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Can a foreign key be NULL and/or duplicate?
Please clarify two things for me:
11 Answers
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Resuming git-svn clone
...bout 6 hours of importing (it's a big repo), my computer went and slept on me. Is there a way to resume the operation without redoing all of the initial work?
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Matplotlib: “Unknown projection '3d'” error
...ion 0.99, try doing this instead of using using the projection keyword argument:
import matplotlib.pyplot as plt
from mpl_toolkits.mplot3d import axes3d, Axes3D #<-- Note the capitalization!
fig = plt.figure()
ax = Axes3D(fig) #<-- Note the difference from your original code...
X, Y, Z = a...
Git reset --hard and push to remote repository
I had a repository that had some bad commits on it (D, E and F for this example).
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What's the point of g++ -Wreorder?
...Wreorder. What this option does is described below. It is not obvious to me why somebody would care (especially enough to turn this on by default in -Wall).
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What is database pooling?
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Database connection pooling is a method used to keep database connections open so they can be reused by others.
Typically, opening a database connection is an expensive operation, especially if the database is remote. You have to open up network sessions, a...
Git diff between current branch and master but not including unmerged master commits
I want a diff of all changes in a branch that is not merged to master yet.
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Can anyone explain python's relative imports?
I can't for the life of me get python's relative imports to work. I have created a simple example of where it does not function:
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How do different retention policies affect my annotations?
...va.lang.annotation.RetentionPolicy constants SOURCE , CLASS , and RUNTIME ?
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How to get the part of a file after the first line that matches a regular expression?
...ines. I want the part of my file after the line which matches my grep statement.
12 Answers
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