單選或多選: a. {a, c, h, i, k} is a subset of V(G2) b. {d, f, b, c, h, g} is a subset of V(G2) c. G2 is a connected graph Od. In_Degree of g is 4 Oe. c is adjacency to g Of. h is adjacency from b Og. Out Degree of d is 3

Q: Display employees where the first name or last name starts with S. using sql plus hr user

A: To select data from a database,  SELECT statement are used. The data is saved in a result table…

Q: List the job title and maximum salary which the salaries are between $10,000 and $20,000. Use…

A: The objective of the question is to retrieve the job title and maximum salary from a database where…

Q: In how many ways can a 16-person club select a president, vice-president, and secretary from among…

A: There are 16 people to choose.in that 3 distinct persons to be selected.

Q: The HR department needs a report to display employee information as shown from the job_history…

A: SOLUTION- With using DATEDIFF - Below is the SQL query that you could use to generate the report:…

Q: Rank Normal forms where each form is a subset of the form above it. [ Select) [Select First Normal…

A: We are going to arrange Normal forms in the database.

Q: You are given the following data tables: Employees(Employeel D, LastName, FirstName, BirthDate,…

A: In this question, we have been given the data tables and we have to write a query where to find all…

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: Which clause of a SQL Select statement is required if we want to display aggregate data by category…

A: Answer: 5) GROUP BY

Q: Please provide an example that works for all 3 sub-questions

A: Given functional dependencies are, If A -> B then B -> A If AB -> C and A-> C, then…

Q: CARD_NO PLAYER_NO TEAM_CODE PRICE 44 BR 4.45 27 BR 3.5 54 BR vers cards

A: query SELECT team_code,COUNT(card_no) AS TOTAL_CARD_NO, to_char(SUM(price),'$99.99') as total_price…

Q: We want to select all employees from a table named EMPLOYEE for employees whose last name is not…

A: SELECT * FROM employee WHERE Last_Name <>  'Adam' ;

Q: 7. List all customers who were referred to the bookstore by another customer. List each customer’s…

A: The answer to the question is given below:

Q: Determine which categories are covered by the existing book stock. There should only be one listing…

A: A trader's book contains a record of all of the positions that they have taken. The entire number of…

Q: Determine which types of books are currently available in the current inventory. Each category…

A: Real-world examples can make inventory models easier to understand. The following examples…

Q: For each customer, list the CustomerID and the total number of orders placed in 2015.

A: Answer: Query: select Order_T.Customer ID,sum(OrderLine_T.Ordered Quant from OrderLine_T inner join…

Q: C) Which employees earn less salary than the average salary for the consultants who perform the same…

A: According to the information given:- We have to consider the instruction to write queries on the…

Q: ery: List the IDs of the tutors who are currently tutoring more t

A: From the question, we need to write a Query of the list of the IDs of the tutors. SQL that would…

Q: Item Number (Item Name) In this case, the date of supply is 04 VENDOR Vendor supply chain Authors'…

A: Attribute (Simple): Simple qualities are ones that cannot be further subdivided. For example, in the…

Q: Below are some rows of the PROVIDERS table for a factory:   PCODE NAME PHONE 10192 Hans, Inc.…

A: In this casе,  wе arе working with a "PROVIDERS" tablе for a factory,  and thе goal is to rеtriеvе…

Q: List the employee’s first and last name and the department name he/she does NOT belong topurchasing,…

A: The objective of the question is to retrieve the first and last names of employees who do not belong…

Q: Which clause of a SQL Select statement is required if we want to display aggregate data by category…

A: Solution :  The GROUP BY statement groups rows that have the same values into summary rows, like…

Q: IN SQL If you omitted the WHERE clause of SELECT statement, the query returns an error because the…

A: Answer True explanation because if  the condition is  given with the query then where clause is…

Q: SQL Find the guide last name and guide first name of all guides who can lead a paddling trip

A: To merge the data between the tables: guide, trip guide, and trip tables SQL join method is used. It…

Minimum Spanning Tree

A spanning tree is a sub-graph of a connected, undirected graph. It has all the vertices of a graph with the minimum possible number of edges. If a vertex is skipped, then it will not be a spanning tree. The edges of a spanning tree may or may not have weights.