Question: Add a constraint called UniqueCode that ensures the ContinentCode and ISOCode 3 combination is unique. CREATE TABIE Country ( continentcode CHAR ( 2 ) ,

Add a constraint called UniqueCode that ensures the ContinentCode and ISOCode3 combination is unique.
CREATE TABIE Country (
continentcode CHAR (2),
ISOCode 3 CHAR (3),
Name VARCHAR (60),
A
Add a constraint called UniqueCode that ensures the ContinentCode and ISOCode3

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