**Table 1**

```
create table itemType1(
  maincatg varchar(25), 
  subcatg varchar(25), 
  price float(5), 
  primary key(maincatg, subcatg) 
);

```

**Table2**

```
create table itemType2(
     maincatg varchar(25), 
     subcatg varchar(25), 
     price float(5), 
     primary key(maincatg, subcatg) 
);

```