-- https://docs.oracle.com/en/database/oracle/oracle-database/23/lnpls/plsql-language-fundamentals.html
DECLARE
  part_number       NUMBER(6);
  part_name         VARCHAR2(20);
  in_stock          BOOLEAN;
  part_price        NUMBER(6,2);
  part_description  VARCHAR2(50);
BEGIN
  NULL;
END;
/