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Database Systems
In this tutorial, our focus will be on working with SQL statements to perform data selection and updates within the Northwind database.
Task 1
Construct an SQL statement to display a list of city names along with the number of customers in each city, sorted in descending order based on the number of customers.
Task 2 Construct an SQL statement to find the products that have the highest price within their categories. Display the product name, category name, and unit price.
Task 3Construct an SQL statement to find the employee who manages the highest number of territories. Display the employee ID, first name, last name, and the number of territories he/she manages.
Task 4 Construct an SQL statement to update employee Robert Kings title to Dr Construct SQL statements to update the priceof:Perth Pasties to 45 dollars Vegie-spread to 50 dollarsFilo Mix to 8 dollars and 50 cents
Construct an SQL statement to insert a new employee record for Frodo Baggins.
describe the main capabilities of MySQL.
The 3-tuples in a 3-ary relation represent the following attributes of a student database: student ID number, name, phone number.
question 1research the definition of a minimal cover. explain it in your own words and give an example. question
Create naming conventions for each entity and attributes. Conclude your data model design with an Entity Relationship Model (ERM) that will visually represent the relationships between the tables.
Discuss the importance of the database transaction log, and how you would use it in the daily operations of database management.
Making a query to produce all clients for one of the sales that are assigned to multiple clients - Produce a full client list by each sales person.
In the following project, you will revise a table that is to be used as a data source in a mail merge. As the business manager for Sports Medicine Clinic, you will send letters of welcome to three newly hired physical therapists
The Database Design Proposal assignment
Create a query with all fields from the student table, where the student's last name is Smith - Create a query that includes students' first names
Carry out the following tasks below by using the correct SQL statements. Create the statements in Oracle by using the following steps (SQL > SQL commands > Enter Command). Determine the columns that make up the primary key of the l_lunch_items tabl..
Create an application that stores people's names and birthdays in a file (Fig. 23.40). The user creates a file and inputs each person's first name, lastname and birthday on the Form. The information is then written to the file.
As an IT manager, discuss how your company will use Enterprise Resource Planning (ERP) to integrate the various functions of an entity.
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