); _out.flush(); // may or may not be needed. //int rc = _httpconn.getResponseCode(); int rc = _httpconn.getResponseCode(); if(rc == HttpConnection.HTTP_OK) { isComplete = true; _in = _httpconn.openInputStream(); msg = new StringBuffer(); byte[] data = new byte[1024]; int len = 0; int size = 0; while ( -1 != (len = _in.read(data)) ) { msg.append(new String(data, 0, len)); size += len; } responsData = msg.toString(); System.out.println("-----------responsData "+responsData); } if(responsData!=null) isSuccessful = true; stop(); } catch (InterruptedIOException interrIO) { //errStr = "Network Connection hasn't succedded. "+ //"Please check APN setting."; UiApplication.getUiApplication().invokeLater(new Runnable() { public void run() { Status.show("Network Connection hasn't succedded. "+ "Please try again later."); } }); isComplete = true; System.out.println(interrIO); stop(); } catch (IOException interrIO) { System.out.println("-----------IO EXCEPTION--------- "+interrIO); //errStr = "Network Connection hasn't succedded. "+ //"Please check APN setting." ; UiApplication.getUiApplication().invokeLater(new Runnable() { public void run() { Status.show("Network Connection hasn't succedded. "+ "Please try again later." ); } }); isComplete = true; System.out.println(interrIO); stop(); } catch (Exception e) { System.out.println(e); //errStr = "Unable to connect to the internet at this time. "+ //"Please try again later."; UiApplication.getUiApplication().invokeLater(new Runnable() { public void run() { Status.show("Unable to connect to the internet at this time. "+ "Please try again later." ); } }); isComplete = true; stop(); } finally { try { if(_httpconn != null) { _httpconn.close(); _httpconn = null; } if(_in != null) { _in.close(); _in = null; } if(_out != null) { _out.close(); _out = null; } } catch(Exception e) { System.out.println(e); UiApplication.getUiApplication().invokeLater(new Runnable() { public void run() { Status.show("Unable to connect to the internet at this time. "+ "Please try again later." ); } }); } } } } can anybody help me out. Thanks in advance

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• iPad Video Playback only delivers audio, not visuals.

  - by Dwaine Bailey

  Hi guys, Recently we've developed an iPhone app for an external company, and everything works fine in the app. There is a section where the app pulls video from the client's server, and streams it into the iPhone's MPMoviePlayerController. This works fine on the iPhone and iPodTouch - both the video and the audio show up just great. The problem, however, is that when the app is run on an iPad (using the iPad's iPhone simulator thingo that it does) only the audio plays, and no video can be seen. Does anybody have any suggestions about what may be causing this? I thought perhaps it was the encoding, but then why would this prevent the video from playing on the iPad, and not the iPhone?

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• Nike + iPod app like customisation ?

  - by Madhup

  Hi, I am very much curious about Nike + iPod app look and feel. They have selected uitabbar buttons red in color The tableviewcell selection style as red in color. The disclosure indicator is also red in color. The solution in my mind for two of these is: I can use a red colored arrow image to use it as accessory view. I can flip between a red colored and white colored view with animation for having the selection style But I am clueless of how the tabbar thing is to be done. I am very curious to know the tricks behind this, I also accept that I may be wrong with my other two solutions. So please suggest the solution for any of the problems. I think all are worth knowing for the developers. Thanks, Madhup

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• Transparent child control

  - by pps

  Hello all, I'm writing a control that may have some of its parts transparent or semitransparent. Basically this control shows a png image (with alpha channel). The control's parent window has some graphics on it. Therefore, to make the png control render correctly it needs to get image of what the parent window would draw beneath it. Parent dialog might have WS_CLIPCHILDREN flag set, that means that the the parent window won't draw anything under the the png control and in this case png control won't work properly. This control has to work on Windows Mobile also, so it can't have WS_EX_TRANSPARENT

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