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How to implement one-to-one, one-to-many and many-to-many relationships while designing tables?
Can anyone explain how to implement one-to-one, one-to-many and many-to-many relationships while designing tables with some examples?
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How to select date without time in SQL
When I select date in SQL it is returned as 2011-02-25 21:17:33.933 . But I need only the Date part, that is 2011-02-25 . How can I do this?
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How do I find files with a path length greater than 260 characters in Windows?
...Along with it, only a shortened path is printed. eg: D:\Dropbox\ProY...sh._setbinddata. Those are exactly the paths i want to find, but I cant see the whole path! Any way around this?
– MiniGod
Jan 13 '15 at 0:32
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What is the method for converting radians to degrees?
I run into this occasionally and always forget how to do it.
12 Answers
12
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How can I do division with variables in a Linux shell?
... editor after snippets, if snippets enabled
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How to subtract a day from a date?
...ld be careful to avoid errors around DST transitions (or changes in UTC offset for other reasons):
from datetime import datetime, timedelta
from tzlocal import get_localzone # pip install tzlocal
DAY = timedelta(1)
local_tz = get_localzone() # get local timezone
now = datetime.now(local_tz) # ge...
Why are Perl 5's function prototypes bad?
...ignatures does run time argument counting, variable assigning, and default setting:
use v5.20;
use feature qw(signatures);
no warnings qw(experimental::signatures);
animals( 'Buster', 'Nikki', 'Godzilla' );
sub animals ($cat, $dog, $lizard = 'Default reptile') {
say "The cat is $cat";
sa...
Add only non-whitespace changes
... the whitespaces left.
The --no-color isn't required but as I have colors set to always, I have to use it. Anyway, better safe than sorry.
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What is non-blocking or asynchronous I/O in Node.js?
...alert(1);
alert(2);
alert(3);
Asynchronous: 1,3,2
alert(1);
setTimeout(() => alert(2), 0);
alert(3);
Blocking vs Non-blocking
Blocking refers to operations that block further execution until that operation finishes. Non-blocking refers to code that doesn't block execution....
Index of Currently Selected Row in DataGridView
It's that simple. How do I get the index of the currently selected Row of a DataGridView ? I don't want the Row object, I want the index (0 .. n).
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