Q5. Consider the following relations: hiker(HN,Name), moutain(MN,Height), climbed(HN,MN,Date). Provide safe Datalog rules (with negation if necessary) for the following queries. (a) Find the names of hikers who climbed some mountains with Height > 5000m. (b) Find the names of hikers who never climbed mountains with Height > 5000m. (c) Find the names of hikers who climbed every mountain with Height > 5000m.

Q: Display the list of students who are involved in the IT club Display the details of all the…

A: First get the studid from Club table and then get those Student details This can be done using inner…

Q: Employee_Id, First_Name, Last_Name, Email, Phone_Number, Hire_Date, Job_Id, Salary, Commission_Pct,…

A: a. To get the average salary and number of employees working in department 90, we can use the…

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: 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: encies that exist in the following table and then convert this table to an equivalent collection of…

A: A functional dependence is a constraint between two sets of attributes in a relation in a database…

Q: Modify the PILOT table to add the attribute shown in the following table, with a precision and scale…

A: ALTER TABLE command is used to add new Attribute to the table Syntax: ALTER TABLE table_name  ADD…

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: Create a view of the Join of Deposit and Withdraw transactions to Bank Branch UNION with the join of…

A: Based on the given information, the following SQL code can be used to create the requested view: --…

Q: Consider the following relational schema and answer the following questions. Employee (Employee_Id,…

A: - The schema provided is about employees with their data like their name, salary and multiple ids.

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: PROPERTY (PROPERTY _ ID, OFFICE BDRMS, FLOORS, MONTHLY NUM, ADDRESS, SQR _ FT, RENT, OWNER NUM, LAST…

A: The Given Properties Table contains 10 attributes. Consider property_id as the key. The performance…

Q: STUDENT Grade Semester Year Student ID Name Address -Registers for Major Note: Assume Instructor…

A:

Q: Answer part (4) of question 3.37 but use joins using JOIN ON syntax

A: Lets see the solution.

Q: The degree is the number of tuples in a relation. Select one: a. False b. True

A: Relational Database: Table is called as relation or file. Row is called as tuple. Column is called…

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

A: Solution:   2.3)   Treatment table before increment by 2.5 % in costOfTreatment :

Q: Consider the following relational schema and answer the following questions. Employee (Employee_Id,…

A: SQL (Structured Query Language) is used for managing and manipulating relational databases. SQL…

Q: Using the instance of the Airport database, formulate the following queries in the relational…

A: Relational algebra which refers to the a procedural query language. It also which gives a step by…

Q: Given the table PRODUCT(ProductID, ProductName, ProductClass, ProductWeight, ProductStyle,…

A: In the given scenario, we have a table named PRODUCT with attributes like ProductID, ProductName,…

Q: Explain the relationship between EXISTS and correlated subqueries.

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

Q: Consider the following relational schema and answer the following questions. Employee (Employee_Id,…

A: The SQL query is given below for the above given question:

Q: Using the relations in the appendix, write the following queries in  SQL: i. Display a list of all…

A: (i) The required query is: SELECT ID, COUNT(section_id, semester) as 'Count of Sections Taught'FROM…

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

A: Referential Foreign Key

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

A: The objective of the question is to identify the correct SQL query that will create a table showing…

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: The FOREIGN KEY constraint should be added to which table? ( refer to the tables in the JustLee…

A: Foreign key constraint A foreign key is a key to link two tables together. The foreign key…

Q: Given the table PRODUCT(ProductID, ProductName, ProductClass, ProductWeight, ProductStyle,…

A: In the realm of database management, understanding the characteristics and distribution of data is…

Q: 8.    The head of the hospital’s accounting department is concerned about the prescribed charge for…

A: SELECT s.service_id, s.service_charge, t.actual_chargeFROM service sINNER JOIN treatment t ON…

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.