PPT Slide

CREATE VIEW PotentialCustomer (VE = SUPERSET ) AS

SELECT IS2.MASSBRANCH.CName ( AD = FALSE, AR = TRUE )

IS2.MASSBRANCH.Phone ( AD = TRUE , AR = TRUE )

FROM IS2.MASSBRANCH ( RD = FALSE, RR = TRUE )

IS3.FLIGHTRES ( RD = FALSE, RR = FALSE )

WHERE IS2.MASSBRANCH.CName=IS3.FLIGHTRES.PName ( CD = FALSE, CR = TRUE )

Evolvable Views and Meta Knowledge

Information Containment Constraint:

Type Constraint:

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