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Assignment 1 > to represent a problem description given in natural language as an (Enhanced) Entity -Relationship model; > to convert the ER/EER model into a relational data model; > to apply Normalization techniques (Bottom-Up approach) on the user-defined forms; > to implement a relational database system (using ORACLE11g).
Write an SQL CREATE TABLE statement to create the PET table without referential integrity constraint on OwnerID in PET.
Write a SQL Statement to create a View called vwEmployeeTerritories that will do the following: Return all Employees and their Territories (use INNER JOIN).
What is an SQL injection attack? Explain how it works, and what precautions must be taken to prevent SQL injection attacks.What are two advantages of encrypting data stored in the database?
Write SELECT statement which returns those rows with the balance due greater than 1000. Sort result set by InvoiceTotal, with largest invoice first.
Write SQL statement which creates user defined function which returns int value. This int return value is obtained by deducting the lowest Count field value from the highest Count field value of Part table.
Write a query to display the last name, department number, and salary of any employee whose department number and salary both match the department number and salary of any employee who earns a commission.
Draw an Entity-Relationship Diagram (ERD) for the data storage requirements of a business described in the case study and Data Model Transformation.
Write a PL/SQ block - Select the average salary of all employees in department number 20.
Explain how you will go about developing this database. Provide at least four queries that answer some of the questions asked by the end users.
Write SQL statement which would select each of the following: names and owners of all Great Danes and all attributes of poodles whose balance is no greater than $50.
Write SQL statement which creates stored procedure with one int input parameter. The stored procedure selects the supplierId field and the total of all Count field values for each group of supplierId's from the Part table.
Write a PL/SQL block that displays the last name and salary of the following people. Each of these can be done separately as PL/SQL, first to test and get the output lines then encapsulated in the procedure.
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