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How to change an Eclipse default project into a Java project
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@flashdisk it should be in the root directory of the project.
– Chris Marasti-Georg
Apr 16 '15 at 21:08
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How to change column datatype in SQL database without losing data
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ALTER TABLE [Employee] ALTER COLUMN [Salary] NUMERIC(22,5)
if you use MySQL; you should try this script:
ALTER TABLE [Employee] MODIFY COLUMN [Salary] NUMERIC(22,5)
if you use Oracle; you should try this script:
ALTER TABLE [Employee] MODIFY [Salary] NUMERIC(22,5)
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How do I 'git diff' on a certain directory?
...ish defaults to HEAD (where you are at now) and [path] defaults to the git root directory, but can be anything relative to your current directory. Without the --, git will guess what you mean, [commit-ish] or [path]. In some cases, this causes git to say the notation is 'ambiguous'. If I remember co...
Reading a resource file from within jar
... it using getClass().getResourceAsStream("file.txt")
Place the file at the root (after extracting .jar file, it should be in the root), then access it using Thread.currentThread().getContextClassLoader().getResourceAsStream("file.txt")
The first option may not work when jar is used as a plugin.
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how to get request path with express req object
... of a given path, inside of itself it gets to pretend that it's off of the root. That's nice for isolation, but tricky when you don't know how to get what the original full value was. Thanks for posting this!
– juanpaco
Apr 23 '15 at 12:31
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Code coverage for Jest
...After executing jest, you can get coverage report on console and under the root folder set by jest, you will find the coverage report in json and html format.
4) FYI, if you install from npm, you might not get the latest version; so try the github first and make sure the coverage is what you need.
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Alternate output format for psql
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If you looking for equivalent to \G from Mysql, try append \x\g\x to the end of query or define shortcut in ~/.psqlrc adding \set G '\\set QUIET 1\\x\\g\\x\\set QUIET 0', then use on the end :G. (note lack of semicolons)
– Sławomir Lenart
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How can the Euclidean distance be calculated with NumPy?
...t(x^2 + y^2 + z^2)) so we're making a lot of sqrt calls. Math 101:
dist = root ( x^2 + y^2 + z^2 )
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dist^2 = x^2 + y^2 + z^2
and
sq(N) < sq(M) iff M > N
and
sq(N) > sq(M) iff N > M
and
sq(N) = sq(M) iff N == M
In short: until we actually require the distance in a unit of X rather th...
SSH to Vagrant box in Windows?
...different key has to be converted to the Putty's format:
{vagrant_machine_root}/.vagrant/machines/default/virtualbox/private_key
Where {vagrant_machine_root} is a folder with the Vagrantfile of the machine we want to connect to using Putty.
As @ibizaman mentioned use vagrant ssh-config to check ...
Default profile in Spring 3.1
...tartup(ServletContext sc) throws ServletException {
// Create the 'root' Spring application context
final AnnotationConfigWebApplicationContext rootContext = new AnnotationConfigWebApplicationContext();
// Default active profiles can be overridden by the environment variable ...