大约有 33,000 项符合查询结果（耗时：0.0477秒） [XML]
Remove duplicate rows in MySQL
...
The aforementioned bug @DarkMantis referred to and it's solution.
– Jordan Arseno
Jan 23 '13 at 20:47
...
Checking if a list is empty with LINQ
...
Or use one line and do return (source==null) ? true : !source.Any(); (If your not throwing an exception)
– Gage
Aug 26 '10 at 15:23
...
SQL - find records from one table which don't exist in another
...two tables:
This is the shortest statement, and may be quickest if your phone book is very short:
SELECT *
FROM Call
WHERE phone_number NOT IN (SELECT phone_number FROM Phone_book)
alternatively (thanks to Alterlife)
SELECT *
FROM Call
WHERE NOT EXISTS
(SELECT *
FROM Phone_book
...
How can one close HTML tags in Vim quickly?
...
I installed xmledit plugin with git clone https://github.com/sukima/xmledit.git ~/.vim/bundle/xmledit. But it only works when editing .xml files. When the file ext is .html or .htm, it doesn't works.
– Chad
Nov 27 '14 at 5:5...
What is a smart pointer and when should I use one?
What is a smart pointer and when should I use one?
14 Answers
14
...
How does one make a Zip bomb?
...
Citing from the Wikipedia page:
One example of a Zip bomb is the file
45.1.zip which was 45.1 kilobytes of compressed data, containing nine
layers of nested zip files in sets of
10, each bottom layer archive
containing a 1.30 gigabyte file for a
t...
Why is there no logical xor in JavaScript?
...nd of a ^= true to toggle booleans and it fails on some machines such as phones.
– Masadow
Jun 5 '15 at 15:14
...
Get a list of all git commits, including the 'lost' ones
...nce between a commit deliberately orphaned by commit --amend or rebase and one accidentally orphaned by working with a detached HEAD, say.
– Cascabel
Jan 24 '11 at 21:22
3
...
do..end vs curly braces for blocks in Ruby
...an do..end, so keep that in mind when deciding what you want to use.
P.S: One more example to keep in mind while you develop your preferences.
The following code:
task :rake => pre_rake_task do
something
end
really means:
task(:rake => pre_rake_task){ something }
And this code:
task...
How to get the size of a JavaScript object?
...
Anyone who landed here looking for the smallest type for the purposes of false/true, it seems to be undefined/null.
– zupa
Jan 24 '13 at 16:32
...