Based on the above Relations/Tables, write description of violations of each of the 3-constrains in the table given below:

Q: Convert the table above to a relation in first normal form. Illustrate the relation with the sample…

A: A database is in first normal form (1NF) if the domain of each attribute contains only atomic…

Q: Considering Vaccination Database, write queries to: Display the Subject CNIC, Name, Contact, Dose1…

A: The subjects who have been vaccinated different types in Dose1 and Dose2. For instance, subjects who…

Q: Write only the relational schema for 1st and 2nd Normal Forms based on the following records.…

A: First Normal Form (1NF) : Given table is not in the first normal form. Below is the table in the…

Q: For each of the relations created, indicate its normal form. If the relation is not in the 3NF,…

A: Normalization divides the table into smaller tables, removes any anomalies and links them using…

Q: Note that primary keys are in BOLD. Note also that attributes with the same name in different tables…

A: Here have to determine about SQL statement of given problem statement.

Q: Explain how referential integrity is represented in relational model?

A: Referential integrity means the values of a column in one table is referred by another column in…

Q: The number of relations which are either symmetric- or antisymmetric with 4 elements are

A: Introduction :Given ,4 elements we have to find the number of relations which are either symmetric…

Q: Assume we have two relations R(A, B) and S(B, C). Assume that R = {(1, 2),(2, 3),(3, 4)}, and S =…

A: Answer:-

Q: Explain references the primary key in the same relation?

A: The primary key constraint is that each row in the relational database management system table is…

Q: Implement a new independent entity phone in the Sakila database. Attributes and relationships are…

A: All lower case Underscore separator between root and suffix Foreign keys have the same name as…

Q: Implement a new independent entity phone in the Sakila database. Attributes and relationships are…

A: There is only one error in the above code and that is the ALTER TABLE command on the address table.…

Q: Explain how referential integrity is represented in relational model?

A: Referential integrity states that relationships between tables should be consistent. Referential…

Q: PLZ help with the following: Translate your ER diagram into a relational schema in the form of SQL…

A: E-R diagram is given with different attributes. From this we will create tables

Q: Implement a new independent entity phone in the Sakila database. Attributes and relationships are…

A: SQL: Database management is done using a programming language called SQL, or Structured Query…

Q: Explain the relationship between EXISTS and correlated subqueries.

A: Given: Explain the relationship between EXISTS and correlated subqueries.

Q: Consider the Movie Stars database that contains the following relations: StarsIn(movieTitle,…

A: PART I : Database and Table creation This demonstration is using SQL Server 2014 for database and…

Q: The foreign key in the table adult is called a foreign key.

A: Referential Foreign Key

Q: which rules apply to desigining table with less redundancy? a) Binary Relationship b) Reflective…

A: The objective of the question is to identify the rules that apply to designing a database table with…

Q: Please help with this SQL assignment: Use simple example of an EXCEPT expression. No correlated…

A: Except meaning in general is  A={4,5,7,8} B={7,8} A except B= {4,5} Set of values which are not in B…

Q: 5.6 LAB - Implement independent entity (Sakila) Implement a new independent entity phone in the…

A: First check whether phone_id column exists in your customer, staff, and store table or not. If…

Q: Simplify the following query (WHERE clause), expressed in SQL, on the example database above: SELECT…

A: This query achieves the same result as the original query but is simplified by using INNER JOINs to…

Q: Convert this table to a relation in first normal form by entering appropriate data in the table.…

A: According to the first normal form, the relation should only contain atomic values and should not…

Q: Convert the following table to third normal form (3NF). In this table, StudentNum determines…

A: Normalization can be defined in such a way that it is the system of organizing statistics in a…

Q: Part B Create the entities, subtypes, and relationships according to the business rule below. Then…

A: Actually, an entity relationship (ER) diagram is a graphical representation a database that…

Q: exp_date name (med id (caliber sex age purpose disease USER buys medicine N M price N N name IS A…

A: Normalization means dividing the large table into small tables in order to reduce the redundancy of…

Q: Consider the Library database given below. Write the following queries in SQL, assuming that the…

A: IF (OBJECT_ID('tempdb..#member') IS NOT NULL) DROP TABLE #member CREATE TABLE #member…

Q: Regno Name DOB Phone Gender CID CName | Ins ID Ins_Name| Ins Office 14M01 Kumar 12-Jan-1996 12345 M…

A: Answer:-

Q: convert this EERD to relation.

A: Given Entity Relationship diagram contains four entities that are Publisher, Book, Author and…

Q: Lz help with the following: Translate your ER diagram into a relational schema in the form of SQL…

A: The given diagram is an Entity Relationship diagram inChenn's notation where the entities,…

Q: Indicate dependences and their type.

A: There are two data dependencies: on $6 between the SW and the add, and on $1 between the SWand lw.

Q: Develop a set of relations in third normal form. Include a new column with the heading Violation in…

A: For converting a relation to 2NF  all the partial dependencies are eliminated:- Relation Student:-…

Q: Closely examine the following tables and use it to answer the questions that follow: department…

A: Closely examine the following tables and use it to answer the questions that follow: department…

Q: Write at least 3 functional dependency from the table

A: Answer: first, we understand what is functional dependency? Functional Dependency (FD) is a…

Q: In SQL, foreign key constraints can reference only the primary key attributes ofthe referenced…

A: Let the relation R be many-to-one from entity A to entity B with a and b as their respective primary…

Normalization

Normalization is the process of eliminating redundancy in a database by organizing the data into several smaller tables. The large tables are normalized (converted) into smaller tables by using normalization rules, so that a database administrator can easily handle them. It also eliminates insertion, deletion, and update anomalies.