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Python - Create a list with initial capacity
... 0.0098
Conclusion. It barely matters.
Premature optimization is the root of all evil.
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PHP: How to generate a random, unique, alphanumeric string for use in a secret link?
...his 5-day long automated test and stored the generated unique strings in a MySQL database.
During this test period, I used 5 different lengths (5, 10, 15, 20, 50) and +/-0.5 million records were inserted for each length. During my test, only the length 5 generated +/-3K duplicates out of 0.5 million...
Is there any NoSQL data store that is ACID compliant?
... Good answer. You can have both NoSQL+ACID and non-ACID-RDBMS (think MySQL + MyISAM). I'd usually consider NoSQL as "eventually consistent". I'll throw in the CAP theorem too... :-)
– gbn
Feb 27 '12 at 9:48
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数据存储组件 · App Inventor 2 中文网
...Google Sheets API，最后创建一个Sheets API 的服务帐户。
有关如何创建服务帐户以及在何处查找的说明使用 Google 表格组件的其他相关信息，可以在此处找到。
行号和列号是从 1 开始索引的。
属性
ApplicationName
...
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...
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
&...
SQL Server CTE and recursion example
...>
-- In a rCTE, this block is called an [Anchor]
-- The query finds all root nodes as described by WHERE ManagerID IS NULL
SELECT EmployeeID, FirstName, LastName, ManagerID, 1
FROM Employees
WHERE ManagerID IS NULL
-->>>>>>>>>>Block 1>>>>>&...
XmlSerializer: remove unnecessary xsi and xsd namespaces
...igure the XmlSerializer so that it doesn't write default namespaces in the root element?
4 Answers
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What does Docker add to lxc-tools (the userspace LXC tools)?
... from any tarball with "docker import". For example: "debootstrap raring ./rootfs; tar -C ./rootfs -c . | docker import flimm/mybase".
– Solomon Hykes
Aug 20 '13 at 15:47
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Why do people say that Ruby is slow? [closed]
...ctually done by software developed in C. e.g. Apache, Thin, Nginx, SQLite, MySQL, PostgreSQL, many parsing libraries, RMagick, TCP/IP, etc are C programs used by Ruby. Ruby provides the glue and the business logic.
What are your options as a Ruby
programmer if you want to deal with
this "sl...