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SQL JOIN and different types of JOINs
...Note that a JOIN without any other JOIN keywords (like INNER, OUTER, LEFT, etc) is an INNER JOIN. In other words, JOIN is
a Syntactic sugar for INNER JOIN (see: Difference between JOIN and INNER JOIN).
2. OUTER JOIN :
OUTER JOIN retrieves
Either,
the matched rows from one table and all row...
Image width/height as an attribute or in CSS? [duplicate]
... would have to be redrawn for floated elements, specified padding, margins etc.
Whether to specify in html or css is best judged on individual circumstances. A large number of images of the same size would probably be best served with css, a single image with html. That said, if you are specifying ...
Finding local IP addresses using Python's stdlib
...s won't work always (returns 127.0.0.1 on machines having the hostname in /etc/hosts as 127.0.0.1), a paliative would be what gimel shows, use socket.getfqdn() instead. Of course your machine needs a resolvable hostname.
sha...
How to set host_key_checking=false in ansible inventory file?
...al:
Ansible User Guide - Host Key Checking
You can do it either in the /etc/ansible/ansible.cfg or ~/.ansible.cfg file:
[defaults]
host_key_checking = False
Or you can setup and env variable (this might not work on newer ansible versions):
export ANSIBLE_HOST_KEY_CHECKING=False
...
MongoDB mongorestore failure: locale::facet::_S_create_c_locale name not valid
...
this basically helped me. but also had to edit /etc/locale.gen and enable the needed locales (on arch linux)
– Marian Theisen
Jan 28 '14 at 16:27
...
git ignore vim temporary files
... Vim will create successively named swap files (.swp, .swo, etc.), so I use .*.sw* in my .gitignore to hide them all.
– Drew Stephens
May 20 '11 at 1:15
33
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UnicodeDecodeError: 'ascii' codec can't decode byte 0xe2 in position 13: ordinal not in range(128)
... error related... Using the following command:
grep -r -P '[^\x00-\x7f]' /etc/apache2 /etc/letsencrypt /etc/nginx
Found mine in
/etc/letsencrypt/options-ssl-nginx.conf: # The following CSP directives don't use default-src as
Using shed, I found the offending sequence. It turned out to...
Why does sudo change the PATH?
...d binary folders in
the PATH. Having already added my
requirements to /etc/environment I was
surprised when I got errors about
missing commands when running them
under sudo.....
I tried the following to fix this
without sucess:
Using the "sudo -E" option - did not work. My ...
When to use the different log levels
...diagnostically helpful to people more than just developers (IT, sysadmins, etc.).
Info - Generally useful information to log (service start/stop, configuration assumptions, etc). Info I want to always have available but usually don't care about under normal circumstances. This is my out-of-the-box c...
@ variables in Ruby on Rails
...silent dup of variable, or making it 'const' so that it can't be modified, etc)? I'm coming from a C/C++ & Java perspective, and the really vague and optional syntax is driving me nuts!
– Dan Devine
Jun 13 '18 at 18:05
...