Temporary Tables and the TableType Property [AX 2012]

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Updated: November 5, 2013

Applies To: Microsoft Dynamics AX 2012 R2, Microsoft Dynamics AX 2012 Feature Pack, Microsoft Dynamics AX 2012

从 Microsoft Dynamics AX 2012 开始, 所有表都有 TableType 属性, 用它来替代 Microsoft Dynamics AX 2009 和更早版本中的 Temporary 属性.

The TableType Property

 

The following table describes the TableType property.

Value

Description

Regular

The default value. 永久表.

TemporaryInMemory

作为一个带索引顺序存取方法(ISAM,indexed sequential access method)文件存在的临时表. ISAM file 可以在应用程序对象服务器(AOS)层的任意客户端层存在. 基本的 Microsoft SQL Server 没有连接到ISAM文件.

系统确实允许你在 X++ SQL 语法中加入一个InMemory 表. 然而,对这种表进行join或其它操作效率低.

For more information, see Temporary InMemory Tables .

InMemory table 和以前在 Microsoft Dynamics AX 2009 中的 temporary table 是一个东西.

TemporaryTempDB

一个临时表存在于SQL Server底层的TempDB数据库. TemDB表的格式不标准,因为当不在使用当前方法时,它就会被丢弃.

对TempDB进行Joins,和另一套操作是有效率的.

For more information, see Temporary TempDB Tables .

See also

 

Tables, Views, and Maps

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