sql create guid

(Transferred from: http://blog.csdn.net/maonongwu/article/details/6327093)GUID IntroductionGUID (Global unique identifier) Globally unique identifier, which is a 16-byte binary value generated by the identity number on the network card (each network

JavaScript generates GUID (globally unified identifier) and guid unified identifier GUID (globally unified identifier) refers to the number generated on a machine, which ensures that all machines in the same time and space are unique. Generally, the

Background: During this time, I will create some website programs for a tourism website. The data table is roughly as follows: the general situation of the database table is the Access database. There are two data tables: TC_TourCompany and

Today, I listened to the msdn webcast lecture about Data Access to entlib. At the end of the lecture, I asked two questions that I was concerned about: In a large application, if you need more than two sets of databases (such as SQL Server

One, uniqueidentifier is a data type that stores the value of the GUID.uniqueidentifier data type is a 16-byte GUID.A column or local variable of uniqueidentifier data type can be initialized to a value in the following ways: By using the

In a large application, if you need more than two sets of databases (such as SQL Server and Oracle), Can You encapsulate all the required SQL queries in the stored procedure, in this way, you only need a set of access code. Is there a better

After I published the article "Performance Comparison of Self-increment fields and guid field primary keys used in the Database", I got a lot of comments from my friends in the blog Park, we have also proposed some improvement methods for my testing

I recently read a blog post on what is better using GUIDs or Integer values. This is been a age long debate and there be advocates in both camps stressing on the disadvantages of the other. Well both implementations has their advantages and

GUID (Global unique identifier) is a globally unique identifier, which consists of the ID numbers on the NIC (each Nic has a unique ID number) and a 16-byte binary value generated by the unique number of the CPU clock. The GUID format is

In the early stage, I found some information on the Internet to solve the unique order number problem. Someone suggested using the guid type. View the description in msdn as follows: The GUID type indicates a 16-byte (128-bit) guid value. This