大约有 9,000 项符合查询结果(耗时:0.0236秒) [XML]

https://stackoverflow.com/ques... 

Strings as Primary Keys in SQL Database [closed]

...t you should use. I would also say there are definitely times for GUID or UUID fields in databases where an autoincrement field would not work. – Ryan Guill Feb 5 '09 at 20:16 7 ...
https://stackoverflow.com/ques... 

A complete solution to LOCALLY validate an in-app receipts and bundle receipts on iOS 7

.... From RMAppReceipt: - (BOOL)verifyReceiptHash { // TODO: Getting the uuid in Mac is different. See: https://developer.apple.com/library/content/releasenotes/General/ValidateAppStoreReceipt/Chapters/ValidateLocally.html#//apple_ref/doc/uid/TP40010573-CH1-SW5 NSUUID *uuid = [[UIDevice curren...
https://www.tsingfun.com/it/op... 

ZMQ: 基本原理 - 开源 & Github - 清泛网 - 专注C/C++及内核技术

...可丢失这个事实而提供了可靠性保证。 ØMQ抽象了指定发送数据到特定网络位置这样需求。消息是被发送到拓扑,而不是发送给特定终端节点。重新调用哪个与特定商务逻辑紧密相连拓扑意味着当你发送消息给拓扑...
https://www.tsingfun.com/it/op... 

ZMQ: 基本原理 - 开源 & Github - 清泛网 - 专注C/C++及内核技术

...可丢失这个事实而提供了可靠性保证。 ØMQ抽象了指定发送数据到特定网络位置这样需求。消息是被发送到拓扑,而不是发送给特定终端节点。重新调用哪个与特定商务逻辑紧密相连拓扑意味着当你发送消息给拓扑...
https://www.tsingfun.com/it/op... 

ZMQ: 基本原理 - 开源 & Github - 清泛网移动版 - 专注C/C++及内核技术

...可丢失这个事实而提供了可靠性保证。 ØMQ抽象了指定发送数据到特定网络位置这样需求。消息是被发送到拓扑,而不是发送给特定终端节点。重新调用哪个与特定商务逻辑紧密相连拓扑意味着当你发送消息给拓扑...
https://www.tsingfun.com/it/os_kernel/723.html 

将Linux代码移植到Windows简单方法 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术

...去。 利用这些资料,并通过相关工具比如sourceinsight来搜索Cygwin本身源代码,Link问题并不难处理。只是有可能在处理link问题过程中会回复到上面问题,编译不过。这个时候代码修改还是一定要注意不要引入太多新...
https://www.tsingfun.com/it/tech/652.html 

CDN(内容分发网络)技术原理 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...,直接使用被加速网站原有域名即可访问),又要在为指定网站提供加速服务同时降低对ICP影响,只要修改整个访问过程中域名解析部分,以实现透明加速服务,下面是CDN网络实现具体操作过程。   1)、作为ICP...
https://www.tsingfun.com/it/bigdata_ai/341.html 

搭建高可用mongodb集群(二)—— 副本集 - 大数据 & AI - 清泛网 - 专注C/...

...节点,但是可以投票,一般用于备份数据。 Delayed:可以指定一个时间延迟从primary节点同步数据。主要用于备份数据,如果实时同步,误删除数据马上同步到从节点,恢复又恢复不了。 Non-Voting:没有选举权secondary节点,纯...
https://stackoverflow.com/ques... 

Exposing database IDs - security risk?

...is is the only one that should ever be exposed to the client. Using random UUIDs for these is a practical solution for assigning these surrogate keys, even though they aren't cryptographically secure. One place where cryptographically unpredictable identifiers is a necessity, however, is in session...
https://stackoverflow.com/ques... 

Render HTML to PDF in Django site

...source_meta = client.load_resource_metadata( rep_resource_path ) [uuid,out_mime,out_data] = self.client.generate_report(r_resource_path,r_format,r_params) self.assertIsNotNone(uuid) And here is an example of the invocation implementation: from django.db import models import reque...