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Framework vs. Toolkit vs. Library [duplicate]
...the task of the client code, such as building a window, resizing a window, etc. The lower levels of abstraction within a toolkit are either fixed, or can themselves be operated on by client code in a proscribed manner. (Think Window style, which can either be fixed, or which could be altered in adva...
How to drop a PostgreSQL database if there are active connections to it?
... all postgresql processes that are running by tying this command
sudo /etc/init.d/postgresql restart
type the command
bg to check if other postgresql processes are still running
then followed by dropdb dbname to drop the database
sudo /etc/init.d/postgresql restart
bg
dropdb dbname
Thi...
How to change the CHARACTER SET (and COLLATION) throughout a database?
...
_bin -- just compare the bits; don't consider case folding, accents, etc
_ci -- explicitly case insensitive (A=a) and implicitly accent insensitive (a=á)
_ai_ci -- explicitly case insensitive and accent insensitive
_as (etc) -- accent-sensitive (etc)
_bin -- simple, fast
_ge...
Singular or plural controller and helper names in Rails
... controllers that are tied directly to a specific model: User -> Users, etc.), but you can use whatever you want.
As for helpers, all helpers are available for all controllers by default, so technically, how you name your helpers doesn't matter at all. It's just another convention to keep a cont...
How can I validate a string to only allow alphanumeric characters in it?
...r digits, or for things that look like numbers (fractions, Roman numerals, etc.; see msdn.microsoft.com/en-us/library/yk2b3t2y.aspx). Given that, and if one was feeling particularly evil, one could compress the contents of IsAlphaNum even further: return string.IsNullOrEmpty(str) ? false : str.ToCh...
Is XSLT worth it? [closed]
...ow you to debug directly within XSL files. Setting breakpoints, inspecting etc.
– Craig Bovis
May 20 '09 at 14:10
This...
Compiler error: memset was not declared in this scope
...per equivalent C++ headers, <cstring>/<cstdio>/<cstdlib>/etc, rather than C's <string.h>/<stdio.h>/<stdlib.h>/etc.
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...
C read file line by line
...har * line = NULL;
size_t len = 0;
ssize_t read;
fp = fopen("/etc/motd", "r");
if (fp == NULL)
exit(EXIT_FAILURE);
while ((read = getline(&line, &len, fp)) != -1) {
printf("Retrieved line of length %zu:\n", read);
printf("%s", line);
}
f...
Insert into … values ( SELECT … FROM … )
...Int, someVarChar )
SELECT table2.column1, table2.column2, 8, 'some string etc.'
FROM table2
WHERE table2.ID = 7;
I've only used this syntax with Access, SQL 2000/2005/Express, MySQL, and PostgreSQL, so those should be covered. It should also work with SQLite3.
...
Getting A File's Mime Type In Java
I was just wondering how most people fetch a mime type from a file in Java? So far I've tried two utils: JMimeMagic & Mime-Util .
...