大约有 42,000 项符合查询结果(耗时:0.0565秒) [XML]

https://stackoverflow.com/ques... 

How to get current CPU and RAM usage in Python?

...") objSWbemServices = objWMIService.ConnectServer(strComputer,"root\cimv2") query_str = '''Select * from %s%s''' % (self.win32_perf_base,counter_type) colItems = objSWbemServices.ExecQuery(query_str) # "Select * from Win32_PerfFormattedData_PerfProc_Process")# ch...
https://stackoverflow.com/ques... 

XmlSerializer: remove unnecessary xsi and xsd namespaces

...igure the XmlSerializer so that it doesn't write default namespaces in the root element? 4 Answers ...
https://stackoverflow.com/ques... 

Expand Python Search Path to Other Source

...bspath(os.path.curdir) abspath = os.path.join(cwd, folder) for root, dirs, files in os.walk(abspath): for f in files: if f[-3:] in '.py': add.add(root) break for i in add: sys.path.append(i) >>> import using, sys, pprint &...
https://stackoverflow.com/ques... 

Why no love for SQL? [closed]

...ave added their own (nonstandard) extras there. That is, SQL written for a MySQL DB might not work quite similarly with, say, an Oracle DB — even if it "should". I agree, though, that SQL is way better than most of the abstraction layers out there. It's not SQL's fault that it's being used for th...
https://stackoverflow.com/ques... 

Python - Create a list with initial capacity

... 0.0098 Conclusion. It barely matters. Premature optimization is the root of all evil. share | improve this answer | follow | ...
https://stackoverflow.com/ques... 

Running PostgreSQL in memory only

... Postgres. It does not offer an in-process/in-memory engine like HSQLDB or MySQL. If you want to create a self-contained environment you can put the Postgres binaries into SVN (but it's more than just a single executable). You will need to run initdb to setup your test database before you can do ...
https://stackoverflow.com/ques... 

Detect encoding and make everything UTF-8

... @Christian: Indeed, that's what the authors of High Performance MySQL recommend too. – Alix Axel Dec 19 '11 at 7:39 1 ...
https://stackoverflow.com/ques... 

Difference between a theta join, equijoin and natural join

...ystems created by various vendors such as Microsoft's SQL Server, Oracle's MySQL etc. ) don't even bother supporting this, it is just bad practice (or purposely chose not to implement it). Imagine that a developer comes and changes the name of the second column in Product from Price to Cost. Then al...
https://stackoverflow.com/ques... 

How can I get the current date and time in UTC or GMT in Java?

... Behrang, according to stackoverflow.com/questions/4123534/…, the MySQL JDBC driver converts a given java.util.Timestamp (or java.util.Date) to the server time zone. – Derek Mahar Dec 7 '10 at 21:02 ...
https://stackoverflow.com/ques... 

How exactly does a generator comprehension work?

...iterables, something like a cursor which moves on a resource. If you know mysql cursor or mongodb cursor, you may be aware of that the whole actual data never gets loaded into the memory at once, but one at a time. Your cursor moves back and forth, but there is always a one row/list element in memo...