I want a resultset for this table :
ID Number_of_posts Number_of_user
1 100 21
2 23 34
as
ID Number_of_posts Number_of_user Number_of_posts_AND_Number_of_user
1 100 21 178
2 23 34 178
-----------------------------------------------
123 55
Is it possible to get the sum of two colums as another column/ as output in mysql?
As I remember there is a magic command line option in Java that turn on writing of operations that are currently executed to console. The output was looked like byte code. I do not mean -verbose, because it prints only class loading, while this option outputs information like memory allocation etc.
Why does cout has to be flushed before cin starts reading? Aren't they of different buffer? I can have reading of input into a buffer while same time putting it on output buffer (before flushing) .. 2 different buffers. I am confused here.
I have a datatable having 44 rows.
I have converted that to list and want to take the rows from 4th row till the last(i.e. 44th).
I have the below program
IEnumerable<DataRow> lstDr = dt.AsEnumerable().Skip(4).Take(dt.Rows.Count);
But the output is Enumeration yielded no results
I am using c#3.0
Please help.
I tried this,
#!/bin/ksh
for i in {1..10}
do
echo "Welcome $i times"
done
in Ksh of an AIX box.
I am getting the output as,
Welcome {1..10} times
What's wrong here?
Thanks.
I believe Adobe tools like CS5 have ways to output as an iPhone app, but what about a regular AS3 or Flex project? Are there any tools to auto-port, or AS3/Flex iPhone implementations out there?
Out of interest, how does the CS5 thing work? Is it a totally different code-path or something less drastic? For instance Flash supports Shapes and Timelines, etc... do they in fact provide an iPhone Flash runtime of some sort?
I frequently come across this problem. I have a file:
something
something2
something3
which I want output as:
"something","something2","something3"
any quick tool for this, preferably online?
well this isnt my homework so you can help me out in this, im tryin to solve this for my firm
but im really lost in between do i sue sequence or not
for example
person
Input ? 277-5387
Output ? BRSKEUP
For my Contact class, the property EmailAddress is marked with the [DataType(DataType.EmailAddress)] attribute.
In my view, using Html.Display("EmailAddress") and Html.DisplayFor(c => c.EmailAddress) yields different results. The former outputs a mailto: link, which is the expected behavior, while the latter simply outputs the email address as plain text.
My question is why the different behavior, I expected these two methods to have the same output.
I trying to find out how to get the mail server information on the server I connect to with Javamail. I know in the debug statements when you connect you will get something like "S: +OK [MAIL_SERVER_NAME] ready.". Is there an easier way to get this information (and hopefully more information) than just parsing the debug output?
There are often times I'll grep -l whatev file to find what I'm looking for. Say the output is
1234: whatev 1
5555: whatev 2
6643: whatev 3
If I want to then just extract the lines between 1234 and 5555, is there a tool to do that? For static files I have a script that does wc -l of the file and then does the math to split it out with tail & head but that doesn't work out so well with log files that are constantly being written to.
I have been using this "logic" in C++ and VB with success, but am tied up in Java...
Simply put,
public void DataProviderExample(String user, String pwd, String no_of_links,
String link1, String link2, String link3) {
for (int i=1;i<=no_of_links;i++) {
String link = "link"+i;
System.out.println(link);
}
Now, if the variables link1, link2 and link3 have a value of "X", "Y" and "Z" respectively, upon running this program, I get the following output -
link1
link2
link3
What I want is -
X
Y
Z
Any ideas?
Hi all,
it may be wrong place to ask this question, but i hope u all programmer must have the interesting naming convention of variables. i have seen many places that some variable names are very good n effective like
common variable names
$link
$db
$connect
$query
$stmt
$sql
$qry
$output
$result
$list
so please suggest me some good names for variable , bcoz all time i have to write
$x, $y etc.. if i want to save something instantly on page...that are even not relevant, so please suggest me good variable names
Is there any efficient way in python to count the times an array of numbers is between certain intervals? the number of intervals i will be using may get quite large
like:
mylist = [4,4,1,18,2,15,6,14,2,16,2,17,12,3,12,4,15,5,17]
some function(mylist, startpoints):
# startpoints = [0,10,20]
count values in range [0,9]
count values in range [10-19]
output = [9,10]
I have a bunch of types (eg. LargePlane, SmallPlane) that could be in this collection i've made, how do i print like LargePlane? I've tried like typeOf() and stuff but it doesn't work. Within like a toString()? So when i output the collection it states what type it is.
