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MySQL主从服务器数据一致性的核对与修复 - 数据库(内核) - 清泛网 - 专注C/...
...:
MySQL主从服务器数据一致性的核对
通过在主服务器上运行pt-table-checksum,它会通过一系列的MySQL函数计算每个表的散列值,利用主从复制关系,把同样的计算过程在从服务器上重放,从而就拿到了主从服务器各自的散列值,...
iPhone App 开发第一步:从零到真机调试HelloWorld - 更多技术 - 清泛网 - ...
...关系,一直装到/Developer/Applications目录下有XCode并且可以运行就OK,管它报什么错
下载地址:http://119.84.79.248/file/MDAwMDAwMDF7VghQHcS3pe2fEpLJpjLhXnEIbiT2Q2rjkLRIh34mRw../3eae10560d2dd03dfc94918ca224136c8d15/%5Bwww.pc175.com%5DXcode%204.2%20iOS%20SDK%205%20%28S...
convert_tz returns null
... Hi, when I run this command I got error like this : Warning: Unable to load '/usr/share/zoneinfo/iso3166.tab' as time zone. Skipping it. Warning: Unable to load '/usr/share/zoneinfo/zone.tab' as time zone. Skipping it.
– Ghanshyam Katriya
Oct 21 '...
MQTT与TCP的区别 - 创客硬件开发 - 清泛IT社区,为创新赋能!
...CPU和存储等计算资源都很有限的单片机、单板机、RTU等上运行;并能方便的实现移植到不同的硬件上;带宽低,通信流量费用高昂;需要最大限度地减少传输消息大小;卫星不会24小时都覆盖得到,会有段时间发生卫星通信中断...
How to emulate GPS location in the Android Emulator?
...and manually determining the specific latitude and longitude coordinates.
Unable to find anything, I put together a little program that uses GWT and the Google Maps API to launch a browser-based map tool to set the GPS location in the emulator:
android-gps-emulator
Hopefully it can be of use to h...
Convert HTML to NSAttributedString in iOS
...t data = dataUsingEncoding(NSUTF8StringEncoding) else {
print("Unable to decode data from html string: \(self)")
return completionBlock(nil)
}
let options = [NSDocumentTypeDocumentAttribute : NSHTMLTextDocumentType,
NSCharacterEncodingDocum...
LINGO使用指南 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...并分析结果。
§1 LINGO快速入门
当你在windows下开始运行LINGO系统时,会得到类似下面的一个窗口:
外层是主框架窗口,包含了所有菜单命令和工具条,其它所有的窗口将被包含在主窗口之下。在主窗口内的标题为LINGO Model ...
Cleanest way to build an SQL string in Java
...ropFileName);
if (is == null){
throw new SQLException("Unable to load property file: " + propFileName);
}
//singleton
if(props == null){
props = new Properties();
try {
props.load(is);
} catch (IOExceptio...
Lua简明教程 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...屁股已经准备好大便了,那就让我们畅快地排泄吧……
运行
首先,我们需要知道,Lua是类C的,所以,他是大小写字符敏感的。
下面是Lua的Hello World。注意:Lua脚本的语句的分号是可选的,这个和GO语言很类似。
1
...
Best way to detect that HTML5 is not supported
... the WebGLRenderingContext, getContext() may return null if the browser is unable to interface with the GPU due to driver issues and there is no software implementation. In this case, checking for the interface first allows you to skip checking for getContext:
var cvsEl, ctx;
if (!window.WebGLRend...