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Possible to do a MySQL foreign key to one of two possible tables?
Well here's my problem I have three tables; regions, countries, states. Countries can be inside of regions, states can be inside of regions. Regions are the top of the food chain.
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MySQL “incorrect string value” error when save unicode string in Django
...trange error message when tried to save first_name, last_name to Django's auth_user model.
9 Answers
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How to keep environment variables when using sudo
When I use any command with sudo the environment variables are not there. For example after setting HTTP_PROXY the command wget works fine without sudo . However if I type sudo wget it says it can't bypass the proxy setting.
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MySQL DROP all tables, ignoring foreign keys
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I found the generated set of drop statements useful, and recommend these tweaks:
Limit the generated drops to your database like this:
SELECT concat('DROP TABLE IF EXISTS `', table_name, '`;')
FROM information_schema.tables...
Error 908: Permission Receive SMS - #5 by Taifun - MIT App Inventor Help - MIT App Inventor Community
:root {
--animation-state: paused;
}
/* user picked a theme where the "regular" scheme is dark */
/* user picked a theme a light scheme and also enabled a dark scheme */
/* deal with light scheme first */
@media (pref...
How do I modify fields inside the new PostgreSQL JSON datatype?
With postgresql 9.3 I can SELECT specific fields of a JSON data type, but how do you modify them using UPDATE? I can't find any examples of this in the postgresql documentation, or anywhere online. I have tried the obvious:
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How to preview git-pull without doing fetch?
... fetch, do a git log HEAD..origin/master to show the log entries between your last common commit and the origin's master branch. To show the diffs, use either git log -p HEAD..origin/master to show each patch, or git diff HEAD...origin/master (three dots not two) to show a single diff.
There normal...
psql: FATAL: Ident authentication failed for user “postgres”
I have installed PostgreSQL and pgAdminIII on my Ubuntu Karmic box.
23 Answers
23
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How can I add or update a query string parameter?
With javascript how can I add a query string parameter to the url if not present or if it present, update the current value? I am using jquery for my client side development.
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(Mac) -bash: __git_ps1: command not found
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You've installed the version of git-completion.bash from master - in git's development history this is after a commit that split out the __git_ps1 function from the completion functionality into a new file (git-prompt.sh). The...