rfc 4122

Project deployment, the following warnings are available during startup:[WARN]: Using org.hibernate.id.UUIDHexGenerator which does not generate IETF RFC 4122 compliant UUID values; Consider using Org.hibernate.id.UUIDGenerator insteadTo view the

Project deployment, the following warnings are available during startup:[WARN]: Using org.hibernate.id.UUIDHexGenerator which does not generate IETF RFC 4122 compliant UUID values; Consider using Org.hibernate.id.UUIDGenerator insteadTo view the

The UUID module is introduced after Python 2.5, which includes: Immutable object UUID (UUID Class) and Functions Uuid1 (), UUID3 (), Uuid4 (), and UUID5 (), followed by four functions for generating 1th, 3, 4, specified in the RFC 4122 specification

This article comes from http://my.oschina.net/noahxiao/blog/132277, personal storage use1. BackgroundWhen I use Hibernate to do object mapping, I always use the UUID to master the key. Since Hibernate's UUID needs to occupy 32-bit characters, it

What is the sequence "Sequence"(1) Similar to the Auto_increment automatic growth mechanism in MySQL, but no auto_increment mechanism in Oracle(2) is a mechanism provided by Oracle to produce a unique numeric value(3) The main health value of the

This is a creation in Article, where the information may have evolved or changed. Go language UUID Package//UUID pack for Go name Go.uuid Address Github Author Satori, etc. Brief

Transferred from: http://www.jianshu.com/p/b83b0240bd0eExploring the unique identity of iOS devicesTo count and detect the usage data for the application, almost every company has a business need to obtain a unique identity, and a unique

Python official Doc: 20.15. uuid-UUID objects according to RFC 4122 UUID algorithm Introduction: A Universally Unique IDentifier (UUID) URN Namespace Overview: UUID is A 128-bit globally Unique IDentifier, it is usually represented by a 32-byte

Reference JDKUUIDextends objectimplements Serializable, comparableA class that represents a universally unique identifier (UUID). The UUID represents a 128-bit value.These generic identifiers have different variants. This class of methods is used to

Select Sys_guid () from dual;-->78ae331adb2b4ce7ab598b1317b39d58But the function has the following problem: 1 . The return type is raw 2 . No- (dash) delimiter 3 . Capitalization of letters returnedTo make the resulting UUID conform to the RFC