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SQLite - UPSERT *not* INSERT or REPLACE
...the table: ID, NAME, ROLE
BAD: This will insert or replace all columns with new values for ID=1:
INSERT OR REPLACE INTO Employee (id, name, role)
VALUES (1, 'John Foo', 'CEO');
BAD: This will insert or replace 2 of the columns... the NAME column will be set to NULL or the default value:
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How do I sort unicode strings alphabetically in Python?
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IBM's ICU library does that (and a lot more). It has Python bindings: PyICU.
Update: The core difference in sorting between ICU and locale.strcoll is that ICU uses the full Unicode Collation Algorithm while strcoll uses ISO 14651.
The differences between those two alg...
Why do we use Base64?
...e used for different purposes.
When you encode text in ASCII, you start with a text string and convert it to a sequence of bytes.
When you encode data in Base64, you start with a sequence of bytes and convert it to a text string.
To understand why Base64 was necessary in the first place we need...
Should sorting logic be placed in the model, the view, or the controller? [closed]
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(Note: this quote and citation is taken from @dasblinkenlight's answer, but we disagree on our interpretation of it. read his post and make up your own mind).
According to MVC description,
A controller can send commands to its associated view ...
How to stop Gradle task execution in Android Studio?
Is there any legitimate way of Gradle task(s) execution stopping in Android Studio?
16 Answers
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What is the leading LINQ for JavaScript library? [closed]
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I was going to suggest this but it's not really the same as linq to objects. (If it was, why would we need both Rx and Linq to Objects in .NET?) It works in the opposite direction to normal Linq in terms of the flow of data.
– Daniel E...
How to center a “position: absolute” element
I'm having a problem centering an element that has the attribute position set to absolute .
Does anyone know why the images are not centered?
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Should I use int or Int32
...ing, but I've read a number of times that int is preferred over Int32 with no reason given. Is there a reason, and should I care?
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How do I disable “missing docstring” warnings at a file-level in Pylint?
...ocstrings. I try and add docstrings to each class, method and function but it seems that Pylint also checks that files should a docstring at the beginning of it. Can i disable this somehow? I would like to be notified of a docstring is missing inside a class, function or method but it shouldn't be m...
Python subprocess.Popen “OSError: [Errno 12] Cannot allocate memory”
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As a general rule (i.e. in vanilla kernels), fork/clone failures with ENOMEM occur specifically because of either an honest to God out-of-memory condition (dup_mm, dup_task_struct, alloc_pid, mpol_dup, mm_init etc. croak), or because security_vm_enough_memory_mm failed you while enforcing t...