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• SQL Query Theory Question...

  - by Keng

  I have a large historical transaction table (15-20 million rows MANY columns) and a table with one row one column. The table with one row contains a date (last processing date) which will be used to pull the data in the trasaction table ('process_date'). Question: Should I inner join the 'process_date' table to the transaction table or the transaction table to the 'process_date' table?

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• Data Storage question

  - by Nano8Blazex

  Another newbie question: What's the best way to store data in a Cocoa application written in Obj-C? For example if I want to create a sort of "quizzer" that quizzes the user with pre-written (and user-written) questions? How would I store these questions and answers? Core Data? Thanks!

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• CSS: question about "width" and "height" for cells.

  - by user248959

  Hi, i have this page. login: [email protected] password: m I've gave a width to "td.select_edad label" but it doesnt work.. I know it's deprecated, so what is your advice? Another question: why "height" (also deprecated) is working ok for the fields of the filter? Regards Javi

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• Beginner question on Facebook application

  - by Robert

  Hi Guys, I am new to facebook application development.My question is:do I have to have a server to make the development?Could I do it on my own local machine and try it out? Thanks for your advice.

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• C++ interview question

  - by benjamin button

  as i am not an expert in c++,i was not aware of the answer to this question asked in one of the interviews. lets say there is a base class pointer which is pointing to a base class object: baseclass *bptr; bptr= new baseclass; now if i do bptr= new derived; what is the problem here?

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• question about cryptography

  - by davit-datuashvili

  i have question can anybody give me link about cryptography with algorithms ? thanks i need it very much in general i am using java language also it is possible in c++ but heart of site should be methods and theory part

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• question about charAt function

  - by davit-datuashvili

  i know java API function charAt for example String s="dato" char r=s.charAt(0); r is equal d but my question is how realy it works or what function can i use instead of charAt function to get same result? thanks

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• WURFL's New API Question

  - by silent

  Hi all, I have a simple stupid question. Here's the problem, for years, my company has been using the old WURFL PHP API. Now, with the release of the new WURFL PHP API that promises a better performance, we want to use it. What I want to ask is, how do I update the cache? Can I use the old *update_cache.php*?

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• ok help me only in this question

  - by davit-datuashvili

  ok help me only in this question we have m length of pattern and k variable here for (i=0; i <= k; ++i) R[i] = ~1; instead of k should be m yes? boolean[]R=new boolean[m+1]; look at this algorithm http://en.wikipedia.org/wiki/Bitap_algorithm

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• Question on struct

  - by barbgal

  i see lot of struct code like below struct codDrives { WCHAR letter; WCHAR volume[100]; } Drives[26]; we can use variables or array something like that to store the data.. but i am not sure why use struct in the programs. i am beginner so please for my dump question Thank you for the time spent to me

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• javascript simple question

  - by Michael

  window.addEventListener('unload', function(e) { MyClass.shutdown(); window.removeEventListener('unload', /* how to reference the function itself here? */); }, false); The question in the comment.

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• question about function derivatives

  - by davit-datuashvili

  hi i have question for example i have some function int sumefunction(//parameters here let say int x){ return something let say x*x+2*x+3 or does not matter } i am interesting how find derivative of this function ?if i have int f(int x){ return sin(x); } after derivative it must return cos(x) thanks

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• question about tree

  - by davit-datuashvili

  i have question for example i want to implement binary tree with array i want understand what will indexes for left child and rigth child ?my array is 0 based i want implement searching in tree using array can anybody help me?

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• Interview question: about Java serialization and singletons

  - by subhashis

  In an interview the interviewer asked me the following question: is it possible to serialize a singleton object? I said yes, but in which scenario should we serialize a singleton? And is it possible to design a class whose object can not be serialized?

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• question about interface

  - by davit-datuashvili

  i have posted this question http://stackoverflow.com/questions/2874487/how-can-i-implement-this-python-snippet-in-java i have compiled it now i need to use in main project public static void main(String[]args){ } ? can anybody show me example?

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• question about interface

  - by davit-datuashvili

  i have posted this question http://stackoverflow.com/questions/2874487/how-can-i-implement-this-python-snippet-in-java i have compiled it now i need to use in main project public static void main(String[]args){ } ? can anybody show me example?

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• question about interface

  - by davit-datuashvili

  i have posted this question http://stackoverflow.com/questions/2874487/how-can-i-implement-this-python-snippet-in-java i have compiled it now i need to use in main project public static void main(String[]args){ } ? can anybody show me example?

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• question about difference beween forms

  - by davit-datuashvili

  hi i have question what is different between public static void printMax( double... numbers) { and public static void printmax(double numbers[]) ? is is double...numbers the same as double numbers[]?

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• SQL Query Question - Select * from view or Select col1,col2.....from view

  - by Napco

  We are using SQL2005 but this question can be for any rdbms. Which is more efficient, when selecting all columns from a view Select * from view or Select col1,col2.....from view

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• linked-list interview question

  - by giri

  Hi This was the question asked in interview.Can anybody help me out it in implementing in java Given 2 linked lists(which need not have unique elements) find intersection point in the form of Y.(it can be anywhere--middle or tail)

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• question on cryptography

  - by davit-datuashvili

  let say we have string t i have question why this does not work t.charAt(i)+=3; where i changes from 0 to t.length()

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• quick java question

  - by mark

  hi, im currently learning stacks in java and have a quick question. what will the following code display if the stack is empty? my guess would be "true"? System.out.println(st.isEmpty());

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• question about char array

  - by davit-datuashvili

  i have question about char array how declare in java array of char from a to z ? i mean char characters []=new char[]{a....z]? thank

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• Output of a C question..

  - by RBA

  int main() { int a=10,b=20; char x=1,y=0; if(a,b,x,y) { printf("EXAM"); } } Hi, Please let me know why output of this question is "Printed Nothing".. Thankss.

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• Rails Association Question...

  - by keruilin

  I have three models: User, RaceWeek, Race # Current associations: User has_many race_weeks; RaceWeek belongs to user; RaceWeek has many races; Race belongs to RaceWeek # So the user_id is a foreign key in RaceWeek and race_week_id is a foreign key in Race. # fastest_time is an attribute of the Race model. # QUESTION: What's the optimal way to retrieve a list of users who have the top X fastest race times?

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