In the relational model of data the Boyce-Codd-Heath normal form, commonly just known as Boyce-Codd normal form, guarantees the elimination of data redundancy in terms of functional dependencies. For efficient means of data processing the industry standard SQL permits partial data and duplicate rows of data to occur in database systems. Consequently, the combined class of uniqueness constraints...

Abstract June Boyce-Tillman and Keith Swanwick’s article on musical development is the second most widely cited paper in history of British Journal Music Education. It appears many discussions development. A selection diverse domains where includes: instrumental teaching, Special Education Needs, primary school learning for professional musicians, secondary musicians’ skill development, adult m...

A functional dependency (fd) family was recently defined [20] as the set of all instances satisfying some set of functional dependencies. A Royce-Codd normal form, abbreviated RCNF. family is defined here as an fd-family specified by some RCNF set of functi!)nal dependem& . The purpose of this paper is to present set-theoretic/algebraic characterizations relating to both types of families. Two ...

1. Introduction

It is well known that faithful (i.e. dependency preserving) decompositions of relational database schemas into Boyce-Codd Normal Form (BCNF) do not always exist, depending on the set of functional dependencies given, and that the corresponding decision problem is NPhard. The only algorithm to guarantee both faithfulness and BCNF (if possible) proposed so far in [Os79] is a brute-force approach ...

4. Sugimoto T, Funae H, Rubben S. et al. Resolution of proteins in the kidney matrix using high performance liquid chromatography. Eur Urol 1985;11:339-40. 5. King Jr JS, Boyce WH. Amino acid and carbohydrate composition of the mucoprotein matrix in various calculi. Proc Soc Exp Biol Med 1957;95:183-7. 6. Boyce WH. Organic matrix of human urinary concretions. Am J Med 1968;45:673-83. 7. Spector...

5 6 7 8 9 10 11 12 Jian Zhou and Gary W. Blissard 13 14 15 16 17 18 19 Boyce Thompson Institute at Cornell University, Ithaca, New York 14853 20 2 Department of Entomology, Cornell University, Ithaca, NY 14853 21 22 23 24 25 26 27 28 29 30 Corresponding Author: 31 Gary W. Blissard 32 Boyce Thompson Institute at Cornell University 33 Tower Road, Ithaca, NY 14853 34 Tel. 607-254-1366 35 Fax: 607-...