TD018

Properties of Attributes in entity 3 table: Tissue and overall Log Densities

Name	Keyfield	Nullable	Type	Domain	Scale	NumType	Range	Precision	Units
DBCODE	N	N	char(5)	enum	nominal
ENTITY	N	N	numeric(2,0)	range	interval	natural	3.-3.	1.	number
STUDYID	N	N	char(4)	place	nominal
YEAR	Y	N	numeric(4,0)	range	datetime		1900.-2050.	1.	year (yyyy)
TIME	Y	N	numeric(4,0)	range	ratio	natural	0.-140.	1.	number
SUB	Y	N	char(2)	enum	nominal
SPECIES	Y	N	char(4)	taxa	nominal
SUBDEN	N	N	numeric(5,3)	range	ratio	real	0.148-0.571	0.001	grams per cubic centimeter
LOGDEN	N	N	numeric(5,3)	range	ratio	real	0.192-0.454	0.001	grams per cubic centimeter
SAMPLEDATE	N	Y	date	range	datetime		Mar 18 1991-Mar 17 1998		date as date type