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How to extract year and month from date in PostgreSQL without using to_char() function?
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what are you trying to do? Just get a string? Then use to_char function with a date format you need postgresql.org/docs/8.2/static/functions-formatting.html
– MK.
Apr 24 '17 at 17:22
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SET NAMES utf8 in MySQL?
...fault talks latin1
your hole app is in utf8
connection is made without any extra (so: latin1) (no SET NAMES utf8 ..., no set_charset() method/function)
Store and read data is no problem as long mysql can handle the characters.
if you look in the db you will already see there is crap in it (e.g.us...
Android: TextView automatically truncate and replace last 3 char of String
If a String is longer than the TextView 's width it automatically wraps onto the next line. I can avoid this by using android:singleLine (deprecated) or by setting android:inputType="text" . What I need now is something that replaces the last 3 characters of my String with " ... ". Since I'm...
What differences, if any, between C++03 and C++11 can be detected at run-time?
...isCpp0x() {
return (sizeof c::a()) == sizeof(b);
}
Also, the fact that string literals do not anymore convert to char*
bool isCpp0xImpl(...) { return true; }
bool isCpp0xImpl(char*) { return false; }
bool isCpp0x() { return isCpp0xImpl(""); }
I don't know how likely you are to have this work...
How can I reliably determine the type of a variable that is declared using var at design time?
...ainst just that statement. For example, suppose you have the method body:
String x = "hello";
var y = x.ToCharArray();
var z = from foo in y where foo.
and now we need to work out that foo is of type char. We build a database that has all the metadata, extension methods, source code types, and so...
How to convert an enum type variable to a string?
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There really is no beautiful way of doing this. Just set up an array of strings indexed by the enum.
If you do a lot of output, you can define an operator<< that takes an enum parameter and does the lookup for you.
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Difference between IsNullOrEmpty and IsNullOrWhiteSpace in C# [duplicate]
... the
following code, except that it offers superior performance:
return String.IsNullOrEmpty(value) || value.Trim().Length == 0;
White-space characters are defined by the Unicode standard. The
IsNullOrWhiteSpace method interprets any character that returns a
value of true when it is pas...
URLEncoder not able to translate space character
...om the javadocs:
This class contains static methods for
converting a String to the
application/x-www-form-urlencoded MIME
format.
and from the HTML Specification:
application/x-www-form-urlencoded
Forms submitted with this content type
must be encoded as follows:
Con...
What happens to an open file handle on Linux if the pointed file gets moved or deleted
...ntl.h>
#include <stdlib.h>
#include <unistd.h>
#include <strings.h>
#include <stdio.h>
void perror_and_exit() {
perror(NULL);
exit(1);
}
int main(int argc, char *argv[]) {
int fd;
if ((fd = open("data", O_RDONLY)) == -1) {
perror_and_exit();
}
char buf[5]...
Fastest way to check if a string is JSON in PHP?
I need a really, really fast method of checking if a string is JSON or not. I feel like this is not the best way:
30 Answer...