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Query a parameter (postgresql.conf setting) like “max_connections”
Does anyone know if it's even possible (and how, if yes) to query a database server setting in PostgreSQL (9.1)?
1 Answer
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What is the difference between JDK and JRE?
What is the difference between JDK and JRE?
20 Answers
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Use grep --exclude/--include syntax to not grep through certain files
...g it, such as --include="*.{cpp,h}", would work just as well). Otherwise, if you had any files in the current working directory that matched the pattern, the command line would expand to something like grep pattern -r --include=foo.cpp --include=bar.h rootdir, which would only search files named fo...
Piping both stdout and stderr in bash?
It seems that newer versions of bash have the &> operator, which (if I understand correctly), redirects both stdout and stderr to a file ( &>> appends to the file instead, as Adrian clarified).
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How to pass an ArrayList to a varargs method parameter?
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This will not work without a warning if there are further templates involved. E.g. someMethod(someList.toArray(new ArrayList<Something>[someList.size()])) will give you a warning that is very annoying if the function is more than a few lines long (because ...
Simplest way to do a recursive self-join?
...e parent node is defined by the topmost (anchor) query in the WITH clause. If you need specifics, please create a fiddle on sqlfiddle.com and post the link here.
– Quassnoi
Nov 25 '14 at 22:31
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Sublime Text 3, convert spaces to tabs
...orthy here is that in Sublime when you select the indentation in your code if it is a tab you should see a straight line ---- and if it is spaced you see dots ....
– Shahroq
Sep 20 at 6:37
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AngularJS HTTP post to PHP and undefined
...$email = $request->email;
$pass = $request->password;
Alternately, if you are heavily relying on $_POST functionality, you can form a query string like email=someemail@email.com&password=somepassword and send that as data. Make sure that this query string is URL encoded. If manually buil...
How does BLAS get such extreme performance?
...evel1 functions. However, you can boost the performance of this functions if you can provide a dedicated implementation that makes use of some multiprocessor architecture with shared memory.
Level 3 functions are operations like the matrix-matrix product. Again you could implement them in terms o...
Turn Pandas Multi-Index into column
... case but could be helpful for others (like myself 5 minutes ago) to know. If one's multindex have the same name like this:
value
Trial Trial
1 0 13
1 3
2 4
2 0 NaN
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