Session.SessionID can be use it for Primary Key?

最新推荐文章于 2024-04-02 09:58:25 发布

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#windows #server #session #microsoft #database #object

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本文介绍了Session.SessionID属性，它是服务器创建会话时生成的唯一标识符。SessionID以LONG数据类型返回，但不适用于生成数据库应用程序的主键值。文章还提到了在不同操作系统上的应用需求，并推荐使用自动递增的数据类型作为主键。

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Session.SessionID

The SessionID property returns the session identifier (session ID), a unique identifier that is generated by the server when the session is created. The session ID is returned as a LONG data type.

Syntax

Session.SessionID

Applies To

Session Object

Remarks

You should not use the SessionID property to generate primary key values for a database application. This is because if the Web server is restarted, some SessionID values may be the same as those generated before the server was stopped. Instead, you should use an auto-increment column data type, such as IDENTITY with Microsoft? SQL Server? or COUNTER with Microsoft Access.

Requirements Client:

Requires Windows XP Professional, Windows 2000 Professional, or Windows NT Workstation 4.0.

Server:

Requires Windows Server 2003, Windows 2000 Server, or Windows NT Server 4.0.

Product:

IIS