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How do you effectively model inheritance in a database?
... (such as reports, querying, multi-application use, business intelligence, etc.) then I do not recommend any kind of a simple mapping from objects to tables.
Many people think of a row in a database table as an entity (I spent many years thinking in those terms), but a row is not an entity. It is a...
Is it possible to include a file in your .gitconfig
...vid obviously wants to push up a repo of all his dot files (bashrc, gemrc, etc.) INCLUDING his .gitconfig so he can have all his settings on all his machines.
A way to push parts of a .gitconfig file by including and ignoring private entries is what he (and I, for that matter) is after.
A possib...
LaTeX Optional Arguments
... \includegraphics[width=350 pt]{#3}
\temp %see above for caption etc.
\label{#2}
\end{center}
\end{figure}
}
In this case I only check for the single, "optional" argument that \newcommand{} provides. If you were to set it up for, say, 3 "optional" args, you'd still have to s...
Principal component analysis in Python
... def pc( self ):
""" e.g. 1000 x 2 U[:, :npc] * d[:npc], to plot etc. """
n = self.npc
return self.U[:, :n] * self.d[:n]
# These 1-line methods may not be worth the bother;
# then use U d Vt directly --
def vars_pc( self, x ):
n = self.npc
retu...
MySQL indexes - what are the best practices?
...index all columns, no columns, which indexes should span multiple columns, etc. It depends on the queries you need to run.
Yes, there is some overhead so you shouldn't create indexes needlessly. But you should create the indexes that give benefit to the queries you need to run quickly. The overh...
How to copy an object in Objective-C
...lways, it's not what you want. Objects have internal state, other objects, etc, and often make assumptions that they're the only ones holding references to that data. Bitwise copies break this assumption.
A deep, logical copy. In this, we make a copy of the object, but without actually doing it bit ...
Git: Find the most recent common ancestor of two branches
...
@ADTC Use a graphical commit viewer, e.g. gitk, etc. to see what the tree looks like. Maybe you will get your answer.
– Acumenus
Oct 21 '17 at 3:19
...
What are JavaScript's builtin strings?
...g code golf and have been making it shorter, replacing parts with more 1s, etc.
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Generic Repository With EF 4.1 what is the point
...ic" and my repositories have the standard CRUD operations (update, delete, etc). I have long since moved to Entity Framework. Upon doing so, I did not need to change anything in my ViewModel classes or beyond because they pointed to my repository--I only needed to change the inside of my repository....
How can I see all the issues I'm watching on Github?
.../3",
"repository_url": "https://api.github.com/repos/owner1/repoA",
...etc...
Or use this command to format the output as a list of links to the issues:
curl --user "MyUserName" https://api.github.com/issues?filter=subscribed | \
grep '"url"' | grep -o 'https://api.github.com/repos/.*/iss...