DECLARE
  code CHAR(10);
  status INT := 1;
  count SMALLINT = 0;
  limit INT DEFAULT 100;  
  f UTL_FILE.FILE_TYPE;
BEGIN
  status := 2;
END;
  
DECLARE code CHAR(10);
DECLARE status, status2 INT DEFAULT 1;
DECLARE count SMALLINT, limit INT DEFAULT 100;  

DECLARE dt DATE DEFAULT '2015-05-13';
DECLARE ts TIMESTAMP DEFAULT '2015-05-13 11:10:01';