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Using the data model shown below write SQL statements as specified below.
Some questions may require more than one SQL statement to get the full answer. You may make up whatever data values you like to complete the assignments.
SQL Exercises
1. Where are transactions being made? Write SQL statement(s) that will create a new table to track the branches where transactions are performed. Store data about the name, location, and phone number of each branch. Be sure to also modify whatever table is necessary to connect this new table to the existing data.
2. What happens when a new account is opened? Write SQL statement(s) to add data to the tables for a new account. (Go ahead, give yourself a million dollars!)
3. How much money do I have? Write SQL statement(s) to retrieve the current balance for all of your accounts.
4. What happens when an account is closed? Write SQL statement(s) to delete all the data associated with a single account. Extra Credit: Why is deleting these records a bad idea and what can be done differently to close an account?
Create a database model and Submit the table creation statements for the Database Model.
Write PL/SQL procedures and functions to populate and query that database
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.
Run the lab_03_01.sql script in the attached file to create the SAL_HISTORY table. Display the structure of the SAL_HISTORY 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.
Write down a SQL insert statement to insert new row in "CDS" table.
Write down actors (or actress, your choice, but not both) who have won at least two (2) Academy Awards for best actor/actress. Provide the actor name, movie title & year. Order the result by actor name."
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?
Given the series RLC resonant circuit in the figure, operating at variable frequency, determine: The resonant frequency ω o , The circuit’s quality factor Q , The cut-off frequencies, f 1 & f 2 and the bandwidth BW
Write summary query which uses CUBE operator to return LineItemSum (which is the sum of InvoiceLineItemAmount) group by Account(an alias for AccountDesciption).
As DBA, your manager called a meeting and asked why there are so many orders for customers that don't exist in the customer table. Write query which would shows which customers were missing for existing orders. Use a join or a subquery.
Turn this SQL query into a relational algebra statement? SELECT Request.reqfor, Ordering.invamt, Ordering.invnbr, Ordering.invdat
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