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Keep ignored files out of git status
I would like to stop Git from showing ignored files in git status , because having tons of documentation and config files in the list of Changed but not updated files, renders the list half-useless.
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Purpose of Unions in C and C++
I have used unions earlier comfortably; today I was alarmed when I read this post and came to know that this code
15 Ans...
Why is C so fast, and why aren't other languages as fast or faster? [closed]
In listening to the StackOverflow podcast, the jab keeps coming up that "real programmers" write in C, and that C is so much faster because it's "close to the machine." Leaving the former assertion for another post, what is special about C that allows it to be faster than other languages? Or put ano...
How to repeat a string a variable number of times in C++?
I want to insert 'n' spaces (or any string) at the beginning of a string in C++. Is there any direct way to do this using either std::strings or char* strings?
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SQL Server loop - how do I loop through a set of records
how do I loop through a set of records from a select?
8 Answers
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When to use EntityManager.find() vs EntityManager.getReference() with JPA
I have come across a situation (which I think is weird but is possibly quite normal) where I use the EntityManager.getReference(LObj.getClass(), LObj.getId()) to get a database entity and then pass the returned object to be persisted in another table.
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Group a list of objects by an attribute : Java
I need to group a list of objects(Student) using an attribute(Location) of the particular object, the code is like below,
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Asynchronous Requests with Python requests
I tried the sample provided within the documentation of the requests library for python.
12 Answers
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MongoDB与内存 - 大数据 & AI - 清泛网 - 专注IT技能提升
MongoDB与内存MongoDB-And-MemoryMongoDB 内存但凡初次接触MongoDB的人，无不惊讶于它对内存的贪得无厌，至于个中缘由，我先讲讲Linux是如何管理内存的，再说说MongoDB是如何使用内存的...但凡初次接触MongoDB的人，无不惊讶于它对内存的...
MongoDB与内存 - 大数据 & AI - 清泛网 - 专注IT技能提升
MongoDB与内存MongoDB-And-MemoryMongoDB 内存但凡初次接触MongoDB的人，无不惊讶于它对内存的贪得无厌，至于个中缘由，我先讲讲Linux是如何管理内存的，再说说MongoDB是如何使用内存的...但凡初次接触MongoDB的人，无不惊讶于它对内存的...