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Write SQL queries using the SQL SELECT statement.
Select all data from both tables before you perform the following: o Increase all employees' salaries with the selected EEO-1 classification by 10 percent. o Increase all employees' salaries by 5 percent. o Choose an employee from the Employee table and delete that employee.
• Print out the SQL statements and data from both tables to show how data was affected. Be prepared to demonstrate your results in class.
Write SQL statements that do the following:
o Calculate the average salary for all employees. o Calculate the maximum salaries for exempt and non-exempt employees. o Calculate the maximum salary for all employees. o Calculate the minimum salaries for exempt and non-exempt employees. o Calculate the minimum salary for all employees.
Pick one of the different types of SQL statements (data definition language, data manipulation language, or data control language). Describe how that type of statement is use.
All primary keys are underlined. All foreign keys have same name as primary key that they are referencing. Determine the names of all Tracks which are more than 10 minutes (600,000 ms) long.
Using Internet as the research tool for extra information not presented in text, describe why application roles are important part of the security model for databases.
What is the order P of the B+-tree if B+-tree access structure on the key is constructed? What is the number of leaf-level blocks needed if blocks are approximately 69% full (round up for convenience)?
Explain the content of this document in natural language;Design the graph representation of document;
Create a Microsoft Access database. Create the tables, fi elds, data types, and primary key(s) for the database. Create the relationship(s) needed between the tables.
Is software measurement equivalent to software metrics? What makes them different?
Draw an ER diagram for your database scenario. Design a set of 3NF tables for your database scenario.
Design an er schema for keeping track of information about votes taken in the U.S. House of Representatives during the current two year congressional session.
CAR (Serial-No, ModConsider the given relations for database which keeps track of auto sales in car dealership.
Design an updateable database for storing customer and sales data. Explain how to deal with the problems of missing data.
Explain how you will visually represent the data for the sales of the individual stores and for the time period shown. You want to show the change in sales for each store over time for the past three years.
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