Multiple choice technology databases

A Non equi-join is a join condition that does not contain an equality operator.

  1. True

  2. False

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A Correct answer
Explanation

A non-equi-join is defined as a join condition that uses comparison operators other than equality (=). These include operators like <, >, <=, >=, <>, BETWEEN, LIKE, etc. For example, finding employees whose salary is greater than the department average uses a non-equi-join. The statement is accurate, so 'True' is correct.

AI explanation

The statement is True. A non-equi join is defined as a join whose ON/WHERE condition uses an operator other than '=' — such as <, >, <=, >=, BETWEEN, or !=. An equi-join, by contrast, matches rows using equality; the moment you use any other comparison operator to relate the tables, it becomes a non-equi join.