database question

6- In SQl, union compatible means the same number of columns but corresponding columns can have different data type and length. TRUE FALSE) 7- In SQL, difference of two tables is a table containing set of all rows that are in the first table but not in second table. TRUE( ) FALSE } 8. When using Right Outer Join statement, all rows from the left table will be displayed regardless they are matching rows from the right table or not. TRUE FALSE When using Full Outer Join statement, all rows from both tables will be displayed regardless of matches 9- TRUE FALSE ) 10-To obtain a Cartesian product of two tables, use the multiplication sign in the FROM clause between the two tables. TRUE FALSE)