create new guid sql

(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

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

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

As we all know, the IDs in database tables are not repeatable, you can automatically fill out the growth ID by identifying the ID column as identity when you create the table, without requiring personal maintenance. However, due to various reasons,

13. T-SQL and SQL query AnalyzerWhat is SQL?What is T-SQL?Introduce new features of T-SQLHow to Use T-SQLSummaryIn this chapter, we will introduce some basic concepts about the Structured Query Language and transact-SQL and their differences. This

Memory-Optimized tables are a new feature of SQL Server 2014, which can put tables in memory, which significantly improves DML performance.For memory-optimized tables, refer to the two Heroes article: SQL Server 2014 new features Quest (1)-Memory

When single-table data is too long. We can divide the level, the SQL Server partitioned view to achieve a horizontal table, horizontal division can improve some of the performance of the table.The vertical sub-table is relatively rare to see and use,

access|server|sql| Comparison | tips Background database:[Microsoft Access]And[Microsoft SQL Server]After the replacement, the ASP code should note some of the areas to be modified: [One] connection problem (for example)[Microsoft Access]Constr =