2012-01-17 35 views

回答

1

爲 '擴展結構' 的常用縮寫。

從數據庫的角度來看,它被用來描述分佈式系統的特定體系結構,該體系結構支持使用諸如兩階段提交等機制的「已確認的分佈式事務」。 IIRC首先在SQL-86規範發佈後不久出現,但在SQL-89之前(因此在SQL-92之前)出現。

請參閱http://www.orafaq.com/usenet/comp.databases.oracle.misc/2004/04/23/0521.htm

1

XAP-PT specification

This document is a CAE Specification (see above). It defines the X/Open ACSE/Presentation 
(XAP) programming interface Transaction Processing extension (XAP-TP). 
X/Open has already defined an ACSE/Presentation (XAP) programming interface (see 
Referenced Documents), which provides for access to the ISO OSI protocol stack at the upper 
two layers (Association Control Service Element and Presentation) of the OSI 7-layer model. 

在我看來,XA代表X/ACSE