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Checking for NULL pointer in C/C++ [closed]
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206
In my experience, tests of the form if (ptr) or if (!ptr) are preferred. They do not depend on ...
DbArithmeticExpression arguments must have a numeric common type
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edited Dec 14 '17 at 11:03
community wiki
7 r...
How to get min/max of two integers in Postgres/SQL?
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306
Have a look at GREATEST and LEAST.
UPDATE my_table
SET my_column = GREATEST(my_column - 10, 0)...
Entity Framework - Start Over - Undo/Rollback All Migrations
... to rollback all migrations you can use:
Update-Database -TargetMigration:0
or equivalent:
Update-Database -TargetMigration:$InitialDatabase
In some cases you can also delete database and all migration classes.
share
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How to add texture to fill colors in ggplot2
... Claus Wilke
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answered Jun 10 '10 at 1:08
AndreasAndreas
5,8841010 gold ba...
Rotating and spacing axis labels in ggplot2
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Change the last line to
q + theme(axis.text.x = element_text(angle = 90, vjust = 0.5, hjust=1))
By default, the axes are aligned at the center of the text, even when rotated. When you rotate +/- 90 degrees, you usually want it to be aligned at the edge instead:
The image above is from thi...
pyplot axes labels for subplots
...mmon labels.
import random
import matplotlib.pyplot as plt
x = range(1, 101)
y1 = [random.randint(1, 100) for _ in xrange(len(x))]
y2 = [random.randint(1, 100) for _ in xrange(len(x))]
fig = plt.figure()
ax = fig.add_subplot(111) # The big subplot
ax1 = fig.add_subplot(211)
ax2 = fig.add_subpl...
regex for zip-code
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edited Apr 5 '10 at 6:57
answered Apr 5 '10 at 6:45
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Xcode stops working after set “xcode-select -switch”
... JimJim
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3
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How to override Backbone.sync?
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edited Oct 20 '15 at 22:29
Yura
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answered Feb 23 ...