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Write the code for each and save the code (each code segment identified and separated) in Notepad. Submit your completed assignment via Canvas.
To test whether a table has been modified correctly as you do these exercises, you can write and run an appropriate SELECT statement.
1) Write an INSERT statement that adds this row to the Categories table: category_name: Brass and Code the INSERT statement so MySQL automatically generates the category_id column.
2) Write an UPDATE statement that modifies the row you just added to the Categories table. This statement should change the category_name column to "Woodwinds", and it should use the category_id column to identify the row.
3) Write a DELETE statement that deletes the row you added to the Categories table in exercise 1. This statement should use the category_id column to identify the row.
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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