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SQL select only rows with max value on a column [duplicate]
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I had no idea this feature existed. Dug deeply into a bunch of manuals this evening. This makes so much more sense than left joins (just from a lack of frustration perspective).
– Andrew Philips
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Pass a parameter to a fixture function
...e of pytest. This feature is available from pytest_cases, and the original idea was suggested by Sup3rGeo.
import pytest
from pytest_cases import param_fixture
# create a single parameter fixture
var = param_fixture("var", [['var1', 'var2']], ids=str)
@pytest.fixture
def tester(var):
"""Create...
Input and output numpy arrays to h5py
...w. I can read the contents with h5py, but not inspect it with HDFView. Any idea why?
– Martin Thoma
May 3 '19 at 9:41
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Is String.Format as efficient as StringBuilder
...ring.Format uses StringBuilder internally...so logically that leads to the idea that it would be a little less performant due to more overhead. However, a simple string concatenation is the fastest method of injecting one string between two others...by a significant degree. This evidence was demonst...
What's the best practice for primary keys in tables?
...rust the personnel officer. People leave, new ones come and have different ideas. Provide them with access to the identifier they think is unique/ they want to use, but internally for the db, dba should be making their own decision
– Dave Pile
Apr 17 '17 at 7:0...
What is the difference between List (of T) and Collection(of T)?
... looks for IList, IList<T>, List<T> etc. In short, you have no idea whether it will be called. Polymorphism fixes this.
– Marc Gravell♦
Mar 11 '11 at 18:29
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How do I provide a username and password when running “git clone git@remote.git”?
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never a good idea to type your password in command line. Did you know your system may store command line history in a file? (Ex: Linux has an hidden file named .bash_history)
– augusto
Feb 6 '19 at 2...
How to send POST request?
...wer say "If you really want to handle with HTTP using Python"? is it a bad idea to handle HTTP requests? if so, why? can anyone explain please?
– Jan Pisl
Oct 29 '19 at 17:02
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What does a tilde do when it precedes an expression?
...edit — actually it's the second ~ that is applied first, but you get the idea.)
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Creating a config file in PHP
...ass? I read in security article that creating global variables isnt a good idea so what do you suggest?
– Kevlwig
Feb 11 '18 at 1:14
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