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sql - How to combine results of two queries into a single dataset

I have two queries : Queries Simplified excluding Joins

Query 1 : select ProductName,NumberofProducts (in inventory) from Table1.....;
Query 2 : select ProductName, NumberofProductssold from Table2......;

I would like to know how I can get an output as :

ProductName NumberofProducts(in inventory)  ProductName NumberofProductsSold

The relationships used for getting the outputs for each query are different. I need the output this way for my SSRS report .

(I tried the union statement but it doesnt work for the output I want to see. )

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Here is an example that does a union between two completely unrelated tables: the Student and the Products table. It generates an output that is 4 columns:

select
        FirstName as Column1,
        LastName as Column2,
        email as Column3,
        null as Column4
    from
        Student
union
select
        ProductName as Column1,
        QuantityPerUnit as Column2,
        null as Column3,
        UnitsInStock as Column4
    from
        Products

Obviously you'll tweak this for your own environment...


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