里程表
发表于 2025-3-21 16:55:45
书目名称Entity-Relationship Approach - ER ‘92影响因子(影响力)<br> http://figure.impactfactor.cn/if/?ISSN=BK0311661<br><br> <br><br>书目名称Entity-Relationship Approach - ER ‘92影响因子(影响力)学科排名<br> http://figure.impactfactor.cn/ifr/?ISSN=BK0311661<br><br> <br><br>书目名称Entity-Relationship Approach - ER ‘92网络公开度<br> http://figure.impactfactor.cn/at/?ISSN=BK0311661<br><br> <br><br>书目名称Entity-Relationship Approach - ER ‘92网络公开度学科排名<br> http://figure.impactfactor.cn/atr/?ISSN=BK0311661<br><br> <br><br>书目名称Entity-Relationship Approach - ER ‘92被引频次<br> http://figure.impactfactor.cn/tc/?ISSN=BK0311661<br><br> <br><br>书目名称Entity-Relationship Approach - ER ‘92被引频次学科排名<br> http://figure.impactfactor.cn/tcr/?ISSN=BK0311661<br><br> <br><br>书目名称Entity-Relationship Approach - ER ‘92年度引用<br> http://figure.impactfactor.cn/ii/?ISSN=BK0311661<br><br> <br><br>书目名称Entity-Relationship Approach - ER ‘92年度引用学科排名<br> http://figure.impactfactor.cn/iir/?ISSN=BK0311661<br><br> <br><br>书目名称Entity-Relationship Approach - ER ‘92读者反馈<br> http://figure.impactfactor.cn/5y/?ISSN=BK0311661<br><br> <br><br>书目名称Entity-Relationship Approach - ER ‘92读者反馈学科排名<br> http://figure.impactfactor.cn/5yr/?ISSN=BK0311661<br><br> <br><br>
Mere仅仅
发表于 2025-3-21 22:11:14
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troponins
发表于 2025-3-22 00:48:19
Local referential integrity,chema by using “local object classes” as domains of relationships. A local object class is a set of objects belonging exclusively to some composite object. Local referential integrity is maintained if any relationship from within a composite object to one of its local classes references a current me
乏味
发表于 2025-3-22 07:54:10
Embedding data modelling in a general architecture for integrated information systems,which are generic for a particular type of industry, can be used to improve the quality and reduce the development effort for enterprise-specific data models. Their utilization should be incorporated into ISDMs and the corresponding CASE-tools. Furthermore, the architecture shows a clear need for
脾气暴躁的人
发表于 2025-3-22 12:41:21
The next ten years of modeling, methodologies, and tools,
CLAM
发表于 2025-3-22 16:42:21
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CLAM
发表于 2025-3-22 18:59:13
0302-9743 October 7-9, 1992. It containsthe full versions of all the 22 accepted papers selectedfrom in total 64 submissions; in addition, the twoinvitedtalks by Scheer and by Tsichritzis and others arerepresented asfull papers and the two other invitedspeakers contribute extendedabstracts.All the contributio
提升
发表于 2025-3-22 22:55:34
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Notorious
发表于 2025-3-23 03:33:47
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JAUNT
发表于 2025-3-23 07:03:55
ered to obtain general expressive power. The major contribution of this paper is that, for every query specification with any depth of nesting of quantification, there is an equivalent . form which can be easily processed by database management systems.