Oracle8i introduces SYS_GUID, which has many advantages over the traditional sequence used by Oracle administrators. A sequence generator simply creates a series of integers starting from a given starting point, and is used to automatically
Generate the guid type in Oracle -- sys_guid () function
Oracle8i introduces sys_guid, which has many advantages over the traditional sequence used by Oracle administrators. A sequence generator simply creates a series of integers starting from a
Javascript to generate a globally unique identifier (GUID, UUID), guiduuid
A Globally Unique Identifier (GUID, Globally Unique IDentifier) is also called a UUID (Universally Unique Identifier ).
GUID is a 128-bit numeric identifier generated by an
Uses a GUID generated by a database of type string.
guid:globally Unique Identifier, a globally unique identifier, also known as a UUID, is a 128-bit long number, expressed as a 16 binary. The core idea of the algorithm is to combine the machine's
Hibernate generator element generates the primary key for new record. There are provided options provided by the generator method to be used in different situations.
The element
Here is the example
Here are the list of some commonly used
Service, distributed has become the first choice for system development, high concurrency operation in the data storage, need a set of ID generator services to ensure the distribution of global uniqueness, to ensure that the system's order creation,
ID Generation:
ID generator visible code not available within hibernate
Using @generatedvalue
1 can be used at the same time for different databases
@Id @GeneratedValue(strategy = GenerationType.AUTO)
2 for MySQL
@Id
Http://weblogs.asp.net/soever/archive/2006/11/11/SharePoint-Solution-Generator-_2D00_-part-1_3A00_-create-a-site-definition-from-an-existing-site.aspx
This is Part 1 in a series of blog post on the SharePoint solution generator.
the
net Layered Schema builder
· Download Source-157 KB
· Download sample-456 KB
Brief Introduction
There are many Object relational mapping (ORM) and Code generation programs (generator), such as (nhibernate,nettiers,entity framework, etc.), some of
Java UUID Generator (JUG), uuidjug
UG is a Java-only UUID generator. UUID refers to the number generated on a machine, which ensures that all machines in the same time and space are unique. Generally, the platform provides APIs for UUID generation.
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