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Pretend that you are on the boards of the American National Standards Institute (ANSI) and the International Organization for Standards (ISO), two of the organizations who standardized SQL. You have been asked to provide input to help improve SQL to maximize its functionality, usability, and interoperability among many platforms. Which features of SQL would you keep? Which would you replace? What new features would you like to add to the language to make it more powerful?
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.
Describe the meaning of the keyword EXISTS. Describe how any and all relate to EXISTS and NOT EXISTS. Write a query which will display names of any customers who are interested in all artists.
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.
Write SQL statement which creates stored procedure with one int input parameter. Stored procedure selects supplierId field and total of all Count field values for each group of supplierId's from Part table.
Law Associates is a large legal practice based in Sydney. You have been asked to design a data model for the practice based upon the following specification
Write a perl subroutine for temperature conversion named 'convert_temp'. It should be able to handle both Fahrenheit to Celsius conversions as well as Celsius to Fahrenheit conversions.
Write a query to display using the employees table the EMPLOYEE_ID, FIRST_NAME, LAST_NAME and HIRE_DATE of every employee who was hired after to 1 January, 1995.
Write an SQL CREATE TABLE statement to create the PET table without referential integrity constraint on OwnerID in PET.
Write the command to list all the employees hired in 2003 and 2004. Sort the rows by the hire_date column in descending order.
Write SELECT statement which returns those rows with the balance due greater than 1000. Sort result set by InvoiceTotal, with largest invoice first.
Write a PL/SQ block - Select the average salary of all employees in department number 20.
Write down SQL needed to create employee table containing the following data: employeeID, text, length of 5, primary key lastName, text, length of 25
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