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How do you create a random string that's suitable for a session ID in PostgreSQL?
... years old. Check out this for a totally different method using gen_random_uuid(): faster, more randomness, more efficiently stored in the database.
– Evan Carroll
Jan 12 '17 at 8:11
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Generating Guids in Ruby
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As of Ruby 1.9, uuid generation is built-in. Use the SecureRandom.uuid function.
For example:
require 'securerandom'
SecureRandom.uuid # => "96b0a57c-d9ae-453f-b56f-3b154eb10cda"
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nsis指定默认安装路径，记住上次安装路径 - 更多技术 - 清泛网 - 专注C/C++...
nsis指定默认安装路径，记住上次安装路径!define PRODUCT_DEFAULT_PATH "C: Test"....InstallDir "${PRODUCT_DEFAULT_PATH}"InstallDirRegKey HKLM "Software Microsoft Windo...!define PRODUCT_DEFAULT_PATH "C:\Test"
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InstallDir "${PRODUCT_DEFAULT_PATH}"
InstallDirRegKey HKLM "Softwar...
How to find serial number of Android device?
...oogle's recommendations, I implemented a class that will generate a unique UUID for each device, using ANDROID_ID as the seed where appropriate, falling back on TelephonyManager.getDeviceId() as necessary, and if that fails, resorting to a randomly generated unique UUID that is persisted across app ...
IOException: read failed, socket might closed - Bluetooth on Android 4.3
...;
import java.lang.reflect.Method;
import java.util.List;
import java.util.UUID;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothSocket;
import android.util.Log;
public class BluetoothConnector {
private BluetoothSocketWra...
ZMQ: 基本原理 - 开源 & Github - 清泛网 - 专注C++内核技术
...泛网 关于我们 免责申明 联系我们 手机版 IT搜索 下载栏目 图片栏目 网站地图 IT技术 C/C++ 开源 & Github 数据库(内核) 大数据 & AI 其他 IT专题 还在用Java开发安卓App？你out啦！ 轻松创APP ...
How do I create a unique ID in Java? [duplicate]
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Create a UUID.
String uniqueID = UUID.randomUUID().toString();
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苹果全球开发者大会：无硬件 iOS 9等三大系统更新 - 资讯 - 清泛网 - 专注C...
...i会提醒你应该出发的时间。iOS 9还将提供更深层面的信息搜索，苹果甚至提供了搜索的API接口，这样用户可以搜索到APP内部的信息等更多内容。
在日常使用方面iOS 9将提供更为智能的体验，当你早上拿起iPhone的第一时间，它会...
The JPA hashCode() / equals() dilemma
... it. I let JPA implementation to change the field instead of the property.
UUID solution seems to be overkill. Why UUID if you have natural business id? I would after all set the uniqueness of the business id in the database. Why having THREE indexes for each table in the database then?
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How to create GUID / UUID?
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UUIDs (Universally Unique IDentifier), also known as GUIDs (Globally Unique IDentifier), according to RFC 4122, are identifiers designed to provide certain uniqueness guarantees.
While it is possible to implement an RFC-comp...