大约有 3,000 项符合查询结果（耗时：0.0191秒） [XML]
How to use Active Support core extensions
...ps://bundler.io/blog/2019/01/04/an-update-on-the-bundler-2-release.html
$ cat Gemfile.lock | grep -A 1 "BUNDLED WITH"
BUNDLED WITH
1.17.3
$ gem install bundler -v '1.17.3'
share
|
improve this...
How do I make a redirect in PHP?
...t (so before the <!DOCTYPE ...> declaration, for example).
header('Location: '.$newURL);
2. Important details
die() or exit()
header("Location: http://example.com/myOtherPage.php");
die();
Why you should use die() or exit(): The Daily WTF
Absolute or relative URL
Since June 2014 both absolut...
How to find current transaction level?
... SET
ansi_padding SET
ansi_nulls SET
concat_null_yields_null SET
isolation level read committed
share
|
improve this answer
|
...
What is the best way to concatenate two vectors?
...
AB.reserve( A.size() + B.size() ); // preallocate memory
AB.insert( AB.end(), A.begin(), A.end() );
AB.insert( AB.end(), B.begin(), B.end() );
share
|
improve this ans...
PostgreSQL disable more output
...antage that you don't have to remember psql option names, etc.
psql ... | cat
share
|
improve this answer
|
follow
|
...
Which are more performant, CTE or temporary tables?
....
Only 15 rows of the 1,000,000 randomly generated values match the predicate but the expensive table scan happens 16 times to locate these.
This would be a good candidate for materializing the intermediate result. The equivalent temp table rewrite took 25 seconds.
INSERT INTO #T
SELECT *,
...
Check if a table exists in Rails
... Jan 31 '12 at 14:48
alexey_the_catalexey_the_cat
1,5811616 silver badges2828 bronze badges
...
What's the fuss about Haskell? [closed]
...file1).pipe(fs.createWriteStream(file2)). Bash has something similar, too: cat $1 > $2
– Max Heiber
Nov 15 '17 at 1:54
...
How to parse XML in Bash?
....com/doc/2006-03-01/">
<Name>sth-items</Name>
<IsTruncated>false</IsTruncated>
<Contents>
<Key>item-apple-iso@2x.png</Key>
<LastModified>2011-07-25T22:23:04.000Z</LastModified>
<ETag>&quot;0032a28286680abee71aed5d05...
What is a mutex?
...o talk. If you don't hold the chicken you cannot speak. You can only indicate that you want the chicken and wait until you get it before you speak. Once you have finished speaking, you can hand the chicken back to the moderator who will hand it to the next person to speak. This ensures that peop...