Need help with Stored Procedures iin MySQL 5.0.3-beta

[Anchan, Dinesh]

Hi,
 
I am looking to migrate an Informix database to MySQL and trying to
write a simple stored procedure in MySQL 5.0.3.   I referred to few
examples posted and used the statements from them but i get errors while
creating this procedure.  
 
CREATE PROCEDURE sp_test
(
   IN user_id    integer,
   IN seg_id     integer
)
 
BEGIN
 
   declare p_rows int;
   set p_rows = 0;
 
   select count(*)
     into p_rows
     from test
    where user_id = user_id
      and seg_id  = seg_id;
 
   if p_rows = 1 then
      update test
         set visits = visits+1
       where user_id = user_id
         and seg_id  = seg_id;
   else
      INSERT INTO test
      VALUES (user_id,seg_id, 1);
   end if;
 
END
 
ERROR:
ERROR 1064 (42000): You have an error in your SQL syntax; check the
manual that corresponds to your MySQL server version for the right
syntax to use near '' at line 7
ERROR 1193 (HY000): Unknown system variable 'p_rows'
ERROR 1327 (42000): Undeclared variable: p_rows
ERROR 1064 (42000): You have an error in your SQL syntax; check the
manual that corresponds to your MySQL server version for the right
syntax to use near 'if p_rows = 1 then
      update test
         set visits = visits+1
       wher' at line 1
ERROR 1064 (42000): You have an error in your SQL syntax; check the
manual that corresponds to your MySQL server version for the right
syntax to use near 'else
      INSERT INTO test
      VALUES (user_id,seg_id, 1)' at line 1
ERROR 1064 (42000): You have an error in your SQL syntax; check the
manual that corresponds to your MySQL server version for the right
syntax to use near 'end if' at line 1
ERROR 1064 (42000): You have an error in your SQL syntax; check the
manual that corresponds to your MySQL server version for the right
syntax to use near 'END' at line 1
 
Any help would be appreciated.
 
Thanks
 
Dinesh