大约有 2,000 项符合查询结果（耗时：0.0282秒） [XML]
Is it possible to roll back CREATE TABLE and ALTER TABLE statements in major SQL databases?
... releases.
MySQL has supported Atomic DDL since 8.0 (which was released in 2018).
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Simple basic explanation of a Distributed Hash Table (DHT)
...if anyone wants more reading material - courses.engr.illinois.edu/ece428/sp2018/lectures.html
– Siddhartha
Apr 12 '18 at 6:42
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Validate that a string is a positive integer
...ion I wrote a large test suite against after all the existing answers (2/1/2018) failed on some form of input.
function isPositiveInteger(v) {
var i;
return v && (i = parseInt(v)) && i > 0 && (i === v || ''+i === v);
}
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PHP memory profiling
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Xdebug reimplemented memory tracing in 2.6 (2018-01-29) which can be used in Qcachegrind or similar tool. Just make sure to select the memory option :)
From the docs:
Since Xdebug 2.6, the profiler also collects information about how much memory is being used, and...
Will HTML5 allow web apps to make peer-to-peer HTTP connections?
...upgrade trends, WebRTC should be available on around 75% of iOS devices by 2018, and 100% by 2020.
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Using tags in the with other HTML
...rome stopped supporting it in version 36 (2014) and Firefox in version 62 (2018). In both cases, the feature had to be explicitly enabled by the user in the browsers' settings. No other major browser ever supported it.
sha...
What are the differences between django-tastypie and djangorestframework? [closed]
... Based on Github history and issues that have been resolved in 2018, it would seem that TastyPie is indeed still maintained.
– Sushil
Jun 15 '18 at 11:35
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Can a Windows batch file determine its own file name?
...abel.
Volume Serial Number is CE18-5BD0
Directory of C:\bin
. . .
05/02/2018 11:22 PM 208 FileName.bat
Here is the final code
@echo off
Set z=%%
set b=%~0
echo.
echo %z%0.......%0
echo %z%~0......%~0
echo %z%n0......%n0
echo %z%x0......%x0
echo %z%~n0.....%~n0
echo %z%dp0........
How to test that no exception is thrown?
...n.
This function is available
since JUnit 5.2.0 (29 April 2018).
● assertThrows()
Asserts that execution of the supplied executable
throws an exception of the expectedType
and returns the exception.
Example
package test.mycompany.myapp.mymodule;
import...
Detecting that the browser has no mouse and is touch-only
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As of 2018 there is a good and reliable way to detect if a browser has a mouse (or similar input device): CSS4 media interaction features which are now supported by almost any modern browser (except IE 11 and special mobile browser...