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How do I cast a string to integer and have 0 in case of error in the cast with PostgreSQL?
... RETURN NULL;
END;
RETURN v_int_value;
END;
$$ LANGUAGE plpgsql;
Testing:
=# select convert_to_integer('1234');
convert_to_integer
--------------------
1234
(1 row)
=# select convert_to_integer('');
NOTICE: Invalid integer value: "". Returning NULL.
convert_to_integer...
Delete all files in directory (but not directory) - one liner solution
...iles from ABC (sub-directories are untouched):
Arrays.stream(new File("C:/test/ABC/").listFiles()).forEach(File::delete);
This deletes only files from ABC (and sub-directories):
Files.walk(Paths.get("C:/test/ABC/"))
.filter(Files::isRegularFile)
.map(Path::toFil...
How to quickly edit values in table in SQL Server Management Studio?
... idea, if your table has millions of rows.....
– marc_s
Oct 8 '09 at 5:09
why don't just enter the desired value for e...
Set markers for individual points on a line in Matplotlib
... to plot lines on a figure. Now I would now like to set the style, specifically the marker, for individual points on the line. How do I do this?
...
putting datepicker() on dynamically created elements - JQuery/JQueryUI
I have dynamically created textboxes, and I want each of them to be able to display a calendar on click. The code I am using is:
...
How to manually send HTTP POST requests from Firefox or Chrome browser?
I want to test some URLs on a web application I'm working on. For that I would like to manually create HTTP POST requests (meaning I can add whatever parameters I like).
...
Download file from web in Python 3
....request
...
# Download the file from `url` and save it locally under `file_name`:
urllib.request.urlretrieve(url, file_name)
import urllib.request
...
# Download the file from `url`, save it in a temporary directory and get the
# path to it (e.g. '/tmp/tmpb48zma.txt') in the `file_name` variable:...
Difference between @Mock and @InjectMocks
...d inject them.
@RunWith(MockitoJUnitRunner.class)
public class SomeManagerTest {
@InjectMocks
private SomeManager someManager;
@Mock
private SomeDependency someDependency; // this will be injected into someManager
//tests...
}
...
How would you access Object properties from within an object method? [closed]
...
PHP offers a myriad of ways to handle this, including magic methods __get and __set, but I prefer explicit getters and setters. Here's why:
Validation can be placed in setters (and getters for that matter)
Intellisense works with explicit methods
No question whether a property is read only,...
How do I capitalize first letter of first name and last name in C#?
...
String test = "HELLO HOW ARE YOU";
string s = CultureInfo.CurrentCulture.TextInfo.ToTitleCase(test);
The above code wont work .....
so put the below code by convert to lower then apply the function
String test = "HELLO HOW ARE ...