Joing two databases and then Outer Joining

Hi ,

I;m fairly new at SQL 2012 so hopefully someone can help me.

I've been asked to do the following on some tables and could use some input.

I want join fron database A table1 and table2.

I would assume that I need to look at these table and determine what is the common primary key.

Then after joining these tables I need to "outer join" Table 1 and 2 to database B table 3

I thought to use Management studio. would this be the correct join cpmmand?

select table1, table2

From Database A

Where primary key = primary key

I don't know how to write the outer join statement from here. Any suggestions?

thanks

Steve

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Steve