how to join this sql query

How to join dell and sony?

TableName1: dell

SELECT  a1.model,a1.rating, COUNT(a2.rate) ModelRank
FROM dellfeedback a1, dellfeedback a2 
WHERE a1.commands like '%light%'  and (a1.rating!='poor' and a1.rating!='Not Poor' and (a1.rate <= a2.rate or (a1.rate=a2.rate and a1.model = a2.model))) 
GROUP BY a1.model, a1.rating 
ORDER BY ModelRank DESC

TableName2: Sony

SELECT a1.model,a1.rating,  COUNT(a2.rate) Sales_Rank 
FROM Sonyfeedback a1, Sonyfeedback a2 
WHERE a1.rating!='poor' and a1.rating!='Not Poor' and(a1.rate <= a2.rate or (a1.rate=a2.rate and a1.model = a2.model) )
GROUP BY a1.model, a1.rating 
ORDER BY Sales_Rank DESC

any one tell me here attach my Source

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