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How to find foreign key dependencies in SQL Server?
...hat can be used: https://docs.microsoft.com/en-us/sql/relational-databases/system-stored-procedures/sp-fkeys-transact-sql
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Convert python datetime to epoch with strftime
...
If you want to convert a python datetime to seconds since epoch you could do it explicitly:
>>> (datetime.datetime(2012,04,01,0,0) - datetime.datetime(1970,1,1)).total_seconds()
1333238400.0
In Python 3.3+ you can use timestamp(...
How to prettyprint a JSON file?
...when I created this example image. It doesn't seem to be working now on my system as well.
– Shubham Chaudhary
Jan 30 '18 at 9:19
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Integer.valueOf() vs. Integer.parseInt() [duplicate]
...g a NullPointerException when pulling an int from a database and trying to convert it from String to int in Java. NOT String to Integer. I had to switch to Integer.parseInt() instead.
– anon58192932
Sep 28 '15 at 20:08
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Difference between float and decimal data type
...nversion functions would often create tons of minute differences in values converted from ASCII to float when compared against those in, say, SQLServer. This is rarely true anymore. Testing is the best policy, as it's best to know for certain what the trade-offs are.
– user1899...
Sleeping in a batch file
... following sleep.py script and add it somewhere in your PATH:
import time, sys
time.sleep(float(sys.argv[1]))
It will allow sub-second pauses (for example, 1.5 sec, 0.1, etc.), should you have such a need. If you want to call it as sleep rather than sleep.py, then you can add the .PY extension to ...
Can a C# lambda expression have more than one statement?
...pression using braces, but only the syntax which doesn't use braces can be converted into an expression tree:
// Valid
Func<int, int> a = x => x + 1;
Func<int, int> b = x => { return x + 1; };
Expression<Func<int, int>> c = x => x + 1;
// Invalid
Expression...
What is the perfect counterpart in Python for “while not EOF”
....
You can do the same with the stdin (no need to use raw_input():
import sys
for line in sys.stdin:
do_something()
To complete the picture, binary reads can be done with:
from functools import partial
with open('somefile', 'rb') as openfileobject:
for chunk in iter(partial(openfileobj...
Automatically import modules when entering the python or ipython interpreter
...s .startup.py file
print("(.startup.py)")
import datetime, os, pprint, re, sys, time
print("(imported datetime, os, pprint, re, sys, time)")
pp = pprint.pprint
Then define PYTHONSTARTUP=~/.startup.py, and Python will use it when starting a shell.
The print statements are there so when I start th...
machine learning libraries in C# [closed]
...; example.Count; i++)
{
instance.setValue(attributes[i], Convert.ToDouble(example[i]));
}
instances.add(instance);
}
return instances;
}
}
public static class Classifier
{
public static TClassifier Build<TClassifier>(TrainingSet training...