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Rails and PostgreSQL: Role postgres does not exist
...eriod so I did a fresh install so I must have a couple of instance on here now. Changed the port in the database.yml file though and it all worked fine. Thanks for your help!
– Adam
Oct 23 '11 at 17:03
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When would I use XML instead of SQL? [closed]
I've been working on database-driven web applications for a few years now and recently took on a project involving a CMS that is XML-capable. This has led me to think about the usage of XML/XSLT in general and in what situations it would be more useful than the approach I've always used, which is st...
Why can't Python find shared objects that are in directories in sys.path?
...to my user to read the library after setting the LD_LIBRARY_PATH variable. Now it finally works.
– José Ricardo
Jul 31 '13 at 13:41
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Keep SSH session alive [closed]
...ias:
alias sshprod='ssh -v -o ServerAliveInterval=60 myname@myhost.com'
Now can connect like this:
me@MyMachine:~$ sshprod
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Cache Invalidation — Is there a General Solution?
...the 'rules' of the system as a result of the combined behaviour.
If you know that a always has validity if b does then you can arrange your cache like so (pseudocode):
private map<b,map<a,c>> cache //
private func realFunction // (a,b) -> c
get(a, b)
{
c result;
map&l...
Style input element to fill remaining width of its container
...it will be a long time before I get to try this. I'm on the sys admin team now, don't do as much web stuff any more.
– Joel Coehoorn
Jul 9 '14 at 13:28
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Which is better, return value or out parameter?
... over the head with this, it also makes it less friendly for those who do know what they're doing. The nice thing about an exception rather than a return value is that you can't easily ignore it and carry on as if nothing happened... whereas with both a return value and an out parameter, you can jus...
Primary key or Unique index?
...e a composed primary key (person_id, car_id)?
– unbeknown
Jan 28 '09 at 12:20
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primary key (pers...
CSS @font-face not working with Firefox, but working with Chrome and IE
...m suspecting it to be a problem of how my CSS files are included, cause I know Firefox is not too friendly about cross-domain imports.
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How can I lookup a Java enum from its String value?
...nly move on later to Map implementation if your profiler tells you to.
I know it's iterating over all the values, but with only 3 enum values it's hardly worth any other effort, in fact unless you have a lot of values I wouldn't bother with a Map it'll be fast enough.
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