I am a beginner for Eclipse. I now have Eclipse C/C++ IDE with OpenCV library running on Windows 7. So far it works after spending hours trying to get it running. But then I realize that Eclipse does not pop up a command prompt as VS2010 does while debugging. And moreover Eclipse's debug mode is just stuck in there and refuse to output anything. But if the code doesn't involve the OpenCV things it works again.
Below is the code I use for testing. It captures images from webcam and output it to the screen. The infinite loop (until you press 'q') makes sure it constantly grabs new inputs from the camera.
I browsed through the workspace and run the exe just compiled and it worked flawlessly. So I don't think there's anything wrong in the code (it's an example code anyway
In brief, can I just pop up a command prompt window in debug mode? And why is Eclipse console stuck when the code involves some OpenCV functions?
#include <stdio.h>
#include <stdlib.h>
#include <tchar.h>
#include <cv.h>
#include <cxcore.h>
#include <highgui.h>
#include <iostream>
int _tmain(int argc, _TCHAR* argv[])
{
CvCapture *capture = 0;
IplImage *frame = 0;
int key = 0;
/* initialize camera */
capture = cvCaptureFromCAM( 0 );
/* always check */
if ( !capture ) {
printf("Cannot open initialize webcam!\n");
return 1;
}
/* create a window for the video */
cvNamedWindow( "result", CV_WINDOW_AUTOSIZE );
while( key != 'q' ) {
/* get a frame */
frame = cvQueryFrame( capture );
/* always check */
if( !frame ) break;
/* display current frame */
cvShowImage( "result", frame );
/* exit if user press 'q' */
key = cvWaitKey( 1 );
}
/* free memory */
cvDestroyWindow( "result" );
cvReleaseCapture( &capture );
return 0;
}
I have a strange problem,
I am trying to order the output of a set of records by a field called displayOrder. Now even though record A has a displayOrder of 2 and record B has a displayOrder of 1000, record B still shows up before record A. Here's my select statement:
SELECT * FROM items ORDER BY displayOrder ASC
It works fine until I have a record greater than 9, then 10, 11, 12, etc are seen as smaller than 2, 3, 4 because they start with the number 1. Any way to fox this?
I asked a question like this in an interview for a entry level programmer:
var instance1 = new myObject{Value = "hello"}
var instance2 = instance1;
instance1.Value = "bye";
Console.WriteLine(instance1.Value);
Console.WriteLine(instance2.Value);
The applicant responded with "hello", "bye" as the output.
Some of my co-workers said that pointers are not that important anymore or that this question is not a real judge of ability.
Are they right?
If I do something like this in ColdFusion:
<cfoutput>foo="#foo()#"</cfoutput>
The resulting HTML has a space in front of it:
foo=" BAR"
However, if it is not a function call it works fine, i.e.:
<cfset fooOut=foo() />
<cfoutput>foo="#fooOut#"</cfoutput>
Gives this output:
foo="BAR"
Where is this extra space coming from and is there anything I can do about it?
Hi ,
in my database i have phone numbers with country code , which look somthing like
0044-123456
0044-123456
0014-123456
0014-123456
0024-123456
0024-123456
0034-123456
0044-123456
0044-123456
0024-123456
0034-123456
084-123456
084-123456
i want to total up the numbers by country, something like this output
0044 (2)
0024 (2)
0034 (1)
084 (2)
064 (5)
Is it possible to do this with a SQL query?
I have a custom control and I am trying to validate a hidden field. The validation works fine but I am getting the following Javascript error every time (output from Firebug):
Error: element is null
Code: var currentClassName = ' ' + WebForm_TrimString(element.className) + ' ';
URL: http://localhost:58462/WebResource.axd?d=...
I have an array of entries I would like to print.
Being arr the array, I used just to write:
puts arr
Then I needed to use the DOS format end-of-line: \r\n, so I wrote:
arr.each { |e| print "#{e}\r\n" }
This works correctly, but I would like to know if there is a way to specify what end-of-line format to use so that I could write something like:
$eol = "\r\n"
puts arr
UPDATE
I know that puts will use the correct line-endings depending on the platform it is run on, but I need this because I will write the output to a file.
I just want to play a very simple, straight forward note by giving my computer a certain frequency as an integer, and from there I can figure out how to make it play the note longer or shorter. It does not necessarily have to come out of the actual sound card - if it's generated and output by the internal speaker that's okay.
I looked at the midi libraries that java has included, and they are way more than what I want to do. This just needs to be very basic.