1.6) Constraints should be used to force valid data entry / modification to the database True  False  1.7) A primary key can contain only single row with null value since duplicate values are not allowed True  False  1.8) Comparison with null can be meaningfully done with equals and not equals operator True  False 

Q: A major goal of normalization is minimizing redundant data a O clarifying field names b O selecting…

A: Lets see the solution.

Q: Consider the database whose database state shown in appendix and answer the following questions:…

A: (A) Retrieve the name of all employees who work in the “Research” Department Select E.Fname,…

Q: What are the differences between the two types of integrity constraints?

A: Integrity Constraints: Integrity Constraints are the rules that all data columns in a table must…

Q: The Developers team also wants you to ensure that emails are converted to lowercase after an update…

A: A collected information or structured data in the form of table that are stored electronically which…

Q: Computer Science Need sql query for all these operations create a database in sql add tables in…

A: The SQL data manipulation language (DML) is used to address and change database data.

Q: 4. Use an appropriate database application to design a database for a school record. Name it…

A:

Q: Which of the following statement is CORRECT about normalisation? 1.A database that is not in at…

A: Actually, the answer has given below:

Q: Consider the following schema for a company database and answer the following questions: DEPARTMENT…

A: The  question did not say which DBMS platform has to be used.So MS SQL Server has been used to…

Q: 1. In a database, there are values a data element can take, and there are values it cannot take. In…

A: Actually, database is a used to stores the data.

Q: Write the code in C++ and provide a link for CPP File

A: Here I have written the full C++ code for an Employee Management System using a linked list. All the…

Q: 1.In a database, there are values a data element can take, and there are values it cannot take. In…

A: As decided by the database administrator or developer, it is necessary for data to conform to a…

Q: 381. File operation used to access attributes of a file is known to be a. get attribute b. set…

A: a) get attribute

Q: 4) a. Load a database application b. Create a database labelled as MOVIE_LIBRARY in the created…

A: In questions with multiple subparts, we are needed to solve only first 3.

Q: Write a script to create a procedure for a library database, the procedure is to add new books and…

A: Given that Write a script to create a procedure for a library database, theprocedure is to add new…

Q: In a database, there are values a data element can take, and there are values it cannot take. In…

A: The answers are given in below sections  for each with explanation .

Q: 2. Next, the script creates the smallest number of indexes such that processing of each one of the…

A: SEE SOLUTION IN STEP 2

Q: CSC 472 Introduction to Database Systems Project Please provide answer to second question; first…

A: So here we have to provide solution of part (2) as mentioned in question  Which is given below

Q: Study: This case study considers the Credit approval dataset. This file concerns credit card…

A: It is defined as an algorithm used to supervise ML algorithm which can be used for both…

Q: 104. The state in which the database does not follow integrity constraints is classified as a.…

A: Here is the solution which is  mentioned below:

Q: 107. On a relational database, the kind of constraint which must be specified and does not contain…

A: please see the next step for solution

Q: For each item below, specify whether the statement is true (T) or false (F). A Database Schema keeps…

A: A database schema keeps the data in a database- True Each data model is based on a Database…

Q: "What exactly is the idea of integrity constraints

A: Introduction: Integrity constraints are the rules that a table's data columns must obey. These are…

Q: An attribute can be atomic, composite, or multivalued True  False 

A: Solution : The answer is True

Q: 37. An update log record describes a ________ database write a. Single b. Double c. Triple d.…

A: Here is the solution which is mentioned below:

Q: Create a ANIMAL SHELTER ADOPTION MANAGEMENT SYSTEM IN C++  Log in as: Admin User  Functions of…

A: Answer: C++ Source Code: #include <iostream> using namespace std; struct animal_admin{    int…

Q: You are required to propose FOUR functions to develop a complete student record management system.…

A: C++ program to inter ,delete and update student data. Student data management system .

Q: 378. Operation to change a user settable attributes of a file, is named to be a. declare attribute…

A: GIVEN: 378. The operation to change user-settable attributes of a file is named to be a.…

Q: 46. The log is a sequence of _________ recording all the update activities in the database. a. Log…

A: Here is the solution which is mentioned below:

Q: 2) A database has four transactions. Let min sup = 60% and min.conf = 80%. %3D TID items_bought (in…

A:

Q: 1. Display all customers whose email is null or ends with 'fiu.edu’ 2. Display the number of orders…

A: Use LIKE to match the ending of email USE IS NULL to check whether value is null or not   SELECT *…

Q: For on ordered file based on key attribute, the following index can be created: O Clustering. O…

A: - We need to choose the correct option for the index to be choosen. - We need to choose correct for…

Q: 1. Create the table with the following specification shown below: Database name: Oasis. Table name :…

A: We are using mysql for this. Create database as shown below: mysql> create database BB;Query OK,…

Q: Complete the Python program to create a Horse table, insert one row, and display the row. The main…

A: Here is the solution with an output:-

Q: What is the distinction between the two kinds of integrity constraints?

A: Intro Integrity constraints In DBMS (DataBase Management System), integrity constraints can be…

Q: Define an index and view. Create each as an example

A: SQL technique: views and indexes A view is simply any SELECT query that has been given a name and…

Q: Create crime database ERD using the FOLLOWING ENTITIES ● Criminal • Victim Officer .

A: An Entity Relationship (ER) Diagram is a kind of flowchart that delineates how "elements, for…

Q: Triggers were previously used for some activities that now have better solutions. Match the…

A: Triggers in database are the sequence of code which executes automatically when an event occurs.…

Q: 86. Using ODL, you can define which of the following? a. Attribute b. Structure c. Operation d. All…

A: Here is the solution which is mentioned below:

Q: You are required to propose FOUR functions to develop a complete student record management system.…

A: //FileName: Student.cpp//This program illustrates attributes of class Student using simple data…

Q: Select from below ALL statements that are true. Select one or more: a. Adding locking and…

A: Answer and explanation is provided in the following steps.

Q: In a database, the foreign key field is used to. Select one: a. identify duplicated data b. create a…

A: The foreign key field is  "Foreign key is a primary key of one table which is an attribute in the…

Q: Update anomalies are known as insertion anomalies, deletion anomalies, and modification anomalies…

A: There are three types of anomalies: update, deletion and insertion anomalies.   Update anomalies are…

Q: Provide two drawbacks for each of the following techniques for storing a relational database:…

A: To be determine: Provide two drawbacks for each of the following techniques for storing a relational…

Q: (a) It creates the table T1 in which any delete operation on either T1 or T2 violating the…

A: ON DELETE SET DEFAULT , fills default values in the foreign key columns of the child tables when the…

Q: 22. Before any changes to database structure are attempted one should first: a. clearly understand…

A: please see the next step for solution

Q: Fill in the blank with the appropriate word from the options given. A referential integrity…

A: Given:

Q: Create a database and data using Python's dbm module key / value pairs that do not require and…

A: "Give Me an Order of Persistence, but Hold the Pickles"        Python in the system programming,…

Intermediate SQL Concepts

A query is a request for data or information from one or more database tables. This information could be presented in the form of pictorials, graphs, or complicated findings which helps in easy interpretation. Structured Query Language (SQL) is the most widely used programming language for retrieving and organizing data from relational databases. Collection of tables with rows and columns is referred to as a database. SQL is the language of databases. It makes it easier to extract specific data from databases, which can then be used for analysis.