大约有 42,000 项符合查询结果(耗时:0.0419秒) [XML]
Why can't a text column have a default value in MySQL?
If you try to create a TEXT column on a table, and give it a default value in MySQL, you get an error (on Windows at least). I cannot see any reason why a text column should not have a default value. No explanation is given by the MySQL documentation. It seems illogical to me (and somewhat frustrati...
How to merge two sorted arrays into a sorted array? [closed]
This was asked of me in an interview and this is the solution I provided:
31 Answers
3...
What is the difference between DAO and Repository patterns?
What is the difference between Data Access Objects (DAO) and Repository patterns? I am developing an application using Enterprise Java Beans (EJB3), Hibernate ORM as infrastructure, and Domain-Driven Design (DDD) and Test-Driven Development (TDD) as design techniques.
...
Why does the Scala compiler disallow overloaded methods with default arguments?
While there might be valid cases where such method overloadings could become ambiguous, why does the compiler disallow code which is neither ambiguous at compile time nor at run time?
...
Difference between HBase and Hadoop/HDFS
This is kind of naive question but I am new to NoSQL paradigm and don't know much about it. So if somebody can help me clearly understand difference between the HBase and Hadoop or if give some pointers which might help me understand the difference.
...
Differences between hard real-time, soft real-time, and firm real-time?
I have read the definitions for the different notions of real-time , and the examples provided for hard and soft real-time systems make sense to me. But, there is no real explanation or example of a firm real-time system. According to the link above:
...
What does “abstract over” mean?
Often in the Scala literature, I encounter the phrase "abstract over", but I don't understand the intent. For example , Martin Odersky writes
...
String concatenation: concat() vs “+” operator
Assuming String a and b:
11 Answers
11
...
No newline at end of file
When doing a git diff it says "No newline at end of file" .
12 Answers
12
...
How do I link to part of a page? (hash?)
How do you link (with <a> ) so that the browser goes to certain subheading on the target page as opposed to the top?
...
