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P.A. Bernstein, S. Melnik: Meta Data Management, ICDE'04 Boston
Diff
Diff
m_mA ○ mA_mA¢
m_mB ○ mB_mB¢
mA¢
OrderID
Product
Rebate
mB¢
OrderID
Product
Discount
ShipDate
mAx
Rebate
Discount
ShipDate
mBx
lIdentify
additions
(Diff)
OrderID
Product
Brand
m