Given 2 tables T1 and T2.
T1 T2
A 1
B 2
C 3
You make a query SELECT * FROM T1, T2.
What is the no: of rows that are fetched from this query?
Answer is 9
Given 2 tables T1 and T2. T1 T2 A 1 B 2 C 3
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Given 2 tables T1 and T2.
T1 T2
A 1
B 2
C 3
You make a query SELECT * FROM T1, T2.
What is the no: of rows that are fetched from this query?
Answer is 9
This query results in cartesian product because no other conditions are provided. Every row from first table is matched with every row from second table.
The result is