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MySQL select where column is not empty
In MySQL, can I select columns only where something exists?
13 Answers
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Can we instantiate an abstract class?
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Here, i'm creating instance of my class
No, you are not creating the instance of your abst...
When monkey patching an instance method, can you call the overridden method from the new implementat
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3 Answers
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How do you clone a Git repository into a specific folder?
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3366
Option A:
git clone git@github.com:whatever folder-name
Ergo, for right here use:
git clone ...
What is the “->” PHP operator called and how do you say it when reading code out loud? [closed]
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The official name is "object operator" - T_OBJECT_OPERATOR. I call it "arrow".
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Eventual consistency in plain English
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Eventual consistency:
I watch the weather report and learn that it's going to rain tomorrow.
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Explicit specialization in non-namespace scope [duplicate]
...in this case - explicit specializations have to be at namespace scope. C++03, §14.7.3/2:
An explicit specialization shall be declared in the namespace of which the template is a member, or, for member templates, in the namespace of which the enclosing class or enclosing class template is a memb...
Drop rows with all zeros in pandas data frame
...0,1,0,1]})
> df = df[(df.T != 0).any()]
> df
a b
1 0 1
2 1 0
3 1 1
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Is 23,148,855,308,184,500 a magic number, or sheer chance?
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Add the cents to the number and you get 2314885530818450000, which in hexadecimal is 2020 2020 2020 1250.
Do you see the pattern? The first six bytes have been overwritten by spaces (hex 20, dec 32).
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