大约有 240 项符合查询结果（耗时：0.0288秒） [XML]
Is a GUID unique 100% of the time?
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Wouldn't they be called a UUID, then? ;)
– Arafangion
May 8 '09 at 6:23
30
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Check if application is on its first run [duplicate]
....io.IOException;
import java.io.RandomAccessFile;
import java.util.UUID;
import android.content.Context;
public class Util {
// ===========================================================
//
// ===========================================================
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凤姐当天使 徐小平胡海泉薛蛮子王刚怎么看？ - 资讯 - 清泛网 - 专注C/C++...
...织的搭建，核心VP选人方面，你有没有贡献、有没有帮他筛选，一个企业的成功，这三个方面是非常重要的。选场地是有附加的价值，有的不一定要你的场所，你有自己公司的文化，他一定要自己装饰。所以我觉得更重要的是，...
What does it mean: The serializable class does not declare a static final serialVersionUID field? [d
...have a host of things to worry about all centered around the proper use of UUID. Basically, the UUID is a way to "version" an object you would serialize so that whatever process is de-serializing knows that it's de-serializing properly. I would look at Ensure proper version control for serialized ob...
How to resize a VirtualBox vmdk file
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The UUIDs mismatch after doing this (and replacing the original drive). VirtualBox 5.1.12 won't update the UUID automatically. I had to remove the hard drive from the list of known hard drives (File -> Virtual Media Manager) a...
How should I store GUID in MySQL tables?
... For the curious, these functions are superior to just UNHEX(REPLACE(UUID(),'-','')) because it arranges the bits in an order that will perform better in a clustered index.
– Slashterix
Feb 2 '14 at 1:28
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How to change Vagrant 'default' machine name?
... change when you restart. (3) The project is mapped to a VirtualBox VM via UUID, which is stored in PROJECT_ROOT/.vagrant/machines/default/virtualbox/id. This UUID is not visible in the VirtualBox GUI (virtualbox.org/ticket/6989), but you can use VBoxManage list vms on the command line.
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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
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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...
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...