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What's wrong with foreign keys?
...n get nice "on delete cascade" behavior, automatically cleaning up tables
knowing about the relationships between tables in the database helps the Optimizer plan your queries for most efficient execution, since it is able to get better estimates on join cardinality.
FKs give a pretty big hint on wh...
Intelligent point label placement in R
...se until they looked good. Then I exported to a PNG for uploading to SO.)
Now, before you succumb to the strong urge to down vote this into oblivion and leave snarky comments about how the point is to automate this process, hear me out!
Looking for algorithmic solutions is totally fine, and (IMHO)...
How can I save an image to the camera roll?
...r your patience qegal. I haven't had a chance to revisit this issue until now. Your EDIT us super helpful. The image is in the app's bundle. There are several images in the app and they can be viewed as small thumbnails. When a small thumbnail is selected it goes to a new view and a fullscreen v...
git status shows modifications, git checkout — doesn't remove them
...
Okay... so that did it... now git status shows no changes. I've read up on the autocrlf settings, and I just can't seem to get it right.
– rbellamy
Jan 6 '10 at 21:45
...
Make .gitignore ignore everything except a few files
... in anything other than the root dir won't be found anyway. I'm using this now (with *.pl) and all *.pl files are being ignored even though there are many in the subdirectories below the .gitignore file
– PandaWood
Nov 6 '11 at 1:44
...
How to split one string into multiple strings separated by at least one space in bash shell?
...individual elements:
sentence="this is a story"
stringarray=($sentence)
now you can access individual elements directly (it starts with 0):
echo ${stringarray[0]}
or convert back to string in order to loop:
for i in "${stringarray[@]}"
do
:
# do whatever on $i
done
Of course looping thr...
What does the “map” method do in Ruby?
..., convert each element by some rule
names.map! {|name| name.capitalize } # now names contains ['Danil', 'Edmund']
names.each { |name| puts name + ' is a programmer' } # here we just do something with each element
The output:
Danil is a programmer
Edmund is a programmer
...
“Incorrect string value” when trying to insert UTF-8 into MySQL via JDBC?
... still not write international text into db getting same failure as above
Now using this how-to-convert-an-entire-mysql-database-characterset-and-collation-to-utf-8
Update all your db to use utf8mb4
ALTER DATABASE YOURDB CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
Run this query that giv...
What is the best way to detect a mobile device?
...ackberry|iemobile|opera mini/i.test(navigator.userAgent.toLowerCase()));
Now $.browser will return "device" for all above devices
Note: $.browser removed on jQuery v1.9.1. But you can use this by using jQuery migration plugin Code
A more thorough version:
var isMobile = false; //initiate as f...
How to generate UML diagrams (especially sequence diagrams) from Java code?
...id, then install GEF from download.eclipse.org/tools/gef/updates/releases Now copy-paste licence from email to Window->Preferences->ObjectAid How to create diagram? objectaid.com/class-diagram
– rluks
Apr 5 '13 at 22:01
...