Natural Join Self Doubt

Question

how to write the query for natural join on three relations in SQL using the NATURAL JOIN clause?

Comments

correct so now my question is how will u implement this in SQL w/o using any equality condition

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Select sname,pname from Suppliers Natural-join Parts Natural-join Catalog

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U can see more on natural join in :https://stackoverflow.com/questions/5147453/how-to-do-3-table-natural-join