I have a table like the following ID_A ID_B Avg_Class_Size 1 2 16 3 4 10 2 3 8 2 4 9 Where ID_A and ID_B represent distinct student ID codes, and AVG_Class_Size represents the average class size of the classes shared between students A and B. I would like to calculate the average of the “avg_class_size” for each student,
Incase one of the 2 tables that I am CROSS joining is having duplicates, will there be duplicates in the output as well?
Table1 : Col1 1 2 Table2 : Col1 A B B what will be the o/p of : select Table1.col1 from Table1 cross join Table2.col1 from Table2;
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