请问sql我要怎么写

表一： 

SELECT
	mp.MouldCode,
	a.ProduceCode,
	a.InsertCode 
FROM
	( SELECT InsertCode, ProduceCode FROM Produce_Inserts WHERE ProduceCode = '06.GA037A.A210B' AND InsertCode NOT IN ( SELECT insertcode FROM Produce_Inserts WHERE ProduceCode = '06.GA036A.C210A' ) ) a
	LEFT JOIN Mould_Produces mp ON a.ProduceCode = mp.ProduceCode

表二： 

SELECT
	mp1.MouldCode,
	a1.ProduceCode,
	a1.InsertCode 
FROM
	( SELECT InsertCode, ProduceCode FROM Produce_Inserts WHERE ProduceCode = '06.GA036A.C210A' AND InsertCode NOT IN ( SELECT insertcode FROM Produce_Inserts WHERE ProduceCode = '06.GA037A.A210B' ) ) a1
	LEFT JOIN Mould_Produces mp1 ON a1.ProduceCode = mp1.ProduceCode

我要把表二连接到表一右边，用左连接会产生笛卡尔积。请问我要怎么写？ 

SELECT
	aa.MouldCode,
	aa.ProduceCode,
	aa.InsertCode,
	bb.ProduceCode,
	bb.InsertCode 
FROM
	(
	SELECT
		mp.MouldCode,
		a.ProduceCode,
		a.InsertCode 
	FROM
		( SELECT InsertCode, ProduceCode FROM Produce_Inserts WHERE ProduceCode = '06.GA037A.A210B' AND InsertCode NOT IN ( SELECT insertcode FROM Produce_Inserts WHERE ProduceCode = '06.GA036A.C210A' ) ) a
		LEFT JOIN Mould_Produces mp ON a.ProduceCode = mp.ProduceCode 
	) aa
	LEFT JOIN (
	SELECT
		mp1.MouldCode,
		a1.ProduceCode,
		a1.InsertCode 
	FROM
		( SELECT InsertCode, ProduceCode FROM Produce_Inserts WHERE ProduceCode = '06.GA036A.C210A' AND InsertCode NOT IN ( SELECT insertcode FROM Produce_Inserts WHERE ProduceCode = '06.GA037A.A210B' ) ) a1
	LEFT JOIN Mould_Produces mp1 ON a1.ProduceCode = mp1.ProduceCode 
	) bb ON aa.MouldCode = bb.MouldCode

数据本来就回产生笛卡尔积，无解