hi!
I wonder why Informatica's joiner transformation doesn't support !=, =, <= operators??
why should they come up with a concept like lookup??
Thanks for your suggestions.
Basically I want to setup a replication server for mysql datbase. I am completely new to this concept and appreciate any help pointing me in the right direction.
If at all the slave goes down, will it effect the master in anyway?
Thanks.
I see the word thrown around often, and I may have used it myself in code and libraries over time, but I never really got it. In most write-ups I came across, they just went on expecting you to figure it out.
What is a Class Factory? Can someone explain the concept?
We are working with a PHP application which has no concept of switch-able themes; the situation is that we are modifying the application to add our own features, and CSS/Smarty templates for our own look and feel.
We have 2 projects base on this application, each with a different layout/presentation. Hence I need to have one repo for the base application files, and one for the CSS/smarty templates. How should I go about doing this?
I'm unable to find the .NET FCL built-in concept of precedence to leverage while constructing Expression Trees. Ref System.Linq.Expressions Namespace. Is this something that must be handled manually in code, or is it somehow implicit and I'm not recognizing it? Maybe through helper methods or classes?
I want to apply it to math operations to ensure 3 + 5 * 10 results in 53 instead of 80.
I had done Edge detection using wavelet transform using thus steps
changing the image to Gray scale
decomposing the image using dwt2(discrete wavelet transform,Haar wavelet filter ) in to horizontal,vertical,diagonal and approximation(detail)
further decomposing the horizontal part
threshold (global threshold like canny Edge detection )
i got the edge but i got a problem while locating the edge to complete image to mean recovering original image using only the Edges so i need help concerning this either in concept ,mat lab code or references
I hope i will get your help soon
I recently learned a lot about MVC model which is a very interesting concept. I would assume there are a lot more models out there, and I thought it would be great for people to share some models.
Here's my contribution:
MVC Model: http://en.wikipedia.org/wiki/Model%E2%80%93view%E2%80%93controller
We all know that in C# we can't cast bool to int. I wanted to see what is the binary representation of true with bitmask, but I can't use (bool & int).. I think the problem is the architecture desicion "true is true, not any number != 0" (C++) and I was wondering what the benefits of such an architecture are? What is so bad with the C true/false concept?
JUnit 4.7 introduced the concept of custom rules:
http://www.infoq.com/news/2009/07/junit-4.7-rules
There are a number of built in JUnit rules including TemporaryFolder which helps by clearing up folders after a test has been run:
@Rule
public TemporaryFolder tempFolder = new TemporaryFolder();
There's a full list of built in rules here:
http://kentbeck.github.com/junit/javadoc/latest/org/junit/rules/package-summary.html
I'm interested in finding out what custom rules are in place where you work or what useful custom rules you currently use?
As a non-native english speaker, I was wondering why the concept of being able to be constructed by the copy constructor is called CopyConstructible (as opposed to CopyConstructable). What are the exact rules that require an i instead of an a?
In a Django project, some cronjob programs are mainly used for administrative or analysis purposes, e.g. generating site usage stats, rotating user activities log, etc.
We probably do not hope MySQL to cache queries in those programs to save memory usage and improve query cache efficiency.
Is it possible to turn off MySQL query cache explicitly in those programs while keep it enabled for other parts including all views.py?
I understand the concept and reasons behind using the using statement, and I use it with things like file resources and remote connections, I was wondering if it is good practice to
use the using statement with WinForm forms and dialogs?
using (MyDialog dlg = new MyDialog())
{
if (dlg.ShowDialog() == EDialogResult.OK)
{
// Do Something
}
}
Thanks!
What resources can you recommend for learning how to architect a iPhone application?
Background of the question is that most of the resources explain the usage of a single class or concept (and i appreciate that a lot to learn something about the specific topic) but as far as i can see they lack unfortunately to describe how to put things together for typical real world applications.
Hi,
I need that when i check a checkbox i apply different background color to HTML table rows according to and ID of a user in database using jquery, and then i uncheck the checkbox go to previous state.
For the record i am not asking for code i am asking for concept.
Hi everyone I am not clear with SQL reporting services can someone pls give me breef explanation or post some tutorial with examples and concept explanations. ]
Thanks a lot.
From a recent SO question I realized I probably had a wrong concept of the meaning of hashable and immutable objects in python.
What hashable means in practice?,
What the relation between hashable and immmutable is?
There are mutable objects that are hashable? And immutable not hashable?
hi.
i am new to this cubes concept in sqlserver . i need to connect to cubes and and query and get an result and display that result in grid view
any help would be great telling how to connect to an cube, articles on it, code any thing that can help me to achieve the result
thank you.
I wanted to do some analysis on registered domain names. Looks like I can hit whois.internic.net to get information about each domain, but it also looks like there are rate limits that prevent me from doing large numbers of queries.
Is there a way to periodically (say daily) grab the entire whois database? I really only care about whether a domain is registered or not, so I don't need the full whois information.
Hi,
I have a curious problem, I need to analyze a Java heap dump (from an IBM JRE) which has 1.5GB in size, the problem is that while analyzing the dump (I've tried HeapAnalyzer and the IBM Memory Analyzer 0.5) the tools runs out of memory I can't really analyze the dump. I have 3GB of RAM in my machine, but seems like it's not enough to analyze the 1.5 GB dump,
My question is, do you know a specific tool for heap dump analysis (supporting IBM JRE dumps) that I could run with the amount of memory I have?
Thanks.
I have a .NET Windows service that appears to be crashing due to C00000005 (access violation--according to Dr Watson). When I attach the VS debugger to it--whether I build it with or without symbols--the VS debugger just stops when the service crashes, instead of stopping to give me a chance to do any investigation.
Is that to be expected, or am I doing something wrong?
Will using WinDbg let me do something more in real time (obviously, WinDbg lets me do crash dump analysis)?
Thanks!
This seems to work (compiler doesn't complain, anyway):
float adsr[4] = {0,1.0/PULSE_SPEED, 0,1};
[sequence setBaseADSR:adsr];
but I want to make it more concise and do this:
[sequence setBaseADSR:{0,1.0/PULSE_SPEED, 0,1}];
How do I do it? In javascript, I'd call stuff in the brackets an "array literal". Not sure if C languages have the same concept or terminology though.
Can anyone suggest a performance analysis tool that runs on win32 on a native c++ app?
How about one that runs on Windows Mobile?
(Preferably one that does not cost too much)
Thank you.
Hi;
Supposing we have opened a connection of type either TCP or UDP to another remote machine. Having this connection, can we allow multiple connections virtually over this connection like VPN(but not VPN)? I mean multiple applications run on remote machine and you try to access to these applications, is there any multiplexing mechanism or concept supporting such feature?
Which programming languages other than C++ support the concept of a constant class method? That is, what languages allow the programmer to constrain a method in such a way that it is guaranteed not to change the state of an object to which the method is applied?
Please provide examples or references in your answer.
How do I pass the identity of the logged on user in an a webapplication to a service beeing called by the webserver?
My idea her is to set som kind of EndpointIdentity on the cahnnel. In my case this will be an GUID identifing the user's session on the webserver.
Anyone got any exprience on this.. Maybe I have misunderstood the concept?
Any idea's or links would be apriciated.