大约有 43,000 项符合查询结果（耗时：0.0616秒） [XML]
Which annotation should I use: @IdClass or @EmbeddedId
...fication has 2 different ways to specify entity composite keys: @IdClass and @EmbeddedId .
7 Answers
...
Using %f with strftime() in Python to get microseconds
...
Both support %z in Python 3 :-) here's datetime and then time
– adamnfish
Feb 13 '17 at 17:55
...
Spring RestTemplate timeout
...sing Spring's RestTemplate to talk to my service. I've done some research and I've found and used the xml below (in my application xml) which I believe is meant to set the timeout. I'm using Spring 3.0.
...
Check if a temporary table exists and delete if it exists before creating a temporary table
I am using the following code to check if the temporary table exists and drop the table if it exists before creating again. It works fine as long as I don't change the columns. If I add a column later, it will give an error saying "invalid column". Please let me know what I am doing wrong.
...
Creating a temporary directory in Windows?
... get a temp directory name in Windows? I see that I can use GetTempPath and GetTempFileName to create a temporary file, but is there any equivalent to the Linux / BSD mkdtemp function for creating a temporary directory?
...
'id' is a bad variable name in Python
...emoved it. What a poorly named method! A generic, common name used in thousands of places (where context gives meaning). So someone decided to use it as a global name where there is no context?
– Basic
Jul 26 '16 at 14:27
...
How do I calculate the date six months from the current date using the datetime Python module?
...akes care of issues with 28, 30, 31 days etc. This becomes very useful in handling business rules and scenarios (say invoice generation etc.)
$ date(2010,12,31)+relativedelta(months=+1)
datetime.date(2011, 1, 31)
$ date(2010,12,31)+relativedelta(months=+2)
datetime.date(2011, 2, 28)
...
Why are exclamation marks used in Ruby methods?
...oo # prints modified foo
This will output:
a string
In the standard libraries, there are a lot of places you'll see pairs of similarly named methods, one with the ! and one without. The ones without are called "safe methods", and they return a copy of the original with changes applied...
Using numpy to build an array of all combinations of two arrays
... noted that meshgrid only works for smaller range sets, I have a large one and I get error: ValueError: maximum supported dimension for an ndarray is 32, found 69
– mikkom
Oct 20 '19 at 6:54
...
Biggest differences of Thrift vs Protocol Buffers?
What are the biggest pros and cons of Apache Thrift vs Google's Protocol Buffers ?
15 Answers
...