/* -- PL/SQL -- BIND Variablen var b_max_salary number; exec :b_max_salary := 8000; select count(*) from employees where salary > :b_max_salary; */ -- Substitution Variablen -- accept p_max_sal prompt "Max Salary eingeben: " default 10000; def p_max_sal = 8000; select count(*) from employees where salary > &p_max_sal;