Journal of Big Data

Table 3 A list of metadata extracted from RDB

From: A novel approach for learning ontology from relational database: from the construction to the evaluation

RDB	Tables	Columns	PKs	FKs	Instances
North	30	150	30	25	5029
Iscommerce	5	20	5	6	200
Ecommerce	25	100	25	17	5000
EcommerceDB	3	20	4	2	1000
Sakila	16	90	18	22	47,237
Northwind	13	89	16	13	2110

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