Encountered the symbol "end-of-file" when expecting one of the following

Question

I'm trying to print Fibonacci series in plsql

this is the procedure

CREATE OR REPLACE PROCEDURE fibos(n IN number) IS
DECLARE  
first number := 0; 
second number := 1; 
temp number;   
i number; 
BEGIN
dbms_output.put_line('Series:'); 
dbms_output.put_line(first); 
dbms_output.put_line(second); 
for i in 2..n 
loop 
temp:=first+second; 
first := second; 
second := temp; 
dbms_output.put_line(temp); 
END loop; 
END; 
/

Warning: Procedure created with compilation errors.

and this is the where I call procedure:

DECLARE
a number := &a;
BEGIN
fibos(a);
/

and this is the error I'm getting

fibos(a); * ERROR at line 4: ORA-06550: line 4, column 9: PLS-00103: Encountered the symbol "end-of-file" when expecting one of the following: begin case declare end exception exit for goto if loop mod null pragma raise return select update while with << close current delete fetch lock insert open rollback savepoint set sql execute commit forall merge pipe

Answer 1

Remove DECLARE in the CREATE PROCEDURE statement and add a END; to your anonymous block calling it.

CREATE OR REPLACE PROCEDURE fibos(n IN number) IS
first number := 0; 
second number := 1; 
temp number;   
i number; 
BEGIN
dbms_output.put_line('Series:'); 
dbms_output.put_line(first); 
dbms_output.put_line(second); 
for i in 2..n 
loop 
temp:=first+second; 
first := second; 
second := temp; 
dbms_output.put_line(temp); 
END loop; 
END; 
/

DECLARE
a number := &a;
BEGIN
fibos(a);
END;
/

db<>fiddle