You have a list of all your contacts details that you would like to store in a database. Your goal is that when a record is inserted in contactstable, you also want this record to be stored (inserted) in a backup table. Assume you have the two tables created: CONTACTS andCONTACTS_BACKUP. These two (2) tables have the same records.The CONTACTS table have the following columns: CONTACT_ID (Primary_Key), FIRSTNAME, LASTNAME and MOBILE_NO.CONTACTS_IDFIRSTNAMELASTNAMEMOBILE_NO1100PrincessKim8130238952101HenryPacker8112578913102PetrusJohannes8556987124103LukasShilongo832584691The CONTACTS_BACKUP table have the same columns and records as the CONTACTS table.CONTACTS_IDFIRSTNAMELASTNAMEMOBILE_NO100PrincessKim8130238952101HenryPacker8112578913102PetrusJohannes8556987124103LukasShilongo832584691You now need to keep both tables in sync so that when a record is inserted into the CONTACTS table it should automatically be inserted intoCONTACTS_BACKUP table. Write a SQL statement that will create a trigger on the CONTACTS table.

Hi. Triggers are set of statements that runs when a certain event is triggered. A trigger can be…

Answered: You have a list of all your contacts…

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

See similar textbooks

Similar questions

Given the following tables, there is a university rule preventing a student from enrolling in a new class if there is an unpaid fine. Please write a table-level CHECK constraint to implement the rule. */ create table Course (CourseID int primary key, CourseName varchar(50), InstructorID int, AcademicYear int, Semester smallint); create table Student (StudentID int primary key, LastName varchar (50), FirstName varchar (50), Email varchar(30), PhoneNumber varchar (20)); create table Enrollment (CourseID int references Course(CourseID), StudentID int references Student(StudentID), RegisterDate date, primary key (CourseID, StudentID)); create table Fine (StudentID int references Student(StudentID), IssueDate date, Amount money, PaidDate date primary key (StudentID, IssueDate));
Assume that a database has a table named Stock, with the following columns:Column Name TypeTrading_Symbol nchar(10)Company_Name nchar(25)Num_Shares intPurchase_Price moneySelling_Price moneyWrite a Select statement that returns the Trading_Symbol column only from the rows where Purchase_Price is greater than $25.00.
You will normalize the following data (each user gets different data), and insert the following data items into your database, creating and linking all the foreign keys properly. Encode instructor with a role of 1 and a learner with a role of 0.Xanthe, si106, InstructorCalley, si106, LearnerKirstie, si106, LearnerKorbyn, si106, LearnerSadiqa, si106, LearnerJael, si110, InstructorAbraham, si110, LearnerConstance, si110, LearnerOlivia, si110, LearnerYasmeen, si110, LearnerUzayr, si206, InstructorArmaan, si206, LearnerErika, si206, LearnerNickson, si206, LearnerQainat, si206, Learner
Using the Henry Books database, add the new title from Stephen King to the wrote table: Book code = 3578 Author number = 6 Edition = 1 You will insert 2 snips for this question. What construct did you use to add a row to the wrote table. Insert the snip of the construct used: Insert the snip of the wrote table. Be sure the new row is displayed:
Task 1:The StayWell Property Management team wants a list of all property addresses combined with the name of the owners. You will need to return three columns: the first name as FIRST_NAME, the last name as LAST_NAME, and the property address as ADDRESS of the owners. Task 4:The StayWell maintenance team wants to minimize the number of planned visits to properties. The team wants to learn all the properties that have different planned service dates. You need to return all available data in the SERVICE_REQUEST table, where requests are made for the same property with a different NEXT_SERVICE_DATE. Task 5:The marketing team wants to celebrate the success of StayWell with a party. The team wants a table with the names of all residents and owners combined into single column named PARTICIPANT. You need to combine this information from the tables and send it back to the team. You do not need to create a new table in the database schema. Task 6:The StayWell marketing team wants to send mail…
Help understanding / installing phpmyadmin and if i need wamp server aswell and where to copy and paste this code in order to create a database
The Save Transaction button depicted in the screen attached is used to save relevant data to the sales table and the salesdetails tables from the depicted schema. When this button is clicked it calls the saveTransaction() function that is within the PosDAO class, it passes to this function an ArrayList of salesdetails object, this list contains the data entered into the jTable which is the products and qty being sold.Write the saveTransaction function. You are to loop through the items and get the total sales, next you are to insert the current date and the total sales into the sales table. Reminder that the sales table SalesNumber field is set to AUTO-INCREMENT, hence the reason for only entering the total sales and current date in sales table.
Task 6: The Car Maintenance team considered that the available maintenance tasks should also have the price information in the database. Alter the MAINTENANCE_TYPES table to include a new column named MAINTENANCE_PRICE of type FLOAT. ANSWER IN MYSQL PLEASE
Task B. Import the data shown in pictures into the two tables created.
Task 1: The Finance team wants to calculate a VAT (8%) on the amount of the stay reservations in the database. However, the team wants to calculate the VAT after the discounts are applied on the prices. In addition, it is important to remember if there is no discount/offers, then the value is NULL in the TRAVELS table. Create a procedure called VATCalculator to calculate the VAT amount and return with the corresponding travel ID. In addition, execute the procedure to account for NULL values and send the respective result to the team. The VAT value should be rounded to 2 decimals. Create a procedure to calculate the VAT. 1 Make sure you are using the following format to change the delimiter for the procedure: DELIMITER $$-- statements --END $$DELIMITER ; Test QueryCALL VATCalculator() Expected Results TRAVEL_ID VAT 5001 1.24 5002 1.64 5003 0.99 5004 2.12 5005 0.89 5006 1.05 5007 0.30 5008 1.51 5009 1.08 5010 1.64
For this problem create a (temporary) table called instructor_course_nums. Write a procedure that accepts an instructor ID as input. The procedure calculates the total number of course sections taught by that instructor, and adds a tuple to the temporary table consisting of the instructors ID number, name, and total courses taught - call these attributes: ID, name, and tot_courses. If the instructor already has an entry in the table,then the procedure makes sure the total number of courses taught in the temporary table is up-to-date. You must name your procedure: Written in PostgreSQL
class Database:def __init__(self, db_name):self.db = sqlite3.connect(db_name)self.cursor = self.db.cursor()def create_table(self, table_schema):self.cursor.execute(table_schema)self.db.commit()def insert_data(self, table_name, data):for i in range(len(data)):keys = ", ".join(data.columns)values = ", ".join([f"'{value}'" if pd.isna(value) else str(value) for value in data.iloc[i]])self.cursor.execute(f"INSERT INTO {table_name} ({keys}) VALUES ({values})")self.db.commit()def search_data(self, table_name, year):self.cursor.execute(f"SELECT * FROM {table_name} WHERE year={year}")result = self.cursor.fetchone()if result is not None:return resultelse:return Nonedef delete_data(self, table_name, year):self.cursor.execute(f"DELETE FROM {table_name} WHERE year={year}")self.db.commit()return self.cursor.rowcount > 0 Please rewrite (or convert) the code above with format: def QueryBuilder( Data_Base, Query_Type, Query_Tuple):'''''' Build Query_String'''''' return Query_String

