Let's say I have this query:
select * from table1 r where r.x = 5
Does the speed of this query depend on the number of rows that are present in table1?
I have a django model with a DateTimeField.
class Point(models.Model):
somedata = models.CharField(max_length=256)
time = models.DateTimeField()
I want to get a count of the number of these objects for each day. I can do this with the following SQL query, but don't know how to do it through django.
SELECT DATE(`time`), Count(*)
FROM `app_point`
GROUP BY DATE(`time`)
Being able to restrict the results to a date range would also be good.
I need to get the number of days contained within a couple of dates on mysql.
For example: Check in date 12-04-2010 Check out date 15-04-2010 and the day difference would be 3
I hope that was clear
Thanks
I am writing a small C application that use some threads for processing data. I want to be able to know the number of processors on a certain machine, without using system() & in combination to a small script.
The only way i can think of is to parse /proc/cpuinfo. Any other useful suggestions ?
Hello guys,
For a school project, we'll have to implement a ranking system. However, we figured that a dumb rank average would suck: something that one user ranked 5 stars would have a better average that something 188 users ranked 4 stars, and that's just stupid.
So I'm wondering if any of you have an example algorithm of "smart" ranking. It only needs to take in account the rankings given and the number of rankings.
Thanks!
I'm playing around with ASP.NET MVC and I just loaded up an empty project and ran it and the URL in my browser is http://localhost:52432/. Where is the 52432 port number specified?
Thanks in advance for your help, I'm going to start researching this question right now.
I have a multiline textbox which can contain only 500 characters. Now i want to show the user the number of characters left as they are typing into the textbox as is the case when we use twitter.
Kindly help
Input : {5, 13, 6, 5, 13, 7, 8, 6, 5}
Output : {5, 5, 5, 13, 13, 6, 6, 7, 8}
The question is to arrange the numbers in the array in decreasing order of their frequency, preserving the order of their occurrence.
If there is a tie, like in this example between 13 and 6, then the number occurring first in the input array would come first in the output array.
I'm considering using Berkeley DB to cache some data on an application cluster. What's a reasonable upper limit on the number of nodes I can plan on Berkeley DB handling? Writing to the database will be from a single node.
I am using AutoCompleteTextView and want to limit the number of dropdown items visible at a time on screen. Currently it fills up the screen but can i limit it to say 2 items with a scroll bar for displaying more.
As you can read in the tittle i need a regular expression for getting any letter, symbol, number from 1 to 100 maxlength (any text posible). Can someone provide that for me and maybe a good link to understand how it works.
Thank you.
I'm using inflector Pluralize and Singularize functions.
I want to know if there is a ready library that know to decide if a word needs to be Pluralize or Singularize based on a number.
Like:
0 articles
1 article
2 articles
Input : {5, 13, 6, 5, 13, 7, 8, 6, 5}
Output : {5, 5, 5, 13, 13, 6, 6, 7, 8}
Question is to arrange the numbers in the array in decreasing order of their frequency preserving the order of their occurrence.
If their is a tie, for example, here 13 and 6 then the number occurring first in input array would come first in output array.
I am working on a project that stores multiple versions in the same svn repo but in different directories. For ease of reference for the coders working on the project I'd like to be able to add a commented tag similarly to
# $Revision: 144 $
However, instead of the file revision it should contain a simple version number like so:
# $Version: 1.63 $
# $Version: 1.64 $
# $Version: 2.0 $
Is there a way to get subversion to do this automatically for a specific directory and all sub-directories as well as for any new files added to those?
Hi,
I need to define an appender for log4net in a way that I get one log file for each day, but the total number of files are limited to, let's say, 30. That is I want to keep only the logs not older then 30 days, delete the older ones.
I've tried doing it with RollingFileAppender, but it seems that specifying a limit of files to keep is not supported. Do you know of an alternative solution that I could use?
let's say I have this query:
select * from table1 r where r.x = 5
do the speed of this query depends on the number of rows that are present in table1 ?
I have a site that is mainly showing a paged list of content (articles, data element's, etc.), and I'm wondering about returning HTTP 404 when user navigates outside of the available list range.
Some sites just display "No results/Page number out of range" and some return additionally return HTTP 404 status.
What's your take on that, and why?
UPDATE
It's not and api response. This question is in regard to user viewed pages that among other things show a list/table in the main area.