Abstract: The relational database model (RDM), proposed by Codd, has been proven to be a very useful model in many applications. The inherent of the RDM is effective for precise and unambiguous data.

A relational DBMS organizes and accesses data according to relationships among data items. The relationships among data items are expressed by tables consisting of columns and rows. The order of the ...

Abstract: In this paper we present a formal model of semantics for cisets, ciset relations and ciset relational operators. The notion of alternate worlds is used to formalize the information content ...

[a-zA-Z]+ { printf("\n%s is a WORD", yytext); } "==" { printf("\n%s is a RELATIONAL OPERATOR", yytext); } "!=" { printf("\n%s is a RELATIONAL OPERATOR", yytext ...

Kx Systems has been selected to provide its kdb+ database to Ontario, Canada’s Independent Electricity System Operator to support the retrieval and querying of smart meter data processed by Ontario's ...

[a-zA-Z]+ { printf("\n%s is a WORD", yytext); } "==" { printf("\n%s is a RELATIONAL OPERATOR", yytext); } "!=" { printf("\n%s is a RELATIONAL OPERATOR", yytext ...