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Which is not a type of join in T-SQL?(a) Equi-join(b) Natural join(c) Outer join(d) Cartesian joinThe question was posed to me in an online quiz.My question is taken from Joins in section Laying the Foundation of SQL Server |
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Answer» RIGHT answer is (b) Natural join The explanation is: 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. |
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