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Create a database whose tables are at least in 2NF, showing the dependency diagrams for each table.

A Guide to SQL

9th Edition

ISBN:9781111527273

Author:Philip J. Pratt

Publisher:Philip J. Pratt

Chapter2: Database Design Fundamentals

Section: Chapter Questions

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Transaction Processing

Transaction processing is a computational style generally performed by server computers, which supports interactive applications (apps). Transaction processing is also known as information processing, which divides the work into indivisible and individual operations called transactions. The transaction is a set of tasks; a single task is considered as the minimum processing unit that cannot be divided again.

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Create a database whose tables are at least in 2NF, showing the dependency diagrams for each table.

Organized collection of structured information, or data, typically stored in a computer system.

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plz help with the following: Create a database whose tables are at least in 3NF, showing the dependency diagrams for each table.
A database table is in 3rd normal form if A It is in 2nd normal form (2NF) and in 1" normal form(INF) B It is in 2NF and all non-key fields depend on all key fields C t is in 2NF and all non-key fields depend only on the key D It is in 2NF and all non-key fields may depend indirectly on all key fields.
Consider the following database scheme Employee (SSN, fname, lname, salary, deptno) Department (deptno, dname, total_salary) Where total salary is a derived attribute that represents the total salary of employees working in a specific department. Write a trigger to compute the total_salary in the event of inserting one or more new employee record(s) in the employee table.
Implement a new independent entity phone in the Sakila database. Attributes and relationships are shown in the following diagram: The diagram uses Sakila naming conventions. Follow the Sakila conventions for your table and column names: All lower case Underscore separator between root and suffix Foreign keys have the same name as referenced primary key Write CREATE TABLE and ALTER TABLE statements that: Implement the entity as a new phone table. Implement the has relationships as foreign keys in the Sakila customer, staff, and store tables. Remove the existing phone column from the Sakila address table. Step 2 requires adding a foreign key constraint to an existing table. Ex: ALTER TABLE customer ADD FOREIGN KEY (phone_id) REFERENCES phone(phone_id) ON DELETE SET NULL ON UPDATE CASCADE; Specify data types as follows: phone_id, phone_number, and country_code have data type INT. phone_type has date type VARCHAR(12) and contains strings like 'Home', 'Mobile', and 'Other'. Apply…
Below given relations of a database are in First Normal Form (1* NF). Decompose (Split) the relations to Normalize in 2NF and 3NF. tbl_Project Project Code Project Name Project Manager Budget PC010 Reservation System Mr. Said HR System Attendance System Mr. Rajesh 25000 PC011 MS. Malak 32000 PC012 19000 tbl_Emp_Dept Project Code Emp No Emp Name Dept No Dept Name Hourly Pay PC010 S100 Ali Mohd. D03 Database 7.500 PC010 S101 Hamood D02 Testing 5.500 PC010 S102 Riyaz D01 IT 8.200 PC011 S103 Pavan D03 Database 6.500 PC011 S104 Basma D02 Testing 5.400 PC011 S115 Asaad D01 IT 7.900 PC012 S137 Fathima D03 Database 6.200 PC012 S218 Avinash D02 Testing 6.100 PC012 S109 Роja D01 IT 9.300
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