大约有 43,000 项符合查询结果（耗时：0.0640秒） [XML]
MySQL order by before group by
...t the max(post_date) by author is to use a subquery to return the max date and then join that to your table on both the post_author and the max date.
The solution should be:
SELECT p1.*
FROM wp_posts p1
INNER JOIN
(
SELECT max(post_date) MaxPostDate, post_author
FROM wp_posts
WHERE po...
Bootstrap 3 and 4 .container-fluid with grid adding unwanted padding
...ntroduction section states that "Content should be placed within columns, and only columns may be immediate children of rows." Lucas Nelson's answer provides a fair approach to achieve the desired effect without breaking the syntax rule.
– Siavas
Jan 5 '17 at ...
What exactly is metaprogramming?
... eval("x" + i). DoSomething() would affect an object called x1 when i is 1 and x2 when i is 2.
Finally, another common form of metaprogramming is when the program can change itself in non-trivial fashions. LISP is well known for this and is something Paul Graham championed about a decade ago. I'll ...
“CASE” statement within “WHERE” clause in SQL Server 2008
...tatements like this:
WHERE (
(LEN('TestPerson') = 0
AND co.personentered = co.personentered
)
OR
(LEN('TestPerson') <> 0
AND co.personentered LIKE '%TestPerson')
)
Although, either way I'm not sure how great of a query plan...
How to use a class from one C# project with another C# project
In the same solution, I have two projects: P1 and P2. How can I make use of a class of P1 in P2?
9 Answers
...
What is the common header format of Python files?
...tring. Otherwise, the docstring will not be recognized by the interpreter, and you will not have access to it in interactive sessions (i.e. through obj.__doc__) or when generating documentation with automated tools.
Import built-in modules first, followed by third-party modules, followed by any chan...
New to unit testing, how to write great tests? [closed]
I'm fairly new to the unit testing world, and I just decided to add test coverage for my existing app this week.
7 Answers
...
*.h or *.hpp for your class definitions
...atic code formatting, you might have different guidelines for formatting C and C++ code. If the headers are separated by extension you can set your editor to apply the appropriate formatting automatically
Naming, I've been on projects where there were libraries written in C and then wrappers had bee...
Best Practice to Organize Javascript Library & CSS Folder Structure [closed]
...ur HTML5 application. This is not an attempt to create any kind of standard. Instead, I will make suggestions on how to group and name files in a logical convenient way. Your Project Let’s assume you are building an HTML5 application. In some cases you may use the root of your server as the ...
Android : difference between invisible and gone?
What is the difference between invisible and gone for the View visibility status?
8 Answers
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