• Michael Valentine Jones (11/11/2008)


    A NATURAL JOIN is an inner join where the RDBMS automatically selects the join columns based on common columns names. Some RDBMS vendors, like Oracle but not SQL Server, implement a NATURAL JOIN operator:

    SELECT

    *

    FROM

    dbo.Product

    NATURAL JOIN

    dbo.ProductInventory

    For more info:

    http://en.wikipedia.org/wiki/Join_(SQL)#Natural_join

    I had found that article too but I would really love to find your comment (i.e. "Some RDBMS vendors, like Oracle but not SQL Server, implement a NATURAL JOIN operator" -- italics added by me) in that article or some other source that I could offer the test admin.