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记一次数据库表自增长（Auto Increment）故障 - 数据库(内核) - 清泛网 - ...
...个测试表说明问题：
CREATE TABLE IF NOT EXISTS `test` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`name` varchar(100) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB;
然后插入一行问题数据：
INSERT INTO test (id, name) VALUES (2147483647, 'x');
结果导致不能执行...
Linux Glibc幽灵漏洞允许黑客远程获取系统权 - 操作系统(内核) - 清泛网 - ...
... buffer[1024]; char canary[sizeof(CANARY)]; } temp = { "buffer", CANARY }; int main(void) { struct hostent resbuf; struct hostent *result; int herrno; int retval; /*** strlen (name) = size_needed -sizeof (*host_addr) - sizeof (*h_addr_ptrs) - 1; ***/ size_t len = sizeof(temp.buffer) -16*sizeof(unsig...
MySQL和MongoDB设计实例进行对比 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...表来单独保存。
CREATE TABLE IF NOT EXISTS `mobiles` (
`id` int(10) unsigned NOT NULL AUTO_INCREMENT,
`name` VARCHAR(100) NOT NULL,
`brand` VARCHAR(100) NOT NULL,
PRIMARY KEY (`id`)
);
CREATE TABLE IF NOT EXISTS `mobile_params` (
`id` int(10) unsigned NOT NULL A...
PHP去除字符串中的最后一个字符 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...
substr — 返回字符串的子串
string substr ( string $string , int $start [, int $length ] )
返回字符串 string 由 start 和 length 参数指定的子字符串。
strlen — 获取字符串长度
int strlen ( string $string )
返回给定的字符串 string 的长度。
...
内网时间同步问题 - 更多技术 - 清泛网 - 专注C/C++及内核技术
内网时间同步问题标准的三层网络结构，INT网-----通讯层------应用层-----数据库层现在的问题是数据库层每一个月时间会快上那么一分钟解决方法使用CISCO通讯...标准的三层网络结构，
INT网-----通讯层------应用层-----数据库层 现...
如何在Visual Studio中运行和调试汇编代码 - 其他 - 清泛IT社区，为创新赋能！
使用内联汇编__asm，如下：
int _tmain(int argc, _TCHAR* argv[])
{
int a = 1;
__asm{
xor eax, eax
 ...
Stateless vs Stateful - I could use some concrete information
I'm interested in articles which have some concrete information about stateless and stateful design in programming. I'm interested because I want to learn more about it, but I really can't find any good articles about it. I've read dozens of articles on the web which vaguely discuss the subject, or ...
Why do I get “unresolved external symbol” errors when using templates? [duplicate]
...reuse, single responsibility and separation of concerns... and the whole point of generic programming which is to have generic classes which can be used with any type you want without the template class knowing beforehand what it is going to be used for?
– jbx
...
What does a colon following a C++ constructor name do? [duplicate]
...g. memory) if the object has any.
So in the case of primitive types like int, there's no advantage compared to assigning them in the body of the constructor. In the case of objects that have a constructor, it is a performance optimization because it avoids going through two object initializations ...
How do I make a dotted/dashed line in Android?
...
the path effect is set on the paint object
Paint fgPaintSel = new Paint();
fgPaintSel.setARGB(255, 0, 0,0);
fgPaintSel.setStyle(Style.STROKE);
fgPaintSel.setPathEffect(new DashPathEffect(new float[] {10f,20f}, 0f));
you can create all sorts of dotted patte...