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Possible to perform cross-database queries with PostgreSQL?
...nnection. If not found, the first argument is treated as a
connection info string as for dblink_connect, and the indicated
connection is made just for the duration of this command.
one of the good example:
SELECT *
FROM table1 tb1
LEFT JOIN (
SELECT *
FROM dblink('dbname=db2','SELECT ...
How do you get current active/default Environment profile programmatically in Spring?
...owire the Environment
@Autowired
Environment env;
Environment offers:
String[] getActiveProfiles(),
String[] getDefaultProfiles(), and
boolean acceptsProfiles(String... profiles)
share
|
impr...
How to make asynchronous HTTP requests in PHP
... $val);
$post_params[] = $key.'='.urlencode($val);
}
$post_string = implode('&', $post_params);
$parts=parse_url($url);
$fp = fsockopen($parts['host'],
isset($parts['port'])?$parts['port']:80,
$errno, $errstr, 30);
$out = "POST ".$parts['path']." HT...
Accessing MVC's model property from Javascript
... to JavaScript variable.
Property assignment - Basic datatypes like int, string, DateTime (ex: Model.Name)
Object assignment - Custom or inbuilt classes (ex: Model, Model.UserSettingsObj)
Lets look into the details of these two assignments.
For the rest of the answer lets consider the below Ap...
What is the difference between NaN and None?
...dcsv() and then assigning the values to a dictionary. The columns contain strings of numbers and letters. Occasionally there are cases where a cell is empty. In my opinion, the value read to that dictionary entry should be None but instead nan is assigned. Surely None is more descriptive of a...
Why is (object)0 == (object)0 different from ((object)0).Equals((object)0)?
...
@280Z28 So? A similar case is that their Boolean.ToString method apparently contains hardcoded strings inside its function, rather than returning the publicly exposed Boolean.TrueString and Boolean.FalseString. It's irrelevant; The point is, == does the same thing as Referenc...
Why do we use Base64?
...different purposes.
When you encode text in ASCII, you start with a text string and convert it to a sequence of bytes.
When you encode data in Base64, you start with a sequence of bytes and convert it to a text string.
To understand why Base64 was necessary in the first place we need a little h...
What permission do I need to access Internet from an Android application?
...Backup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.example.exp.MainActivity"
android:label="@string/app_name" >
<intent-filter>
<acti...
How do the major C# DI/IoC frameworks compare? [closed]
...nses/notifications:
public class Ping : IRequest<Pong>
{
public string Message { get; set; }
}
public class Pong
{
public string Message { get; set; }
}
public class PingAsync : IAsyncRequest<Pong>
{
public string Message { get; set; }
}
public class Pinged : INotification {...
Total width of element (including padding and border) in jQuery
...
same browsers may return string for border width, in this parseInt will return NaN
so make sure you parse value to int properly.
var getInt = function (string) {
if (typeof string == "undefined" || string == "")
r...