How to solve ERROR MISSING RIGHT PARENTHESIS ? (ORACLE) [closed] - sql

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CREATE TABLE BILL
(TRANSACTION_ID VARCHAR2(10) NOT NULL ENABLE,
DATE_BILL DATE,
SERVICE_CHARGE NUMBER(10,2) AS (0.10*PRODUCT_PRICE*PRODUCT_QUANTITY) REFERENCES PRODUCT(PRODUCT_PRICE) AND PRODUCT(PRODUCT_QUANTITY),
TRANSACTION_AMOUNT NUMBER(10,2) AS ((PRODUCT_PRICE*PRODUCT_QUANTITY) + (0.10*PRODUCT_PRICE*PRODUCT_QUANTITY)) REFERENCES PRODUCT(PRODUCT_PRICE) AND PRODUCT(PRODUCT_QUANTITY),
TRANSACTION_TYPE VARCHAR2(45),
ORDER_ID VARCHAR2(45) REFERENCES ORDERS(ORDER_ID),
CUST_ID VARCHAR2(45) NOT NULL ENABLE,
PRIMARY KEY (TRANSACTION_ID)
USING INDEX ENABLE
);

Answer 1

Apart from the fact that syntax you "invented" doesn't even exist, you're trying to create virtual columns (service_charge and transaction_amount) that reference columns from another table(s), most probably product. Well, you can't.
Looks like you'd rather create a view.
Something like this (you didn't post how tables are related to each other so I'm just guessing):
CREATE TABLE bill
(
transaction_id VARCHAR2 (10) PRIMARY KEY,
date_bill DATE,
transaction_type VARCHAR2 (45),
order_id VARCHAR2 (45) REFERENCES orders (order_id),
cust_id VARCHAR2 (45)
);
CREATE OR REPLACE VIEW v_bill_product
AS
SELECT b.transaction_id,
b.date_bill,
b.transaction_type,
b.order_id,
b.cust_id,
--
0.1 * p.product_price * p.product_quantity AS service_charge,
1.1 * p.product_price * product_quantity AS transaction_amount
FROM bill b JOIN product p ON b.transaction_id = p.transaction_id;