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What is the difference between char, nchar, varchar, and nvarchar in SQL Server?
...from a nvarchar(X) column to a varchar(X) column to fail with a truncation error (where X denotes a number that is the same in both instances).
SQL Server 2012 adds SC (Supplementary Character) collations that support UTF-16. In these collations a single nvarchar character may take 2 or 4 bytes.
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If using maven, usually you put log4j.properties under java or resources?
...ml");
Logger logger = LoggerFactory.getLogger(MyClass.class);
logger.error(message);
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Accessing the logged-in user in a template
...n default('') should be nice when user is NOT login by just avoid annoying error message.
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Why does a function with no parameters (compared to the actual function definition) compile?
...ld consider any build that passes this to be lacking in configured warning/error level though, there's no point in being this allowing for actual code.
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Redirect to Action in another controller
...ng Microsoft.Web.Mvc". you can avoid string part and reduce to getting an error on runtime due to the wrong Action text
– Hiren Patel
May 22 '19 at 13:20
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Use of “global” keyword in Python
... call last):
File "file.py", line 9, in <module>
print(me)
NameError: name 'me' is not defined
While if you use the global statement, the variable will become available "outside" the scope of the function, effectively becoming a global variable.
def bob():
global me
me = "loca...
What does a \ (backslash) do in PHP (5.3+)?
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is it safe to remove it if my server is causing an error?
– Robert Sinclair
Apr 1 '16 at 3:29
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How to install a private NPM module without my own registry?
...y, read. And "name": "git+user:key@bitbucket.org/repo.git" returns several errors including these words remote: Not Found, fatal: repository, Command failed: git clone. Any ideas?
– Thomas Bormans
Feb 3 '16 at 17:59
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NodeJS require a global module/package
...ckage required by old npm
if (!fs.existsSync(packageDir))
throw new Error('Cannot find global module \'' + packageName + '\'');
var packageMeta = JSON.parse(fs.readFileSync(path.join(packageDir, 'package.json')).toString());
var main = path.join(packageDir, packageMeta.main);
return r...
What does the constant 0.0039215689 represent?
...ther words:
x / 255 != x * (1. / 255)
due to floating-point round-off errors.
So while modern compilers may be smart enough to do this optimization, they are not allowed to do it unless you explicitly tell them to via a compiler flag.
Related: Why doesn't GCC optimize a*a*a*a*a*a to (a*a*a)*(...