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Can anyone help me with this database question? I need the ER diagram for it and the DDL/DML statements to create tables/constraints and to insert or update data in the tables. Thank you for you consideration :) Using DDL, DML to create tables and constraints and any objects required. Also use DML to insert and update, etc. Create set of constraints in your database design We need to create database for supermarket. In supermarket there are set of items, each item has id, name, price, quantity, production date and expired date. Sometime there is discount for each time, and the discount is not fixed, may be change from day to another day. There are a lot of suppliers that supply the items to supermarket each supplier has ID, Name, Address, Phone. Also there are set of customers, each customer has unique ID, name, phone.Customer buys set of items and then the cashier generate invoice for customer, the invoice included the amount of tax which it is 16% now and may be changed in future. Each invoice has sequence number (i.e. auto-number started from 1) The owner can generate report for sales for each cashier, and amount of tax for period to transfer the money to tax office. Using DDL to create the tables, constraints and triggers

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