Q. Consider the following emp relation and rename it with your name:                                         EMP_NO EMP_NAME EMP_GRADE EMP_SAL DEPTNO START_DATE Insert Some data in above table: apply truncate and drop command on the table to show the difference between both commands. Drop constraint from emp_no and consider deptno as primary key

Q: Which of the following Statements stands true for Full outer-join? Select one: a. It pads tuples…

A: Option- The tuples are taken from the right relation and compare with the left relation but not this…

Q: Q. Consider the following relations:  EMP_NO EMP_NAME EMP_GRADE  JOB_ID DEPTNO START_DATE EMP…

A: Since multiple questions are asked,solving 1,2,3 repost remaining. 1. SELECT EMP_NAME||', '||JOB_ID…

Q: Consider the following relation: Customer (CID, name, email, address) Now write Mysql query to…

A: CREATE TRIGGER trg_EMAIL ON EMAIL_CHANGE AFTER INSERT, UPDATE AS IF ( UPDATE (cid, oldemail,…

Q: SQL allows a foreign-key dependency to refer to the same relation, as in the following example:…

A: Answer:-

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

A: The given are the tables created in SQL database where details of Book, Client, Author are stored.…

Q: Display the Employee name and designation in one column. Display all records from table whose name…

A: As per our guidelines we are supposed to answer only 1st three parts. Kindly repost the remaining…

Q: We have the following tables which creates statement are 1. create table supplier(S_NO int…

A: Given:- We have the following tables which creates statement are1. create table supplier(S_NO int…

Q: Using this unnormalized table and the five functional dependencies and third normal forms. In other…

A: To find the normal forms for the given functional dependencies, we need to check each normal form…

Q: Q1. Please write SQL codes to create below reservation database table based on the previous slide…

A: CREATE TABLE RESERVATION (     reserve_date DATE,     member_ID int(4) NOT NULL,     title_ID int(3)…

Q: Create a new table named PRODUCT. The product table will have two attributes;  product ID as…

A: The not null specification means that the values cannot be empty for that field. So, the Allow Nulls…

Q: Create relational schemas for the ER diagram given below. Indicate clearly the primary and foreign…

A: There will be two relational schema for above ER diagram : 1) Course(Code,Name) It has primary keys…

Q: Which of the following is true? BCNF and 3NF are same. A relation in BCNF is always in 3NF A…

A: The data stored in a database can face the problem of data redundancy, which is the duplication of…

Q: The Horse table has the following columns: ID - integer, auto increment, primary key…

A: In the sql content to erase all pony brought into the world before Walk 13 2013 I utilized…

Q: The Car Maintenance team also wants to store the actual maintenance operations in the database. The…

A: DELETE CASCADE: - When we constitute a foreign key using this option, it deletes the referencing…

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: Qno 2: Normalize the following Customer-Order Relation up to 3rd Normal Form, but step by step show…

A:

Q: ProductID is the primary key column for the relation below. Which row violates a rule…

A: The primary key can be defined in such a way that it is a unique column that is basically used for…

Q: The following functional dependencies describe a relation that is in 2NF. Customer_ID, Store_ID ->…

A: Definition of 2NF is => There should not be any partial dependency. Partial Dependency means Part…

Q: The first requirement: Using the SQL language, transform the following entity model into tables in…

A:

Q: Please draw an EERD based on following description: A rental car agency classifies the vehicles it…

A: Entity Relationship Diagrams (ER diagrams) are flowcharts that show all of the relationships between…

Q: Using the INVOICE table structure shown in figure below answer the following question. Write the…

A:

Q: In what normal form is the LOTS relation schema in the Figure with respect to the restrictive…

A: The relationship data, if it is in a first NF and all non key depend on primary attribute. Then the…

Q: The value of the candidate key cannot uniquely identify each tuple in a relation. True O False…

A: 1. The Value of the Candidate key is used to Identify the unique tuple in the relation. Your Answer…

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: SQL allows a foreign-key dependency to refer to the same relation, as in the following example:…

A: The given SQL query state that there is given below :

Q: Use the following precision for each row: Attribute Name Attribute Precision CHAR_WAIT_CHG 6,2…

A: QUESTION Modify the CHARTER table to add the attributes.   ANSWER A new column is added to a table…

Q: Create a new table named PRODUCT. The product table will have two attributes;  product ID as…

A: Create a new table named PRODUCT. The PRODUCT table has two attributes: A product ID as an integer…

Q: In SQL Server, DROP TABLE statement deletes only the definition and tuples of a relation. It does…

A: Note ?as per our company guidelines we are supposed to answer ?️only first 3️⃣ sub-parts. Kindly…

Q: The table STUDENT has the attributes STUDENT_ID, NAME, SCHOOL_ID, and ADDR. The table SCHOOL has the…

A: In the realm of relational databases, it's essential to understand how to perform joins between…

Q: 3. a) A relation that does not have a composite primary key still has partial functional dependency.…

A: Answer: Answer -3(a): The correct answer is 1. TRUE Explanation:  Yes, the relation is uniquely…

Q: Assume a user creates a new relation r1 with a foreign key pointing to another relation r2. What…

A: If a user creates a new relation r1 with a foreign key pointing to another relation r2, the user…

Q: Q5. Consider the following relations: hiker(HN,Name), moutain(MN,Height), climbed(HN,MN,Date).…

A: ANSWER:-

Q: Three tables are given Student: studentNO, firstName, lastName, studentProgram Professor:…

A: 1. SELECT last name,studentProgram FROM Student  UNION SELECT professor name, Professor Program FROM…

Q: Please help with the folllowing: Consider the following declaration of a relation schema…

A: QI:  Insert INTO R (B, C) Values (353, 'B');  Screenshot of SQL program for the above insertion…

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: What three situations make it necessary to make a substitute key instead of the main key of a…

A: In relational databases, a key is a unique identifier that helps establish relationships between…

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: Which of the following is not true about a relation? Group of answer choices The cells of a relation…

A: Which of the following is not true about a relation?Group of answer choicesThe cells of a relation…

Q: One row in the PAT_ENC table represents one patient encounter. One row in the ORDER MED table…

A: Answer: Explanation: For the above problem, the table PAT_ENC contains Patient ID as the primary key…

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.