Hi,
You should fetch those values from table UnitOfMeasure(field: Symbol has the value) based on following relations
UnitOfMeasureConversion.FromUnitOfMeasure == UnitOfMeasure.RecId
UnitOfMeasureConversion.ToUnitOfMeasure == UnitOfMeasure.RecId.
So, your query would like like
use [DBNAME}
SELECT TOP 1000 Invent.ITEMID
,Conver.[FROMUNITOFMEASURE]
,Conver.[TOUNITOFMEASURE]
,Conver.[PRODUCT]
,Conver.[FACTOR]
,Conver.[NUMERATOR]
,Conver.[DENOMINATOR]
,Conver.[INNEROFFSET]
,Conver.[OUTEROFFSET]
,Conver.[ROUNDING]
,Conver.[RECID]
,FromUnitOfMeasure.SYMBOL as [FromUnit]
,ToUnitOfMeasure.SYMBOL as [ToUnit]
FROM [dbo].[UNITOFMEASURECONVERSION] as Conver
join [dbo].[InventTable] as Invent
on Conver.PRODUCT = Invent.PRODUCT
join UnitOfMeasure as FromUnitOfMeasure
on Conver.FromUnitOfMeasure = FromUnitOfMeasure.RecId
join UnitOfMeasure as ToUnitOfMeasure
on Conver.TOUNITOFMEASURE = ToUnitOfMeasure.RecId