A note on “Incomplete relational database models based on intervals”

Title	A note on “Incomplete relational database models based on intervals”
Creator	陳良弼 Chiu,Jui-Shang;Chen,Arbee L.P.
Contributor	資科系
Key Words	Incomplete information;disjunctive information;null values;extended relational model;extended relational algebra
Date	1996-02
Date Issued	21-Aug-2014 15:01:18 (UTC+8)
Summary	For original paper, see A. Ola and G. Ozsoyoglu, ibid., vol. 5, no. 2, pp. 293-308 (1993). In that paper, a family of relational database models (M-1 to M-5) were proposed to represent unknown values by intervals. Relational operators were extended for evaluating queries on these models. In this paper, we stultify the theorems, claiming that query evaluation in models M-2, M-3 and M-5 is sound
Relation	IEEE Transactions on Knowledge and Data Engineering (EI,SCI),189-191
Type	article

dc.contributor	資科系	en_US
dc.creator (作者)	陳良弼	zh_TW
dc.creator (作者)	Chiu,Jui-Shang;Chen,Arbee L.P.	en_US
dc.date (日期)	1996-02	en_US
dc.date.accessioned	21-Aug-2014 15:01:18 (UTC+8)	-
dc.date.available	21-Aug-2014 15:01:18 (UTC+8)	-
dc.date.issued (上傳時間)	21-Aug-2014 15:01:18 (UTC+8)	-
dc.identifier.uri (URI)	http://nccur.lib.nccu.edu.tw/handle/140.119/69143	-
dc.description.abstract (摘要)	For original paper, see A. Ola and G. Ozsoyoglu, ibid., vol. 5, no. 2, pp. 293-308 (1993). In that paper, a family of relational database models (M-1 to M-5) were proposed to represent unknown values by intervals. Relational operators were extended for evaluating queries on these models. In this paper, we stultify the theorems, claiming that query evaluation in models M-2, M-3 and M-5 is sound	en_US
dc.format.extent	269970 bytes	-
dc.format.mimetype	application/pdf	-
dc.language.iso	en_US	-
dc.relation (關聯)	IEEE Transactions on Knowledge and Data Engineering (EI,SCI),189-191	en_US
dc.subject (關鍵詞)	Incomplete information;disjunctive information;null values;extended relational model;extended relational algebra	en_US
dc.title (題名)	A note on “Incomplete relational database models based on intervals”	en_US
dc.type (資料類型)	article	en