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Can a foreign key be NULL and/or duplicate?
Please clarify two things for me:
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ASP.NET: Session.SessionID changes between requests
Why does the property SessionID on the Session -object in an ASP.NET-page change between requests?
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Readonly Properties in Objective-C?
I have declared a readonly property in my interface as such:
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Forced naming of parameters in Python
In Python you may have a function definition:
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Is passing 'this' in a method call accepted practice in java
Is it good/bad/acceptable practice to pass the current object in a method call. As in:
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How to add a jar in External Libraries in android studio
I am new to Android Studio. What I need to do is add a few jar files in the External Libraries below the < JDK > folder.
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Why is it slower to iterate over a small string than a small list?
I was playing around with timeit and noticed that doing a simple list comprehension over a small string took longer than doing the same operation on a list of small single character strings. Any explanation? It's almost 1.35 times as much time.
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Seeking clarification on apparent contradictions regarding weakly typed languages
I think I understand strong typing , but every time I look for examples for what is weak typing I end up finding examples of programming languages that simply coerce/convert types automatically.
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Change IPython/Jupyter notebook working directory
...--notebook-dir=/Users/yourname/folder1/folder2/
You can of course set it in your profiles if needed, you might need to escape backslash in Windows.
Note that this will override whatever path you might have set in a jupyter_notebook_config.py file. (Where you can set a variable c.NotebookApp.note...
Best way to do multi-row insert in Oracle?
I'm looking for a good way to perform multi-row inserts into an Oracle 9 database. The following works in MySQL but doesn't seem to be supported in Oracle.
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