资讯

Faiz Currim, Sudha Ram, Modeling Spatial and Temporal Set-Based Constraints During Conceptual Database Design, Information Systems Research, Vol. 23, No. 1 (March 2012), pp. 109-128 ...
The evaluation of solutions performed against the canonical data model, whether those solutions are being designed or considered for purchase, is a qualitative one. There is no expectation that the ...
Teradata, a division of NCR Corporation, has announced the launch of the Teradata Communications Logical Data Model (LDM) Version 5.0. NCR is represented in South Africa by National Data Systems ...