大约有 48,000 项符合查询结果(耗时:0.0814秒) [XML]
How to alias a table in Laravel Eloquent queries (or using Query Builder)?
...Let's see it in action with an awesome tinker tool
$ php artisan tinker
[1] > Schema::create('really_long_table_name', function($table) {$table->increments('id');});
// NULL
[2] > DB::table('really_long_table_name')->insert(['id' => null]);
// true
[3] > DB::table('really_long_ta...
How does “make” app know default target to build if no target is specified?
...
|
edited Aug 29 '19 at 1:39
Marcel Gosselin
4,26822 gold badges2424 silver badges4949 bronze badges
...
What is the difference between `git fetch origin` and `git remote update origin`?
...
1 Answer
1
Active
...
MySQL - length() vs char_length()
...r example:
select length(_utf8 '€'), char_length(_utf8 '€')
--> 3, 1
As you can see the Euro sign occupies 3 bytes (it's encoded as 0xE282AC in UTF-8) even though it's only one character.
share
|
...
@RunWith(MockitoJUnitRunner.class) vs MockitoAnnotations.initMocks(this)
...
151
MockitoJUnitRunner gives you automatic validation of framework usage, as well as an automatic ...
find without recursion
...
I think you'll get what you want with the -maxdepth 1 option, based on your current command structure. If not, you can try looking at the man page for find.
Relevant entry (for convenience's sake):
-maxdepth levels
Descend at most levels (a non-negative integer) leve...
How to hide command output in Bash
...dy listening?" >&-
Usually, output goes either to file descriptor 1 (stdout) or 2 (stderr). If you close a file descriptor, you'll have to do so for every numbered descriptor, as &> (below) is a special BASH syntax incompatible with >&-:
/your/first/command >&- 2>&a...
How to cherry pick from 1 branch to another
...
1 Answer
1
Active
...
Loop through Map in Groovy?
...
|
edited Sep 19 '17 at 13:07
answered Apr 5 '12 at 23:23
...
How do I find out if first character of a string is a number?
... && c <= '9');
Or the slower regex solutions:
s.substring(0, 1).matches("\\d")
// or the equivalent
s.substring(0, 1).matches("[0-9]")
However, with any of these methods, you must first be sure that the string isn't empty. If it is, charAt(0) and substring(0, 1) will throw a StringIn...