SEE MORE QUESTIONS

Recommended textbooks for you

Computer Networking: A Top-Down Approach (7th Edi…

Computer Engineering

ISBN:

9780133594140

Author:

James Kurose, Keith Ross

Publisher:

PEARSON

Computer Organization and Design MIPS Edition, Fi…

Computer Engineering

ISBN:

9780124077263

Author:

David A. Patterson, John L. Hennessy

Publisher:

Elsevier Science

Network+ Guide to Networks (MindTap Course List)

Computer Engineering

ISBN:

9781337569330

Author:

Jill West, Tamara Dean, Jean Andrews

Publisher:

Cengage Learning

Computer Networking: A Top-Down Approach (7th Edi…

Computer Engineering

ISBN:

9780133594140

Author:

James Kurose, Keith Ross

Publisher:

PEARSON

Computer Organization and Design MIPS Edition, Fi…

Computer Engineering

ISBN:

9780124077263

Author:

David A. Patterson, John L. Hennessy

Publisher:

Elsevier Science

Network+ Guide to Networks (MindTap Course List)

Computer Engineering

ISBN:

9781337569330

Author:

Jill West, Tamara Dean, Jean Andrews

Publisher:

Cengage Learning

Concepts of Database Management

Computer Engineering

ISBN:

9781337093422

Author:

Joy L. Starks, Philip J. Pratt, Mary Z. Last

Publisher:

Cengage Learning

Prelude to Programming

Computer Engineering

ISBN:

9780133750423

Author:

VENIT, Stewart

Publisher:

Pearson Education

Sc Business Data Communications and Networking, T…

Computer Engineering

ISBN:

9781119368830

Author:

FITZGERALD

Publisher:

WILEY

SEE MORE TEXTBOOKS