大约有 10,000 项符合查询结果(耗时:0.0208秒) [XML]
Difference between 3NF and BCNF in simple terms (must be able to explain to an 8-year old)
...herefore more strict.
The difference is so subtle that what many people informally describe as 3NF is actually BCNF. For example, you stated here that 3NF means "data depends on the key[s]... and nothing but the key[s]", but that is really an informal description of BCNF and not 3NF. 3NF could more...
REST, HTTP DELETE and parameters
...uations where there is a conflict which prevents the RESTful service to perform the operation, but there is still a chance that the user might be able to resolve the conflict himself. A pre-deletion confirmation (where there are no real conflicts which would prevent deletion) is not a conflict per s...
What is the formal difference in Scala between braces and parentheses, and when should they be used?
What is the formal difference between passing arguments to functions in parentheses () and in braces {} ?
9 Answers
...
What is the behavior difference between return-path, reply-to and from?
... In other words, the Return-Path header is as trustworthy as the checks performed by the receiving SMTP server, where the others can be easily spoofed.
– cdhowie
Jun 15 '15 at 20:32
...
Accessing inactive union member and undefined behavior?
... is an incomplete type, a program that necessitates this conversion is ill-formed. If the object to which the glvalue refers is not an object of type T and is not an object of a type derived from T, or if the object is uninitialized, a program that necessitates this conversion has undefined behavio...
What should every developer know about databases? [closed]
...l design.
The next thing developers need to learn is that while speed (performance) is important, other measures of design goodness are even more important, such as the ability to revise and extend the scope of the database down the road, or simplicity of programming.
Finally, anybody who mess...
Convert JavaScript string in dot notation into an object reference
...a sign that there is something very wrong going on (unless maybe you're performing some strange deserialization).
That is to say, novices who find their way to this answer must ask themselves the question "why am I doing this?"
It is of course generally fine to do this if your use case is ...
What is the difference between canonical name, simple name and class name in Java Class?
...operations but is not guaranteed to be unique.
the type name returns "an informative string for the name of this type", "It's like toString(): it's purely informative and has no contract value" (as written by sir4ur0n)
shar...
How do search engines deal with AngularJS applications?
...t;meta name="fragment" content="!">
Google will not index them in this form, but will instead pull a static version of the site from the _escaped_fragments_ URL and index that.
Pushstate URLs look like any ordinary URL:
domain.com/path/to/resource
The difference is that Angular handles them ...
How to read the output from git diff?
... --git a/builtin-http-fetch.c b/http-fetch.c is a "git diff" header in the form diff --git a/file1 b/file2. The a/ and b/ filenames are the same unless rename/copy is involved (like in our case). The --git is to mean that diff is in the "git" diff format.
Next are one or more extended header lines...
