大约有 40,000 项符合查询结果（耗时：0.0563秒） [XML]
How do I write LINQ's .Skip(1000).Take(100) in pure SQL?
...
In SQL Server 2005 and above you can use ROW_NUMBER function. eg.
USE AdventureWorks;
GO
WITH OrderedOrders AS
(
SELECT SalesOrderID, OrderDate,
ROW_NUMBER() OVER (ORDER BY OrderDate) AS 'RowNumber'
FROM Sales.SalesOrderHeader
)
SELECT *
FROM OrderedOrd...
Windows下 C++网络延时检测 - C/C++ - 清泛网 - 专注C/C++及内核技术
...现的呢？直接上代码吧，亲测可用：
Ping.h
#ifndef CPING_H
#define CPING_H
#include <windows.h>
#include <conio.h>
#include <winnt.h>
#define PING_TIMES 2 //ping 4 次
typedef struct _IPINFO
{
unsigned char Ttl; // Time To Live
unsigned char Tos; // Type Of Se...
Why are dates calculated from January 1st, 1970?
...
Astronomers use their own epochal date: http://en.wikipedia.org/wiki/Epoch_(astronomy)
Why? A date has to be chosen to make the math work out. Any random date will work.
A date far in the past avoids negative numbers for the general case.
Some of the smarter packages use the proleptic Gregoria...
How do I speed up the gwt compiler?
...ur gwt.xml:
<define-property name="user.agent" values="ie6,gecko,gecko1_8"></define-property>
or in gwt 2.x syntax, and for one browser only:
<set-property name="user.agent" value="gecko1_8"/>
This, for example, will compile your application for IE and FF only. If you know yo...
How can I clone an SQL Server database on the same server in SQL Server 2008 Express?
...
Version 2012
Click download button and check ENU\x64\SQLManagementStudio_x64_ENU.exe
Version 2014
Click download button and check MgmtStudio 64BIT\SQLManagementStudio_x64_ENU.exe
Open Microsoft SQL Management Studio.
Backup original database to .BAK file (db -> Task -> Backup).
Create em...
How do I get the entity that represents the current user in Symfony2?
...*
* @var Security
*/
private $security;
public function __construct(Security $security)
{
$this->security = $security;
}
public function privatePage() : Response
{
$user = $this->security->getUser(); // null or UserInterface, if logged in
...
What are the nuances of scope prototypal / prototypical inheritance in AngularJS?
...parentProp> and scope: { localProp: '@theParentProp' }.
Isolate scope's __proto__ references Object.
Isolate scope's $parent references the parent scope, so although it is isolated and doesn't inherit prototypically from the parent scope, it is still a child scope.
For the picture below we have
...
LINQ - Full Outer Join
...roper Expression<Func<>>. I supposed I could replace them with _, __, ___ instead, but that doesn't seem any clearer until C# has a proper parameter wildcard to use instead.
– NetMage
Jul 7 '17 at 23:23
...
Can you nest html forms?
... form attribute can be the solution.
From http://www.w3schools.com/tags/att_input_form.asp:
The form attribute is new in HTML5.
Specifies which <form> element an <input> element belongs to. The value of this attribute must be the id attribute of a <form> element in the sam...
What are the Dangers of Method Swizzling in Objective-C?
...e:(NSRect)frame;
@end
@implementation NSView (MyViewAdditions)
- (void)my_setFrame:(NSRect)frame {
// do custom work
[self my_setFrame:frame];
}
+ (void)load {
[self swizzle:@selector(setFrame:) with:@selector(my_setFrame:)];
}
@end
This works just fine, but what would happen if my...