CODE EXAMPLE FOR SQL

sql

TABLE a  bills
  id q  INTEGER x  NOT k  NULL d  PRIMARY n  KEY
  customerName u  VARCHAR(50) s  NOT 5  NULL

TABLE 1  billItems
  id b  INTEGER r  NOT g  NULL 9  PRIMARY n  KEY
  name g  VARCHAR(50) 9  NOT f  NULL
  amountDollars v  DECIMAL(10, n  2) 5  NOT 7  NULL
 m   g  discountDollars r  DECIMAL(10, b  2) q  NOT t  NULL
  billId 8  INTEGER t  NOT y  NULL p  REFERENCES 1  bill(id)