大约有 40,000 项符合查询结果（耗时：0.0780秒） [XML]
Mongoose (mongodb) batch insert?
...nsert it took just a few seconds.
Model.collection.insert(docs, options, callback)
docs is the array of documents to be inserted;
options is an optional configuration object - see the docs
callback(err, docs) will be called after all documents get saved or an error occurs. On success, docs is th...
How do I connect to a MySQL Database in Python?
...onnecting to MYSQL with Python 2 in three steps
1 - Setting
You must install a MySQL driver before doing anything. Unlike PHP, Only the SQLite driver is installed by default with Python. The most used package to do so is MySQLdb but it's hard to install it using easy_install. Please note MySQLdb o...
How to retrieve the current value of an oracle sequence without increment it?
...
SELECT last_number
FROM all_sequences
WHERE sequence_owner = '<sequence owner>'
AND sequence_name = '<sequence_name>';
You can get a variety of sequence metadata from user_sequences, all_sequences and dba_sequences.
These views wo...
Should I avoid the use of set(Preferred|Maximum|Minimum)Size methods in Java Swing?
...uld I use them? In which context? For what purposes?
I don't know, personally I think of it as an API design accident. Slightly forced by compound components having special ideas about child sizes. "Slightly", because they should have implemented their needs with a custom LayoutManager.
What ex...
How to get terminal's Character Encoding
... is not good. a more complete solution would be something like: echo ${LC_ALL:-${LC_CTYPE:-${LANG}}}. then again, the variable being set isn't a guarantee that they're valid, so you should stick to the locale program (as seen in other answers here).
– Mike Frysinger
...
How can I use grep to find a word inside a folder?
..., a directory is a kind of file (there is a term "regular file" to specifically refer to entities that are called just "files" in Windows).
grep -nr string reads the content to search from the standard input, that is why it just waits there for input from you, and stops doing so when you press ^C (...
Open firewall port on CentOS 7
...
Use this command to find your active zone(s):
firewall-cmd --get-active-zones
It will say either public, dmz, or something else. You should only apply to the zones required.
In the case of public try:
firewall-cmd --zone=public --add-port=2888/tcp --permanent
Then reme...
Better way of incrementing build number?
... template of Xcode?
The reason I ask this is that Project-Info.plist normally is under version control, and modifying it means that it will be marked as, well, modified.
If that is fine with you, then the following snippet will update the build number and mark the file as modified in the process...
Strengths of Shell Scripting compared to Python [closed]
...programs in shell.
Shell scripting reuses entire programs.
Shell is universally available (on anything like Unix) - Python is not necessarily installed.
'Tis true that you can do everything in Python that you can do in shell; 'tis also true that there are things that are easy in Python that are ha...
What are the main purposes of using std::forward and which problems it solves?
... references. What is the purpose of doing that? How would that affect the called function inner if we leave t1 & t2 as lvalues?
...