Hello guys, i am getting trouble in running pl/sql file,
1- i make file with this source code "abc.sql"

declare
v_abc number(10);
begin
select id
into v_abc
from table;
end;

2- then i run this file from sql plus prompt.
@abc.sql

the problem is here it is not working, it shows this next line (8), as in code, there are 7 lines.

so how i can run this file , and print the value of v_abc,
thanks