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Oracle Differences between NVL and Coalesce
...r are numeric data type or any nonnumeric data type that can be implicitly converted to a numeric data type, then Oracle Database determines the argument with the highest numeric precedence, implicitly converts the remaining arguments to that data type, and returns that data type.. Actually this is ...
What's the best way to parse command line arguments? [closed]
...2
3
True
Incorrect arguments:
$ ./app foo 2 --opt_arg 3 --switch
usage: convert [-h] [--opt_arg OPT_ARG] [--switch] pos_arg [opt_pos_arg]
app: error: argument pos_arg: invalid int value: 'foo'
$ ./app 11 2 --opt_arg 3
Argument values:
11
2
3
False
usage: app [-h] [--opt_arg OPT_ARG] [--switch] p...
Length of an integer in Python
...th of an integer as in the number of digits in the integer, you can always convert it to string like str(133) and find its length like len(str(123)).
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How to Calculate Execution Time of a Code Snippet in C++
...HighDateTime;
uint64 ret = li.QuadPart;
ret -= 116444736000000000LL; /* Convert from file time to UNIX epoch time. */
ret /= 10000; /* From 100 nano seconds (10^-7) to 1 millisecond (10^-3) intervals */
return ret;
#else
/* Linux */
struct timeval tv;
gettimeofday(&tv, NULL);
uint64 ...
How to prompt for user input and read command-line arguments [closed]
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In Python 2.7, input() doesn't convert values to strings. So if you try to do this: input_variable1 = input ("Enter the first word or phrase: "), you will get an error: Traceback (most recent call last): return eval(raw_input(prompt)) File "<st...
How do I convert a IPython Notebook into a Python file via commandline?
...'t want to restart the IPython kernel:
On the command line, you can use nbconvert:
$ jupyter nbconvert --to script [YOUR_NOTEBOOK].ipynb
As a bit of a hack, you can even call the above command in an IPython notebook by pre-pending ! (used for any command line argument). Inside a notebook:
!jupy...
Suppress Scientific Notation in Numpy When Creating Array From Nested List
....32, 4.32],
[13.76, 1227, 1737874137.5, 1446511574.32, 4.32]]
#convert python list of lists to numpy ndarray called my_array
my_array = np.array(my_list)
#This is a little recursive helper function converts all nested
#ndarrays to python list of lists so that pretty printer knows what ...
Detect & Record Audio in Python
...because they compute on bytes and not shorts. That buffer would have to be converted into a numpy array before processing.
– ArekBulski
Feb 16 '17 at 14:46
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How can I check if a string represents an int, without using try/except?
...integer part before the decimal, unless the floating point number is first converted to a string.
The check_int() function returns false for values like 0.0 and 1.0 (which technically are integers) and returns true for values like '06'.
Here are the current (Python 3.5) test results:
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Generate MD5 hash string with T-SQL
...
CONVERT(VARCHAR(32), HashBytes('MD5', 'email@dot.com'), 2)
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