EMP: NUMBER (4) EMPNO VARCHAR2 (10) ΕΝΑΜΕ VARCHAR2 (9) JOB NUMBER (4) MGR HIREDATE DATE NUMBER (7, 2) SAL NUMBER (7, 2) СOMM NUMBER (2) DE PTNΟ DEPT: NUMBER (2) DE PTNΟ VARCHAR2 (14) DNAME VARCHAR2 (13) LOC

Q: Using the Bowlers and Bowler_Scores tables, list the BowlerID, bowler name, and raw score for each…

A: The given problem requires us to find the BowlerID, bowler name, and raw score for each bowler who…

Q: During the month of January, an employer incurred the following payroll taxes: FICA Social Security…

A: Debit Payroll Tax Expense: $819 Credit FICA Social Security Taxes Payable: $372 Credit FICA…

Q: Update the emp table to set the commission of all employees to SR 1000 who are working as managers

A: Syntax: UPDATE table_nameSET column1 = value1, column2 = value2, ...WHERE condition;

Q: List the last name and first name of every owner not located in Lewiston

A: given, owner table content all required fields that we want last name, first name, city.

Q: Find the numbers that has not been used as DEPTNO in the DEPT table.

A: you can use this query

Q: Task 3: For every service request for janitorial work, list the property ID, management office…

A: This question is from the subject SQL. here we have to deal with query where we have to use select…

Q: Write SQL statement that retrieve the department_name that has the maximum number of employees:…

A: The given is the requirement to find the department_name from depart table for the department that…

Q: Using R calculate the total income for each of the bedroom types from the chart. Sort the output…

A: Here is the total income for each of the bedroom types & the Output from High to low income…

Q: Show the employee dataframe after sorting by year join in descending order and by salary in…

A: Using R show the employee dataframe after sorting by year join in descending order and by salary in…

Q: Find the staff name who has the minimum salary Find the staff name who has the maximum salary for…

A: Find the staff name who has the minimum salary:SELECT fName, lNameFROM StaffWHERE salary = (SELECT…

Q: Given the following Staff2 table, please write a SQL statement to find the superno who supervised 4…

A: To find the superno where COUNT(superno) is greater than or equal to 4.

Q: Convert the following ER model to Relational Model. VIN Engine type age Name ID color DoB make model…

A: Converting the ER Model to Relational Model: 1. Understand the Entities in the ER Model: The first…

Q: Show students’ first name and last name, the course numbers the student took (don’t include…

A: Data is coming from 3 tables . So apply inner join on 3 tables with joining condition.  student…

Q: all the related employee attributes for those employees whose salary is above 5000

A: all the related employee attributes for those employees whose salary is above 5000

Q: Create 3nF relations for the table.

A: The key for the given relation is  (DepartmentNumber, customer number) The functional dependency…

Q: Use the given data to classify the record below using the​ k-NN algorithm for k=1 to 5.   Loan…

A: Based on the information you provided, we can classify the record with the given loan purpose,…

Q: List the complete location table (all rows and all columns).

A: Query select * from Location, Explanation:   select clause is used to retrieve data from specified…

Q: Your university runs many hundreds of courses each semester and needs to keep track of key…

A: the code is given below:-

Q: Find the first five employees hired by the company using mongoDB

A: The query to find first five employee hired: First we'll sort the list using hiring date:…

Enhanced ER Model

The enhanced ER model is an abbreviation for Enhanced Entity-Relationship (EER) model. As you know, the entity-relationship (ER) model is a pictorial illustration of the relationship between various entities of a domain. In the case of a large amount of data with multiple interrelated entities, the ER diagrams become complex and tough to interpret. For such cases, the need for enhancement in the ER model was observed, and thus, the EER model was designed.