unitregistry.unitregistry contains 44 columns - click on heading to sort:

Table	Column	Type	Size	Nulls	Auto	Default	Comments
baseQuantity	baseQuantityId	int unsigned	10		√
baseQuantity	baseUnit	varchar	255	√		null
baseQuantity	baseUnitAbbreviation	varchar	255	√		null
baseQuantity	name	varchar	255	√		null
baseQuantity	symbol	varchar	255	√		null
changeLog	changeLogId	int	10		√
changeLog	entityId	int unsigned	10	√		null
changeLog	entityType	varchar	255	√		null
changeLog	signature	char	32	√		null
changeLog	snapshot	text	65535	√		null
changeLog	timestamp	timestamp	19			CURRENT_TIMESTAMP
comment	comment	text	65535	√		null
comment	commentId	int unsigned	10		√
comment	signature	varchar	255	√		null
comment	timestamp	timestamp	19			CURRENT_TIMESTAMP
comment	unitId	int unsigned	10
login	address	varchar	15	√		null
login	name	varchar	255	√		null
login	signature	char	32	√		null
login	timestamp	timestamp	19	√		CURRENT_TIMESTAMP
login	username	varchar	32	√		null
quantity	name	varchar	255	√		null
quantity	quantityId	int unsigned	10		√
quantity	symbol	varchar	255	√		null
quantityExpression	baseQuantityId	int unsigned	10	√		null
quantityExpression	power	smallint	5	√		null
quantityExpression	quantityExpressionId	int unsigned	10		√
quantityExpression	quantityId	int unsigned	10	√		null
scope	description	text	65535	√		null
scope	name	varchar	255	√		null
scope	scopeId	int unsigned	10		√
unit	abbreviation	varchar	255	√		null
unit	deprecatedDueTo	varchar	255	√		null
unit	deprecatedTo	int unsigned	10	√		null
unit	description	varchar	255	√		null
unit	name	varchar	255	√		null
unit	parentSI	int unsigned	10	√		null
unit	quantityId	int unsigned	10	√		null
unit	siConstant	varchar	255	√		null
unit	siMultiplier	varchar	255	√		null
unit	unitId	int unsigned	10		√
unitScope	scopeId	int unsigned	10	√		null
unitScope	unitId	int unsigned	10	√		null
unitScope	unitScopeId	int unsigned	10		√