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CREATE TABLE Country $($

PopDensity DECIMAL $(7,2),$

ISOCOde$3$ CHAR$(3),$

Code SMALLINT NOT NULL,

$15$to$64$PopPct FLOAT,

IndepYear SMALLINT NOT NULL,

Capital VARCHAR$(15)$

;

Which columns can contain NULL values?

PopDensity

ISOCode$3$

Code

$15$to$64$PopPct

IndepYear

Capital