大约有 42,000 项符合查询结果(耗时:0.0565秒) [XML]
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...
XmlSerializer: remove unnecessary xsi and xsd namespaces
...igure the XmlSerializer so that it doesn't write default namespaces in the root element?
4 Answers
...
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
&...
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...
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
|
...
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 ...
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
...
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...
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
...
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...