大约有 40,000 项符合查询结果(耗时:0.0386秒) [XML]
Solving a “communications link failure” with JDBC and MySQL [duplicate]
...revents any external access by default. These steps are always required in order to access MySQL from any remote machine.
– Luis Crespo
May 7 '18 at 14:26
add a comment
...
What's the syntax for mod in java
... the modulo, limiting the value to the -b -> +b range and then add b in order to ensure that the value is positive, letting the next modulo limit it to the 0 -> b range.
Note: If b is negative, the result will also be negative
...
Which UUID version to use?
...
Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity.
...
Mapping two integers to one, in a unique and deterministic way
... +1 That's what I think too (although I did the calculation saying the order of A and B don't matter)
– lc.
May 28 '09 at 7:50
4
...
Include an SVG (hosted on GitHub) in MarkDown
...ill work.
I copied the SVG image from the question to a repo on github in order to create the examples below
Linking to files using relative paths (Works, but obviously only on github.com / github.io)
Code

<img src="./controllers_brief.svg">
Result
S...
HTML 5: Is it , , or ?
...
Start tags consist of the following
parts, in exactly the following order:
A "<" character.
The element’s tag name.
Optionally, one or more attributes, each of which must be
preceded by one or more space
characters.
Optionally, one or more space characters.
Optionally...
What are the options for storing hierarchical data in a relational database? [closed]
...ere follows an example - taxonomic tree of birds so the hierarchy is Class/Order/Family/Genus/Species - species is the lowest level, 1 row = 1 taxon (which corresponds to species in the case of the leaf nodes):
CREATE TABLE `taxons` (
`TaxonId` smallint(6) NOT NULL default '0',
`ClassId` smallin...
String.Join method that ignores empty strings?
...S tempT
WHERE RPT_SearchTerm IS NOT NULL
ORDER BY RPT_Sort
FOR XML PATH(N''), TYPE
).value('.', 'nvarchar(MAX)')
,1
,3
,N''
)
,N''
) AS RPT_SearchTerms
...
Encoding an image file with base64
...
(Incidentally, answer order cannot be relied on here, so it is worth avoiding comments like "the first answer". The one that appears first may change over time.:-))
– halfer
Apr 26 '19 at 21:27
...
Anonymous recursive PHP functions
...
In order for it to work, you need to pass $factorial as a reference
$factorial = function( $n ) use ( &$factorial ) {
if( $n == 1 ) return 1;
return $factorial( $n - 1 ) * $n;
};
print $factorial( 5 );
...
