Using constraints to describe source contents in data integration systems
Author/Authors :
Li، Chen نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2003
Pages :
-48
From page :
49
To page :
0
Abstract :
In data integration systems, information sources often have constraints, such as "all houses stored at a source have a unique address." These constraints are useful in computing answers to queries and facilitating information exchange.
