大约有 43,000 项符合查询结果（耗时：0.0726秒） [XML]
pandas resample documentation
So I completely understand how to use resample , but the documentation does not do a good job explaining the options.
2 An...
Is there a difference between “raise exception()” and “raise exception” without parenthesis?
...
The short answer is that both raise MyException and raise MyException() do the same thing. This first form auto instantiates your exception.
The relevant section from the docs says, "raise evaluates the first expression as the exception object. It must be either a subcla...
Difference between clustered and nonclustered index [duplicate]
I need to add proper index to my tables and need some help.
6 Answers
6
...
Efficient method to generate UUID String in JAVA (UUID.randomUUID().toString() without the dashes)
...n efficient utility to generate unique sequences of bytes. UUID is a good candidate but UUID.randomUUID().toString() generates stuff like 44e128a5-ac7a-4c9a-be4c-224b6bf81b20 which is good, but I would prefer dash-less string.
...
LEN function not including trailing spaces in SQL Server
...
Also for varchar etc. this can be collation dependant and not even a straight forward division by 2 is reliable. See example here
– Martin Smith
Jul 13 '13 at 11:33
...
How do I get python's pprint to return a string instead of printing?
...
The pprint module has a command named pformat, for just that purpose.
From the documentation:
Return the formatted representation of object as a string. indent,
width and depth will be passed to the PrettyPrinter constructor as
formatting param...
ORA-12505, TNS:listener does not currently know of SID given in connect descriptor
...e installed Oracle 11g Express Edition Release 2 in my windows 7 64 bit OS and tried to execute JDBC program, then I got the following error:
...
Converting String array to java.util.List
... answered May 17 '11 at 6:02
Andreas DolkAndreas Dolk
106k1515 gold badges165165 silver badges247247 bronze badges
...
Authenticate with GitHub using a token
...ticate ( https://help.github.com/articles/creating-an-access-token-for-command-line-use ). I have tried this, but I still cannot push to GitHub. Please note, I am trying to push from an unauthenticated server (Travis-CI).
...
Entity Framework 6 Code first Default value
...thing like DATETIMEOFFSET, use the , defaultValueSql: "SYSDATETIMEOFFSET", and NOT the defaultValue as this defaultValue: System.DateTimeOffset.Now, will resolve to a string of the current system datetimeoffset value.
– OzBob
Apr 15 '16 at 6:53
...