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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.
Student.txt in the attachment contains the roster of a class. Each student object has the following fields: student id, last name, first name, academic level.Create a RosterClass to store the student database in vector.
Task one will provide a relational database implementation of the sample solution from the first assignment. This should be done using CASE software (the choice will be up to you).
Identify which data components are the entities and attributes, and the relationship between each using an object representation diagram through the use of graphical tools such as Microsoft Visio, or an open source alternative such as Dia.
Write a trigger and two test sql statements. The first statement should succeed and the second statement should fail (i.e., the second statement violates the constraint and your trigger must block it and issue an error message).
Please note that for "Table Employees" due to length of the table description and page size limit, I have broken it into 2 parts for better visibility, please make sure to use all the given attributes from the table.
Write the needed SQL to list all product names (and only product names) from the Products table that fall into the category of "condiments." The list of products should be in ascending order.
Write an SQL statement to change the PetWeight column of the PET table so it does not allow NULLs. Assume the column exists, and that it currently allows NULLs
Understanding the SQL script, creating the database and inserting data and display all product information for products that contain the string ‘saw' in their description.
Turn this SQL query into a relational algebra statement? SELECT Request.reqfor, Ordering.invamt, Ordering.invnbr, Ordering.invdat
Code SQL statements to update view as follows: change spelling of Mark Tobey to Mark Toby. Design new Transaction for Mark Toby. Suppose you have essential transaction, work, and customer data.
Given R = (J,K,L ) and the set F of FDs J -> K and L -> K , show that F does NOT logically
Project management has been a rapidly evolving field since its inception centuries ago. For project managers, doing the next project better than the current one has been a concern of paramount interest since project managers oversaw the building o..
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