DBMS%20Interview%20Questions%20and%20Answers
Question: What is “CROSS JOIN”? or What is Cartesian product?Answer:“CROSS JOIN” or “CARTESIAN PRODUCT” combines all rows from both tables. Number of rows will be product of the number of rows in each table. In real life scenario I can not imagine where we will want to use a Cartesian product. But there are scenarios where we would like permutation and combination probably Cartesian would be the easiest way to achieve it. |
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