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• Is "campaign_$" a bad name for a SQL column?

  - by Summer

  PostgreSQL has allowed me to name a column "campaign_$". I like the name because it's short and to the point, and other potential names like "campaign_receipts" seem longer and less clear. BUT, I wonder if I'll eventually regret putting a $ symbol in a column name, either in PHP or in some other distant part of the architecture. Should I just stick to letters and underscores? Thanks!

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• REST services - exposing non-data "actions"

  - by ctacke

  I understand how to use REST for doing general entity interactions - using urls names to map to entities and the HTTP verbs to map to actions on those entities. But what is the generally accepted way of looking at "actions" more like RPC? For example, let's say I want to send a command for the device to reset? There's no real "entity" here or do I do something like POST to http://mydevice/device/reset?

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• use javascript to read a link resource without ajax

  - by user156153

  Not sure if it's possible but how do I read a resource from a url using javascript without ajax? for example, the following url is a static text file containing json encoded text http://mysite.s3.amazonaws.com/jsonencodedcontent.txt I'd like to use javascript to read the content from above link, read the json content into a javascript variable. I can't use ajax because of cross site and I have no control over amazon S3 domain. anyway to achieve this?

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• How do I prevent sql injection with php and mysql

  - by herrturtur

  I have a form into which the visitor can enter data, and I want to store this data in a mysql database via the $_POST variable. What do I need to prevent sql injection?

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• Creating an instance within the Class itself

  - by didxga

  What's going on when the assignment statement executed at Line 4, does compiler ignore the new operator and keep the foo variable being null or something else happen to handle this awkward moment? public class Foo { // creating an instance before its constructor has been invoked, suppose the "initializing" // gets printed in constructor as a result of the next line, of course it will not print it private Foo foo = new Foo();//Line 4 public Foo() { System.out.println("initializing"); } }

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• button submit with 2 different behaviour

  - by kawtousse

  hi, how could i set a variable with a submit button in order to differenciate 2 behaviours, so first time the same submit button will insert in database and in second time it updates database values. Thanks.

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• Can I use the same DBML to access different tables?

  - by Sisiutl

  I have many tables with identical schemas but different names. Can I create a single representative DBML/DataContext and re-use it for all the tables, or do I have to drag every table into the dbml designer?

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• How to get full path of a given path

  - by Nam Gi VU

  I have a variable define as: set filePath=".\file.txt" How can I get the full path of this path? Please help!

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• Parameterizing a SQL IN clause?

  - by Jeff Atwood

  How do I parameterize a query containing an IN clause with a variable number of arguments, like this one? select * from Tags where Name in ('ruby','rails','scruffy','rubyonrails') order by Count desc In this query, the number of arguments could be anywhere from 1 to 5. I would prefer not to use a dedicated stored procedure for this (or XML), but if there is some fancy SQL Server 2008 specific way of doing it elegantly, I am open to that.

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• Referencing sheets with spaces

  - by user2250964

  I am having an issue with referencing the sheet name through =Branded!$A$1 Notation in VBA. For a while I have passed in simple sheet names like: Dim SheetName As String SheetName = "Pizza" ("=" & SheetName & "!$A$1") This has worked fine, but recently I passed in "Tier 1" and of course this notation broke. Is there any fix or workaround for this? It Think it's because of the space, the number or both....

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• How can I process a Perl array element in a shell script?

  - by joe

  For example: In Perl: @array = (1,2,3); system ("/tmp/a.sh @array" ); In my shell script, how do I handle this array in shell script? How do I handle the shell script to receive the arguments, and how do I use that array variable in shell script?

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• how can i pass a parameter in a thread in ansi c?

  - by moon

  int NM_Generator = 1; //Aray to store thread handles HANDLE Array_Of_Thread_Handles[1]; //variable to hold handle of North pulse HANDLE Handle_Of_NM_Generator = 0; //Create NM_Generator Thread Handle_Of_NM_Generator = CreateThread( NULL, 0, NMGenerator, &dDifference, 0, NULL); if ( Handle_Of_NM_Generator == NULL) ExitProcess(NM_Generator); i want to pass a parameter double value in it how can i do so?

