Consider the following three SQL queries (Assume the data in the people table):
If the SQL queries a and b above, return 10 rows and 7 rows in the result set respectively, then what is one possible number of rows returned by the SQL query c?
Name from people where Age>21=10
Name from people where Height>180=7
then those who have Age>21 and Height>180 will be (intersection) =7 names, which are included in query(a) output=10, then remaining names out of 10 will be 3 names that does not satisfy both condition but first condition.