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How to use GROUP BY to concatenate strings in SQL Server?
...S (1,'B',8)
INSERT INTO #YourTable ([ID],[Name],[Value]) VALUES (2,'C',9)
SELECT
[ID],
STUFF((
SELECT ', ' + [Name] + ':' + CAST([Value] AS VARCHAR(MAX))
FROM #YourTable
WHERE (ID = Results.ID)
FOR XML PATH(''),TYPE).value('(./text())[1]','VARCHAR(MAX)')
,1,2,'') AS NameVa...
CString的截取字符串,截取ip:port - C/C++ - 清泛网 - 专注C/C++及内核技术
CString的截取字符串,截取ip:portCString截取ip:port,代码如下:CString strIpPort = "127.0.0.1:8888";CString strIp, strPort;int index = strIpPort.Find('...CString截取ip:port,代码如下:
CString strIpPort = "127.0.0.1:8888";
CString strIp, strPort;
int index = strIpPort.Fi...
如何诊断CDN故障 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...点?
幸运的是通过阿里测提供的服务,我们能拿到这个IP列表,当然这个IP列表不可能百分百完整,不过应该包含了大部分的节点,有兴趣的可以参考百度的JQuery CDN例子。
需要说明的是阿里测偏重于测试国内的网络环境,如果...
C#: how to get first char of a string?
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Select the oldest tab to see that it as Matthew
– johnc
Oct 7 '10 at 5:10
11
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What is IP address '::1'?
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::1 is the loopback address in IPv6. Think of it as the IPv6 version of 127.0.0.1.
See http://en.wikipedia.org/wiki/Localhost
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Socket 错误返回码详解 - C/C++ - 清泛网 - 专注C/C++及内核技术
...和recvfrom()
對於datagram socket,socket沒有呼叫bind()函式指定IP位址、port和協定等;對於stream socket,連接尚未建立
send()和sendto()
對於datagram socket,socket沒有呼叫bind()函式指定IP位址、port和協定等;對於stream socket,連接尚未建立
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How can I reliably determine the type of a variable that is declared using var at design time?
...o resolve the type. For instance:
var items = myList.OfType<Foo>().Select(foo => foo.Bar);
The return type is IEnumerable<Bar>, but resolving this required knowing:
myList is of type that implements IEnumerable.
There is an extension method OfType<T> that applies to IEnume...
How do I set up DNS for an apex domain (no www) pointing to a Heroku app?
... to point your apex domain you'd use an A record pointing to your server's IP. This solution doesn't scale and isn't viable for a cloud platform like Heroku, where multiple and frequently changing backends are responsible for responding to requests.
For subdomains (like www.example.com) you can use...
How to convert an entire MySQL database characterset and collation to UTF-8?
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You can create the sql to update all tables with:
SELECT CONCAT("ALTER TABLE ",TABLE_SCHEMA,".",TABLE_NAME," CHARACTER SET utf8 COLLATE utf8_general_ci; ",
"ALTER TABLE ",TABLE_SCHEMA,".",TABLE_NAME," CONVERT TO CHARACTER SET utf8 COLLATE utf8_general_ci; ")
AS a...
How to grant remote access to MySQL for a whole subnet?
I can easily grant access to one IP using this code:
7 Answers
7
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