WebOnline Tutoring Questions & Answers help - Transtutors Web• The structure (i.e. schema) of a database organized according to the ER approach can be represented by a diagrammatic technique called an Entity-Relationship diagram. Notation: - entity type rectangle - relationship type diamond - attribute ellipse m : …

Introduction to Sample Schemas - Oracle Help Center

Webg) Give a list of products bought by a customer having cust_id as 5 h) List the item details which are sold as of today i) Create a view which lists out the bill_no, bill_date, cust_id, item_id, price, qty_sold, amount j) Create a view which lists the daily sales date wise for the last one week 2. Database Schema for a Student Library scenario WebAdrienne Watt. The entity relationship (ER) data model has existed for over 35 years. It is well suited to data modelling for use with databases because it is fairly abstract and is easy to discuss and explain. ER models are readily translated to relations. ER models, also called an ER schema, are represented by ER diagrams. cinema chesham tomorrow

Introduction to Sample Schemas - Oracle Help Center

WebDatabase Schema for a sales system scenario Customer (Cust id : integer, cust_name: string) Item (item_id: integer, item_name: string, price: integer) Sale (bill_no: integer, … WebQuestion: Database Schema for a customer-sale scenario: Customer Cust id, cust_name, address) Item (item id, item_name, price) Sale (bill no, bill_date, cust_id, item_id, qty_sold) Write the following queries in SQL and Relational Algebra: a) Select the detail of a Customer having cust_name = "Mustafiz" b) Select those item names whose … WebOct 20, 2016 · Database Schema for a customer-sale scenario Customer ( Cust id : integer, cust_name: string) Item ( item_id: integer, item_name: string, price: integer) Sale … cinema chesterfield derbyshire