1. Sample queries Practice in using Oracle SQL (1 of 2)

2. Writing Basic SQL Statements Display a list of all attributes of all stock items. Restricting and Sorting Data –Change the previous select statement, using SQL*PLUS, to: Display only the items supplied by supplier_id 501 Display only the stock code, stock description and unit price Display all stock items, sorted by supplier_id and stock_description.

3. Single-Row functions Display the day and date (dd-mmm-yy – like 10-Feb-06) of all customer orders. For the delivered date for supplier order number 701, write the equivalent of:- OrderNo Delivered on a at 701 20-Sep-2005 Tuesday 12:05pm Then:

4. Other single-row functions List all suppliers who have ‘uppl’ in their names. List characters 4-6 of the names of all suppliers who don’t have ‘uppl’ in their names. For every supplier order that has not yet been delivered, display the latest date by which it is expected (i.e. 10 days after the ordereddate) as follows: Expecting delivery... ---------------------------------------------------------- ---------------------- Order number 501 should be delivered by 13-SEP-05 as it was ordered on 03-SEP-05 Order number 708 should be delivered by 13-SEP-05 as it was ordered on 03-SEP-05

5. Displaying Data from Multiple tables List the stock code, description and supplier name of all stock items. List the names of all customers and the names of suppliers whose stock they have ordered. As above, but ordered by supplier name. List all the name of each staff member and the name of the staff member to which they report (see new Builder Schema model)

6. … Show the difference between the following: –List the names of all customers and the names of suppliers whose stock they have never ordered And –List the names of all customers and the names of suppliers who did not supply each of the stock items they have ordered.

7. Aggregating Data using Group Functions Display the value (unitprice * quantityinstock) of each stock item, giving a sub-total for each supplier and an overall total of stock value.

8. Subqueries Display the names of all customers who have spent more than €5,000. Display the names of suppliers from whom no orders were requested. –Using a sub-query –Using an Oracle-type join.