Research and implementation of the active rules in ORDBMS

CORC > 北京大学 > 信息科学技术学院

	Research and implementation of the active rules in ORDBMS
	Li, Hong-Yan ; Li, Zhan-Huai ; Tang, Shi-Wei
刊名	ruan jian xue baojournal of software
	2001
英文摘要	The formalized description of active rules in ORDBMS (object-relational database management system) is presented. The semantics of rule components, rule inheritance, rule operations, multiple rule triggering and rule cascade triggering is fully discussed. And a simplified E-C-A (event-condition-action) model called S E-C-A model suited to ANGEL system is achieved. Four types of rules (update-update rules, update-query rules, query-update rules and query-query rules), C-A coupling mode and priority definition of conflicting triggers are supported in S E-C-A. The capabilities to express and actualize set constraints are gained by extending NEW and OLD to a kind of path quantifier in expression forms of trigger constraint. And the analytic methods of rule behaviors based on transaction are also presented.; EI; 0; 9; 1329-1335; 12
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/330107]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Li, Hong-Yan,Li, Zhan-Huai,Tang, Shi-Wei. Research and implementation of the active rules in ORDBMS[J]. ruan jian xue baojournal of software,2001.
APA	Li, Hong-Yan,Li, Zhan-Huai,&Tang, Shi-Wei.(2001).Research and implementation of the active rules in ORDBMS.ruan jian xue baojournal of software.
MLA	Li, Hong-Yan,et al."Research and implementation of the active rules in ORDBMS".ruan jian xue baojournal of software (2001).