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Check if table exists and if it doesn't exist, create it in SQL Server 2008
...LECT * FROM sys.objects
WHERE object_id = OBJECT_ID(N'[dbo].[YourTable]') AND type in (N'U'))
BEGIN
CREATE TABLE [dbo].[YourTable](
....
....
....
)
END
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Interface or an Abstract Class: which one to use?
Please explain when I should use a PHP interface and when I should use an abstract class ?
11 Answers
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jQuery pass more parameters into callback
...ure.
As a more basic example, here is an example function that receives and calls a callback function, as well as an example callback function:
function callbackReceiver(callback) {
callback("Hello World");
}
function callback(value1, value2) {
console.log(value1, value2);
}
This call...
Combined area of overlapping circles
I recently came across a problem where I had four circles (midpoints and radius) and had to calculate the area of the union of these circles.
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Any gotchas using unicode_literals in Python 2.6?
...f-8 encoded string (not unicode) since it did not import unicode_literals, and one.name is an unicode string. When you mix both, python tries to decode the encoded string (assuming it's ascii) and convert it to unicode and fails. It would work if you did print name + two.name.decode('utf-8').
The s...
Python concatenate text files
...each file by f = open(...) , read line by line by calling f.readline() , and write each line into that new file. It doesn't seem very "elegant" to me, especially the part where I have to read//write line by line.
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How do I install g++ for Fedora?
...w do I install g++ for Fedora Linux? I have been searching the dnf command to install g++ but didn't find anything.
9...
'Incomplete final line' warning when trying to read a .csv file into R
I'm trying to read a .csv file into R and upon using this formula:
15 Answers
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Is there a way for non-root processes to bind to “privileged” ports on Linux?
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Okay, thanks to the people who pointed out the capabilities system and CAP_NET_BIND_SERVICE capability. If you have a recent kernel, it is indeed possible to use this to start a service as non-root but bind low ports. The short answer is that you do:
setcap 'cap_net_bind_service=+ep' /path/...
How do I get the find command to print out the file size with the file name?
If I issue the find command as follows:
15 Answers
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