Sure :D hmm..how about music?
Explanation:
Mid-Square Method:-In this method some it takes some digits from the square of a number.This number is a random number.This number can be used as a key for hashing.
This technique is mostly used in hashing so decrease the collision in hash maps.
This method has a limitation that when we square a large number it may go out of range of integer so we have handle those cases.
Answer:
FROM.
Explanation:
UPDATE table
SET column=value,column1=value1,.....
WHERE condition;
In the UPDATE command given in the question FROM is optional because when using UPDATE we already mention the table name with update look at the syntax above.So there is no need to again mention the table name in FROM.All other three are required that is UPDATE,SET,WHERE.