[Retracted] Schema-Based Mapping Approach for Data Transformation to Enrich Semantic Web

Table 2

Table representation of mapping descriptions of Figure 3.

(a) Column mapping

RDF: property	RDB.column	Data type
Name	VFX-Engg.Name; Company.Name; Product.Name	Literal
foaf:name	VFX-Engg.Name	Literal
Role	VFX-Product.Role	Literal
Media	Product.Type	Literal
Date	VFX-Product.Date	Date
Address	Company.Location	Literal
Email	Contact-Details.Email	Literal
Phone	Contact-Details.Mobile	Literal
Major	VFX-Engg.Expertise	Literal

(b) Foreign key mapping

Primary	Secondary	Join.expression
VFX-ENGINEER	Contact-Details	VFX-ENGINNER.ID^Contact-Details.CID

(c) Relation mapping

RDF.relation	RDB.relation	RDB.table	Join.expression
Collaborate	Assistant or cowork	VFX-ENGINEER	VFX-ENGINEER.Assistant+VFX-ENGINEER.ID
Work	Work	VFX-ENGINEER, COMPANY	VFX-ENGINEER.DID=Company.COID
Accomplish	Accomplish	VFX-ENGINEER,VFX-PRODUCT	VFX-ENGINEER.ID=VFX-PRODUCT.VID; VFX-PRODUCT.PID=Product.PID
Contact	Contact	VFX-ENGINEER	VFX-ENGINEER.ID=Contact-Details.CID