大约有 10,400 项符合查询结果(耗时:0.0421秒) [XML]

https://stackoverflow.com/ques... 

What should every developer know about databases? [closed]

...y need to have a clue about indexes, by which I mean they should have some idea what indexes they need and how they're likely to affect performance. This means not having useless indices, but not being afraid to add them to assist queries. Anything further (like the balance) should be left for the...
https://stackoverflow.com/ques... 

Java 8: performance of Streams vs Collections

... I'm aware of the boxing. This is just an informal benchmark. The idea is to have the same ammount of boxing/unboxing in both the collections and the streams tests. – Mister Smith Mar 26 '14 at 10:59 ...
https://stackoverflow.com/ques... 

Change navbar color in Twitter Bootstrap

... I have no idea why this fixes the problem but thank you. – Simon Morgan Apr 10 '15 at 18:58 6 ...
https://stackoverflow.com/ques... 

Convert JavaScript string in dot notation into an object reference

...ike not losing track of the references themselves in the first place (most ideal if it's only client-side or only server-side), etc. (A pre-existing unique id would be inelegant to add, but could be used if the spec otherwise requires its existence regardless.) case 2: Working with serialize...
https://stackoverflow.com/ques... 

Reverse a string in Python

...unity thinks using such cryptic methods for something so basic is a good idea. Why isn't it just s.reverse()? Problem Context Python 2.x Python 3.x Scenario: Developer wants to transform a string Transformation is to reverse order of all the characters Solution example01 produces the...
https://stackoverflow.com/ques... 

How do arrays in C# partially implement IList?

... What about the C++CLI compiler? That one obviously says "I have no idea how to do that!" and issues an error. It needs an explicit cast to IList<T> in order to work. – Tobias Knauss May 12 '17 at 10:35 ...
https://stackoverflow.com/ques... 

How do you track record relations in NoSQL?

...onal terms. The approach used will differ between platforms, but the basic idea that you have to manage indexes is fairly universal. The relationship examples you have given are modeled in two different ways in NoSQL: 1) Storage - unlike SQL, columns can have multiple/complex values, so the child ob...
https://stackoverflow.com/ques... 

PHP Function Comments

... It's the same idea, just for PHP instead of Java. – Josh Leitzel Aug 21 '09 at 4:41 1 ...
https://stackoverflow.com/ques... 

Using async/await for multiple tasks

... @SerjSagan my initial idea was just to verify that the workers are being started concurrently in each case, but I've added time stamps to improve the clarity of the test. Thanks for the suggestion. – RiaanDP ...
https://stackoverflow.com/ques... 

Difference between DateTime and Time in Ruby

... @PhươngNguyễn Hi, any ideas how/why this difference in time zones? where is it taking the offset from ? – Joel_Blum Jul 24 '19 at 15:11 ...