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How to call an external command?
...use shlex.split for an easy way to do this docs.python.org/2/library/shlex.html#shlex.split
– Daniel F
Sep 20 '18 at 18:05
1
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Should I always use a parallel stream when possible?
... This post gives further details about the NQ model: gee.cs.oswego.edu/dl/html/StreamParallelGuidance.html
– Pino
Apr 1 '15 at 8:25
4
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What is the difference between Unidirectional and Bidirectional JPA and Hibernate associations?
...the Hibernate docs:
http://docs.jboss.org/hibernate/core/3.3/reference/en/html/best-practices.html
Specifically:
Prefer bidirectional associations:
Unidirectional associations are more difficult to query. In a large
application, almost all associations
must be navigable in both dire...
Foreign keys in mongo?
... Mongoid or MongoMapper.
http://mongoid.org/docs/relations/referenced/1-n.html
In a NoSQL database like MongoDB there are not 'tables' but collections. Documents are grouped inside Collections. You can have any kind of document – with any kind of data – in a single collection. Basically, in a ...
How can I use a Python script in the command line without cd-ing to its directory? Is it the PYTHONP
...ogram as the variable
sys.path.
http://docs.python.org/2/using/cmdline.html#envvar-PYTHONPATH
What you're looking for is PATH.
export PATH=$PATH:/home/randy/lib/python
However, to run your python script as a program, you also need to set a shebang for Python in the first line. Something li...
Sending POST data in Android
...ces:
https://developer.android.com/reference/java/net/HttpURLConnection.html
How to add parameters to HttpURLConnection using POST using NameValuePair
Older Answer
Note: This solution is outdated. It only works on Android devices up to 5.1. Android 6.0 and above do not include the Apache http ...
Who architected / designed C++'s IOStreams, and would it still be considered well-designed by today'
... bits and pieces of IOStreams history: www2.research.att.com/~bs/01chinese.html (this link seems to be temporarily broken right now, but you can try Google's page cache)
– stakx - no longer contributing
May 2 '10 at 11:48
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Logger slf4j advantages of formatting with {} instead of string concatenation
...pass an array instead. See e.g. http://slf4j.org/apidocs/org/slf4j/Logger.html#debug(java.lang.String, java.lang.Object[]).
Regarding the speed: Ceki posted a benchmark a while back on one of the lists.
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MQTT报文多个数据的提取 - App Inventor 2 拓展 - 清泛IT社区，为创新赋能！
...。
其他类似的帖子：https://bbs.tsingfun.com/thread-2631-1-1.html
App Inventor 2 发表于 2026-03-02 21:17
见上面代码块，解析json，拿出数据项，是一个列表，拿出第一项目中的value，结果是：75.45
要取其他项的 ...
上面关于MQTT...
How to UPSERT (MERGE, INSERT … ON DUPLICATE UPDATE) in PostgreSQL?
...te in PostgreSQL?
http://petereisentraut.blogspot.com/2010/05/merge-syntax.html
Upsert with a transaction
Is SELECT or INSERT in a function prone to race conditions?
SQL MERGE on the PostgreSQL wiki
Most idiomatic way to implement UPSERT in Postgresql nowadays
What about MERGE?
SQL-standard MERGE a...