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Database Management Systems II

Database Management Systems II. Session 5. Objectives. Design database schema Understand elements of RDBMS Understand use of SQL and read simple SQL commands Complete a RDBMS exercise using MS Access. Database Schema Queries, Forms and Reports Introduction to SQL Hands-on exercise.

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Database Management Systems II

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  1. Database Management Systems II Session 5

  2. Objectives • Design database schema • Understand elements of RDBMS • Understand use of SQL and read simple SQL commands • Complete a RDBMS exercise using MS Access

  3. Database Schema Queries, Forms and Reports Introduction to SQL Hands-on exercise Topics

  4. Scenario • Draw an E-R diagram: • Northwind is a wholesaler of delicatessen products. Customers are all over the world and each member of the sales team may deal with any customer. Products is kept in a central warehouse and items are ordered from Suppliers when numbers reach the re-order level. An Order may consist of several different products and may be delivered by any one of three Shippers.

  5. Entity-Relationship Diagram

  6. Table Definition

  7. RDBMS Objects FORMS TABLES QUERIES REPORTS

  8. Forms

  9. Reports

  10. SQL Code SELECT ProductID, ProductName FROM Products WHERE Discontinued = ‘No’ ORDER BY ProductName; - What will the query output look like? - What is this query doing?

  11. Exercise • Honest Pete’s Car Sales is a business that deals in second hand cars. You have been given a table of current stock and a table of sales staff. • Construct a schema with table definitions showing primary keys and indicating how tables should be linked. • Following your design, construct the DBMS in MS Access

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