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• Can I use ALTER DATABASE to rename a mysql database?

  - by thearchitect

  I am using PDO with PHP to create a new database and then a new user with privileges on that database. In case one of them fails, I want to rename the database and user so that they can be deleted later and the names are available. Is it possible to rename a mysql database using the ALTER DATABASE?

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• [iPhone] How to control other buttons' actions?

  - by Devoted

  Hi so say I have this code: UIAlertView *alert = [[UIAlertView alloc] initWithTitle: @"Yay" message: msg delegate: self cancelButtonTitle: @"Proceed..." otherButtonTitles: @"1", @"2", nil]; How do I control the other buttons "1" and "2"? (Suppose all other necessary code is in place, such as the undefined variable msg) Thanks!

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• Grep and Extract Data in Perl

  - by syker

  I have HTML content stored in a variable. How do I extract data that is found between a set of common tags in the page? For example, I am interested in the data (represented by DATA kept between a set of tags which one line after the other: ... <td class="jumlah">*DATA*</td> <td class="ud"><a href="">*DATA*</a></td> ...

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• When using Sessions is bad thing, and whats wrong with it?

  - by Amr ElGarhy

  I know that in community server which means that you can't use Sessions, and few years ago i remember i was working on a website where we were not allowed to use sessions. In my point of view sessions are a very helpful tool if we managed how to use the right way, but is using session variable in a website is something bad, when its bad and when its not?

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• PHP - getting content of the POST request

  - by user364622

  I have problem with getting the content. I don't know the names of the post variables so I can't do this using = $_Post['name'] because I don't know the "name". I want to catch all of the variables send by POST method. How can I get keys of the $_Post[] array and the values related with them?

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• Is there a way to have multiple "name=value" lines in the INI file using boost::program_options::par

  - by MeThinks

  I want to be able to specify multiple name=value lines in the INI file using boost::program_options. Something like [list.names] name=value name=value2 name=value3 Is there a way to achieve this with boost::program_options? I get a multiple occurrences error if I try it If not, what other libraries are available?

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• turn array values into keys in another array in php?

  - by user151841

  I have an array of field names. I would like to use those to populate the keys of another array, which will have empty values as default. Is there a single command I can do this with?

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• Is this a correct syntax (c code found on wikipedia)?

  - by m4design

  I just found this code on wikipedia. Link: http://en.wikipedia.org/wiki/Sizeof#Use The code: /* the following code illustrates the use of sizeof * with variables and expressions (no parentheses needed), * and with type names (parentheses needed) */ char c; printf("%zu,%zu", sizeof c, sizeof(int)); It states that: "The z prefix should be used to print it, because the actual size can differ on each architecture." I tried it on my compiler, but it gives the following result: 'zu,zu'

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• updating a properties file in a web application

  - by AmiraGL

  i have a properties file (under rsources folder) in which i'm stocking a variable (key=value), i need to update it when a user insert a new value or update the older one , so can i do it ? i have doubts because it's a web application so it' simply a war deployed in the server so how it is possible to access the .properties file and change it directly from the code . if it's not possible is there another solution ? Any Help will be apprecited Many thanks

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• passing parameter from asp.net page to flex application

  - by Sofie_vo

  I have an asp.net page where I get the user_id from who's logged in. Now I need to pass this user_id to a flex application that runs in an asp.net page as a .swf. How can I get this user_id in a variable in my flex application. Or what is the best way to get the user_id into flex. Thanks

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• C++ performance of global variables

  - by Dr. Acula

  For clarification: I know how evil globals are and when not to use them :) Is there any performance penalty when accessing/setting a global variable vs. a local one in a compiled C++ program?

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• How do I include a file in a class?

  - by 404Error

  Hey, I want to include a file to be accessible to any method/function in a PHP class. The file just contains a base-64 encoded variable. How do I do this? Thanks.

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• Package start and end times

  - by abkl

  Hi , I wanted to know if there is any system variable which is can use to access package execution start and end times. My requirement is that i need to store this in 2 relevant fields in a table in the database. Thank you. Abhi

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