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Foreign key constraints: When to use ON UPDATE and ON DELETE
...d once you'll get used to database consistency you'll love PostgreSQL.
12/2017-Updating this Edit about MySQL:
as stated by @IstiaqueAhmed in the comments, the situation has changed on this subject. So follow the link and check the real up-to-date situation (which may change again in the future).
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Resolving MSB3247 - Found conflicts between different versions of the same dependent assembly
...the appropriate setting depending on your version:
Diagnostics when on VS2012, VS2013 or VS2015 (the message in these versions says you should use "Detailed", but this is plain wrong, you should use "Diagnostics")
Detailed when you're on VS2010
Normal will suffice in VS2008 or older.
Build the pr...
How to replace a character by a newline in Vim
...:'; xxd test) >> output.txt
more output.txt
Before:
0000000: 6261 720a bar.
After:
0000000: 000a 720a ..r.
In other words, \n has inserted the byte 0x00 into the text; \r has inserted the byte 0x0a.
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How do I view all commits for a specific day?
...hn Bartholomew!
The answer is to specify the time, e.g. git log --after="2013-11-12 00:00" --before="2013-11-12 23:59"
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How to test which port MySQL is running on and whether it can be connected to?
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209
To find a listener on a port, do this:
netstat -tln
You should see a line that looks like t...
Difference between Lookup() and Dictionary(Of list())
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answered May 20 '16 at 9:38
Noble_Bright_LifeNoble_Bright_Life
45933 gold badges99 silver badges1616 bronze badges
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JavaScript OOP in NodeJS: how?
...ins the core concepts far better than any answer here.
With ES6 (released 2015) we got a "class" keyword which allows us to use Javascript "classes" like we would with Java, C++, C#, Swift, etc.
Screenshot from the video showing how to write and instantiate a Javascript class/subclass:
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How to check visibility of software keyboard in Android?
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NEW ANSWER added Jan 25th 2012
Since writing the below answer, someone clued me in to the existence of ViewTreeObserver and friends, APIs which have been lurking in the SDK since version 1.
Rather than requiring a custom Layout type, a much simpler ...
What is an alternative to execfile in Python 3?
...luding the './' as well
– JoeyC
Feb 20 '14 at 0:20
25
Less trivially, this doesn't provide line n...
Use find command but exclude files in two directories
...e it happy.
– peelman
Nov 12 '13 at 20:08
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