input

DECLARE
var_salary number;
var_string varchar;
var_float float;
BEGIN
SELECT salary INTO var_salary FROM employee ;
IF ( var_float > 3 ) 
THEN 
 dbms_output.put_line(var_salary); 
ELSE 
 dbms_output.put_line(var_string); 
END IF;

var_salary := 100;

LOOP x := x + 10;
      dbms_output.put_line(x);
      IF x > 50 THEN
         exit;
      END IF;
   END LOOP;

WHILE a < 20 LOOP
      a := a + 1;
   END LOOP;

FOR a in 10 .. 20 LOOP
  dbms_output.put_line(a);
	dbms_output.put_line(y);
END LOOP;

CREATE OR REPLACE PROCEDURE greetings
AS
BEGIN
   dbms_output.put_line(k);
SELECT salary INTO var_salary FROM employee ;
   dbms_output.put_line(y);
   WHILE a < 20 LOOP
      a := a + 1;
   END LOOP;
END;

greetings();

CREATE OR REPLACE FUNCTION employer_details_func
    RETURN varchar;
 IS 
    var_salary varchar; 
 BEGIN 
	SELECT salary INTO var_salary FROM employee;
	RETURN var_salary;
 END;

e = employer_details_func();

dbms_output.put_line(var_float);
END