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ICollection Vs List in Entity Framework
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So.... just for me to understand a bit further - List inherits IList, which inherits ICollection, which inherits IEnumerable?
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Foreign key constraints: When to use ON UPDATE and ON DELETE
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3 Answers
3
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What is Prefix.pch file in Xcode?
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RaffAlRaffAl
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a...
What do @, - and + do as prefixes to recipe lines in Make?
... normally executed. See also the POSIX specification for make and also §9.3 of the GNU Make manual.
The + notation is a (POSIX-standardized) generalization of the de facto (non-standardized) mechanism whereby a command line containing ${MAKE} or $(MAKE) is executed under make -n.
(@ is discusse...
How can I force division to be floating point? Division keeps rounding down to 0?
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In Python 2, division of two ints produces an int. In Python 3, it produces a float. We can get the new behaviour by importing from __future__.
>>> from __future__ import division
>>> a = 4
>>> b = 6
>>> c = a / b
>>> c
0.66666666666666663
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differences in application/json and application/x-www-form-urlencoded
...server that you are posting JSON data as in:
{ Name : 'John Smith', Age: 23}
The second option is telling the web server that you will be encoding the parameters in the URL as in:
Name=John+Smith&Age=23
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Alter MySQL table to add comments on columns
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136
try:
ALTER TABLE `user` CHANGE `id` `id` INT( 11 ) COMMENT 'id of user'
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PostgreSQL naming conventions
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gerardw
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answered May 20 '10 at 22:47
leonbloyleonbloy
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Is type=“text/css” necessary in a tag?
...th the HTML5 spec, but for older versions of HTML is it required.
Html 4 W3.org spec
http://www.w3.org/TR/html40/struct/links.html#edef-LINK
http://www.w3.org/TR/html40/present/styles.html
Type stands for The MIME type of the style sheet. The only supported value I have ever seen is Text/CSS, wh...
Why can I pass 1 as a short, but not the int variable i?
...rst and second Write work but not the last? Is there a way I can allow all 3 of them and detect if it was 1, (int)1 or i passed in? And really why is one allowed but the last? The second being allowed but not the last really blows my mind.
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