how can I break a line as line 1 & line 2 of address column while inserting values in table ?

Answer 1

could you please give a query as example?

Answer 2

INSERT INTO students(name, fathername, course) VALUES('david', 'andreson', 'SQL');

I recommend using line breaks after every complete clauses for better readability.
the above query can be written as:

INSERT INTO
students(name, fathername, course)
VALUES('david', 'andreson', 'SQL');

Answer 3

char(13)

Answer 4

c