8. Matrix algebra is a theoretical way of manipulating a database.   9. The union of tables A and B is a table containing all rows that are in either table A or table B or in both table A and table B.   10. The intersection of two tables A and B is the set of all rows that are in table A but that are not in table B.

A lookup table is a type of map True or False

“Martial Arts R Us” (MARU) needs a database. MARU is a martial arts school with hundreds of students. The database must keep track of all the classes that are offered, who is assigned to teach each class, and which students attend each class. Also, it is important to track the progress of each student as they advance. Create a complete Crow’s Foot ERD for these requirements: • Students are given a student number when they join the school. The number is stored along with their name, date of birth, and the date they joined the school. • All instructors are also students, but clearly not all students are instructors. In addition to the normal student information, for all instructors, the date that they start working as an instructor must be recorded along with their instructor status (compensated or volunteer). • An instructor may be assigned to teach any number of classes, but each class has one and only one assigned instructor. Some instructors,…

Discuss the advantages of using a dictionary over other data structures like lists or arrays for certain tasks.

Computer Science Objective: To create a JSON for Population census with objects and arrays   Scenario: def Census Company is maintaining database on the survey taken.   Application sends the details of schemes in the form of JSON Help to create a JSON with the information provided.   Name Datatype of value Country String State String YearOfSurvey Number TotalPopulation String AgeGroup Object   AgeGroup- Object :    Name Datatype of value 0-14 Array 15-24 Array 25-44 Array 45-64 Array Above65 Array Array :    Name Datatype of value male Number female Number You can assume any data for the mentioned JSON structure, provided it is matching the specified datatype

Discussion Topic This week we are learning about Functions, Procedures, and ETL. Reflect on the concepts you have been introduced in the learning activities in the module. Then respond to the prompt(s) below. Topic 1: Briefly explain how you would choose whether to use a user-defined functions (UDFS) or a stored procedure. Topic 2: Briefly describe challenges you may encounter when attempting to integrate data from multiple databases or systems.

Advanced DataBase

write steps of the following question Make a Table of Students Data in an OpenOffice Database and Retrieve the data of students having their names started from “Muhammad”.

WRITE THE CODE OF MYSQL IN PYTHON AND DO THIS FUNCTION PLEASE IN 20 MINUTES JUST THE LAST QUESTION (6) Define a function that reports the total price of the items with respect to their type. For example, the total price of sold paintings is 420000.

92. In relational database schemas, the transition constraints are also known as a. static constraints b. dynamic constraints c. implicit constraints d. explicit constraints