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How do I specify unique constraint for multiple columns in MySQL?
...T NULL,
`id_router` int(11) DEFAULT NULL,
`content` mediumtext COLLATE utf8_czech_ci NOT NULL,
PRIMARY KEY (`id`),
UNIQUE KEY `id_box_elements` (`id_box_elements`,`id_router`)
);
and the UNIQUE KEY works just as expected, it allows multiple NULL rows of id_box_elements and id_router.
I a...
iOS开发调试技巧总结 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...defineNSLog(format,...)do{\
fprintf(stderr,"%s\n",\
[[[NSStringstringWithUTF8String:__FILE__]lastPathComponent]UTF8String],\
__LINE__,__func__);\
(NSLog)((format),##__VA_ARGS__);\
fprintf(stderr,"-------\n");\
}while(0)
@interfaceViewController
@end
@implementationViewController
-(...
Boost.Asio的简单使用(Timer,Thread,Io_service类) - C/C++ - 清泛网 - 专注C/C++及内核技术
...时器上进行阻塞等待(blocking wait).实现,我们包含必要的头文件.所有的asio类可以简单的通过include "...目录：
1. 同步Timer
2. 异步Timer
3. 回调函数的参数
4. 成员函数作为回调函数
5. 多线程回调同步
6. TCP客户端:对准时间
7. TCP同...
How to use http.client in Node.js if there is basic authorization
...ify(response.headers));
response.setEncoding('utf8');
response.on('data', function (chunk) {
console.log('BODY: ' + chunk);
});
});
request.end();
...
UnicodeDecodeError: 'ascii' codec can't decode byte 0xe2 in position 13: ordinal not in range(128)
...
You can try this also:
import sys
reload(sys)
sys.setdefaultencoding('utf8')
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How to use HttpWebRequest (.NET) asynchronously?
...tring url) {
var bytes = await GetBytesAsync(url);
return Encoding.UTF8.GetString(bytes, 0, bytes.Length);
}
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How to import a single table in to mysql database using command line
...ent = @@character_set_client /; 24 /!40101 SET character_set_client = utf8 */; 25 CREATE TABLE account_product_prices (`
– Michael De Silva
Apr 9 '15 at 11:13
...
Let JSON object accept bytes or let urlopen output strings
... import urlopen
response = urlopen("site.com/api/foo/bar").read().decode('utf8')
obj = json.loads(response)
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MDI CDockablePane使用总结 - C/C++ - 清泛网 - 专注C/C++及内核技术
...心得以九个例子进行总结如下：1. CFrameWndEx 在框架类的头文件中定义一个CDo...最近做项目使用到了MFC的CDockablePane进行布局，下面将应用心得以九个例子进行总结如下：
1. CFrameWndEx 在框架类的头文件中定义一个CDockablePane的数组
...
Convert integer to hexadecimal and back again
... You might be able to stuff that into one unicode character, but when it's UTF8 encoded, unless it's between 0 and 127 it's going to take up more characters than the hex equivalent. HEX is not a terrible solution for this problem, but a base64 of the four bytes in the int would be even shorter (and ...