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Rails and PostgreSQL: Role postgres does not exist
...e earlier, this is because postgresql does not have default role the first time it is set up. And we need to set that.
sovanlandy=# CREATE ROLE postgres LOGIN;
You must log in to your respective psql console to use this psql command.
Also noted that, if you already created the role 'postgre' but...
Add a properties file to IntelliJ's classpath
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I've done that about 50 times, I just did it again. My output isn't changing even though I changed the layout conversion pattern to something that would have been obvious. I'm wondering if another log4j.properties is in my classpath.
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typedef struct vs struct definitions [duplicate]
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@underscore_d: At the time, people recognized the value in having code which could work equally well as C and C++, and wanted to avoid creating needless barriers to compatibility. Sadly, such thinking is no longer fashionable.
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Capitalize the first letter of both words in a two word string
... This can work alright when needed to be called a small number of times, but using stringr::str_to_title sped my code up by a factor of about 15 versus tools::toTitleCase.
– Max Candocia
Sep 1 at 5:22
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How to extract an assembly from the GAC?
...iginal DLL file and
refer to it in the project at
development (design) time, which uses
the assembly from GAC during run-time
of the project.
During execution (run-time) if the
assembly is found to be signed and
deployed in GAC the CLR automatically
picks up the assembly from the ...
Is it good practice to use java.lang.String.intern()?
... Need to clarify - interning always happens automatically for compile-time constant Strings (literals & fixed expressions). Additionally it occurs when String.intern() is called on runtime dynamically evaluated Strings.
– Glen Best
May 28 '13 at 5:57
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Is this a “good enough” random algorithm; why isn't it used if it's faster?
..., depending on the initial seeds, while the MR distribution is stable. Sometimes it reaches the desired uniform distribution, but more than often it doesn't. Here's one of the more extreme examples, it's even beyond the borders of the graph:
QR distribution |8000 |9000 |10000 |11000 |...
`static` keyword inside function?
... I believe if condition check $cache === null would be executed every time this function is called, thought not if's block code $cache = '..' would be executed.
– Aivaras
Aug 20 '15 at 9:00
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css3 transition animation on load?
...y the animation from starting */
animation-iteration-count: 1; /* how many times the animation will play */
animation-name: slideInFromLeft; /* the name of the animation we defined above */
You can do all sorts of interesting things, like sliding in content, or drawing attention to areas.
Here's wh...
What is better, adjacency lists or adjacency matrices for graph problems in C++?
...rder to code , do you think they the implementation is worth spending some time learning it?
– magiix
Feb 7 '10 at 21:05
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