What is a transitive dependency? What is the rule for converting tables in the second normal form to tables in third normal form?

Q: Define second normal form. What types of problems would you find in tables that are not in second…

A: A relation is said to be in 2NF if it is free from partial functional dependency.

Q: Using your knowledge of the college environment, determine the functional dependencies that exist in…

A: Answer is given below .

Q: Using SQL data definition language, write the SQL statements to  change each of the following…

A: i. Query to Remove customer name: ALTER TABLE customer DROP COLUMN customername; Query to add…

Q: Why are some table structures considered to be bad and others good? How do you recognize the…

A: A table defines that data structure organizes information into rows and columns. It can be used to…

Q: Q4.Draw the dependency diagram for the DESPATCH_LIST table above. Identify all dependencies…

A: I have provided the dependency diagram for the DESTPATCH_LIST of the given table.

Q: Functional dependencies that are employed for normalization have what characteristics?

A: The functional dependency is a relationship that exists between two attributes. It typically exists…

Q: Part of the primary key may not determine a non-key field.

A: If any relation/table is in second normal form means it dont have any partial functional…

Q: In this part you will be to map the EER schema design to a relational database schema, and create…

A: Customer (Name, IDNo, Address, Email, Username, Password) IDNo – Primary Key create table Customer…

Q: Follow the normalization process to normalize the above tables (you need not show the steps, but can…

A: Answer: Schema invoice_schema CREATE SCHEMA IF NOT EXISTS invoice_schema DEFAULT CHARACTER SET…

Q: Task 2: 1. Create a table EMPLOYEE with following schema: (Emp_no, E_name, E_address, E_ph_no,…

A: solution Since you have asked multiple question, we will solve the Second question for you with…

Q: A table in third normal form is one which: A Has only one primary key. B Is linked to another table…

A: A table is in 3NF (third normal form) if the table is in 2NF and there is no transitive dependency…

Q: How is a foreign key represented in relationalnotation?

A: Lets see the solution.

Q: Write a detailed contrast between "Relation" & "Relationship" in Dbms

A: Relation refers to a single table in DBMS whereas relationship refers to how two tables are…

Q: When part of the data in a table depends on a field in the table that isn’t the table’s primary key,…

A: Part of the data depending on a field Partial dependency is the fact that the non prime attribute…

Q: Given the invoice table with sample data, Please determine an appropriate Key. Then list…

A: First Normal form(1NF):According to the standard of first ordinary structure, a characteristic…

Q: What does a SQL 3NF dependency diagram look like and how does it work?

A: Definition: Third Normal Form:   It is a database scheme that is mainly used to design the approach…

Q: Q2. Draw as-is dependency diagram and identify types of dependencies. Is this table 3rd normal form?…

A:

Q: 10. print FLOOR(SQRT(5)) statement returns a) 5. b) 2. с) 3. d) 2.23. e) 25. 11. Which one of the…

A: I have given an answer in step 2.

Q: E4.8a Depict full key functional dependencies, partial functional dependencies (if any), and…

A: Given: Depict full key functional dependencies, partial functional dependencies (if any), and…

Q: Implement the above schema with its attributes and relation. • Drop the column PAdress from the…

A: create table syntax:-  create table tableName(colName datatype .....); insert into table syntax:-…

Q: The figure below shows the created tables (DOCTOR, APPOINTMENT and PATIENT). However, after you…

A: It is defined as a computerized data-keeping system. Users of the system are given facilities to…

Q: How does one properly model a many-to-many with history? What are foreign keys used for? What…

A: Foreign keys put the “relational” in “relational database” A foreign key is a column or combination…

Q: ITEM (ITEM ID, DESCRIPTION, ON _ HAND, CATEGORY, LOCATION, PRICE, NUM, INVOICE_ DATE, CUST NAME,…

A: Functional Dependencies in the given table is: ITEM_ID -> DESCRIPTION, ON_HAND, CATEGORY,…

Q: 1. Every Boyce code normal form is in a. First Normal Form b. Second Normal Form c. Third Normal…

A: Question 1 : Ans:  c. Third Normal Form   =>   Boyce–Codd normal form (or BCNF or 3.5NF) is a…

Q: Write a query to display the block number and number of departments in each block and give an alias…

A: The query is as follows

Q: What’s the difference between a key-preserved and a non-key-preserved table?

A: Difference between key-preserved and non-key-preserved tables: The table shows the difference…

Q: A table is in 2NF when the table is in 1NF and what other condition is met? O There are no…

A: Second Normal Form(2NF) in which the normalizing that is having the second step in a database that…

Q: Write a query to display the block number and number of departments in each block and give an alias…

A: - We need to highlight the SQL query for the desired operation of retrieving the department data.

Q: Find one type-2 functional dependency in the grade table Table GRADE Student ID Student Name…

A: Functional DependencyA functional dependence occurs when two attributes have a relationship. Inside…

Q: What exactly is a Parent table?

A: Parent table: When a common field is used to relate the records contained in two or more tables,…

Q: Which of the following statements about JOIN in relational algebra is false? a. inner join only…

A: Option B is false: X join Y is not the same as Y join X

Q: ?Which type of relation is an excellent candidate for improvement to second normal form relation…

A: The suitable answer is (a) Relation with an AutoNumber primary key field.

Q: Convert this table to 1* nomal form. Identify the primary key(s) in the table. Draw as-is dependency…

A: In relational database system , efficient arrangement and redundancy of data is organized through…

Q: Create a relational schema model and relations in SQL with all required constraints. Also attach…

A: Relationship diagram to show the relations between tables and the number of attributes.

Q: What is the definition of a transitive dependency? What is the rule for converting second normal…

A: Before we can discuss transitive dependence, we must first define prime and non-prime…

Q: List the advantages of Table in Database? write short note about NULL value?

A: Question. List the advantages of Table in Database? write short note about NULL value? Answer. Some…

Q: Q2. Draw as-is dependency diagram and identify types of dependencies. Is this table 3rd normal form?…

A:

Q: Using the INVOICE table structure shown in Table P6.3, do the following:TABLE P6.3a. Write the…

A: Note : As per guidelines, we are authorized to answer 3 sub parts of a question when multiple parts…

Q: For the database  Figure, write a query to find the ID of each employee with no manager. Note that…

A: Query using an outer join is as follows, select ID from employee natural left outer join manages…

Q: PLZ help with the following: 1. Populate every relation with “sufficient” representative rows (at…

A: To insert into tables go through the below syntax:-  insert into tableName…

Q: Given the sample records in the CHARTER table shown in Table P6.11, do the following: a. Write…

A: a) The relation schema for the table structure is given below, CHARTER (CHAR_TRIP, CHAR_DATE,…

Q: Q3. Identify the primary key(s) in the table below. Draw as-is dependency diagram and identify types…

A: The table is already normalized into 3NF.  A table is said to be in 3rd Normal form, if it satisfies…

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: 1. Create the following tables with appropriate column and table constraints in your chosen…

A: We need to create our own database. To create our own database as : Create database University;…

SQL Query

Structured Query Language is the full form of SQL. It is one of the standard languages to deal with the relational database. It is used to insert, update, delete, and search the records stored in a RDBMS. The relational databases are created and managed by using SQL.