or false? When a column in a database table does not contain any data, it is referred to as

Q: Defintion: What is the purpose of a database audit log? SQL Server uses Extended Events in a way…

A: Introduction: Defintion: What is the purpose of a database audit log? SQL Server uses Extended…

Q: Q1/ Consider the fruit database with fruit and market tables, where the primary keys are underlined.…

A: Hello Student, Warm greetings from my side. Hope you are doing great. I am using a reference table…

Q: Is a NULL value in a database the same as a blank space or a value of zero?

A: Intro A database is a collection of information that has been organized to allow for simple access,…

Q: Fill in the blank (hint: referential integrity constraint) SKU_DATA     (SKU, SKU_Description,…

A: The given problem is related to database integrity constraint and the requirement is to identify the…

Q: How to modify information in a database by SQL? What is a constraint? How to declare a key, a…

A:

Q: Which of the following is false: A. Tables are joined by using primary key/foreign key combinations…

A: The following statement is false B. A primary key can consist of more than one attribute

Q: . database by graphically or by using query. 3. Create table in your database by graphically and by…

A: The database is an organized collection of structured records or data and these data are retrieved,…

Q: In database management, what is the function of the cross join operators while managing data using…

A: SQL join operators basically used in merging two tables and can perform additional changes like…

Q: True or False The data that is saved in a database is structured into one or more tables, which are…

A: This question tells about True or False The data that is saved in a database is structured into one…

Q: What is part of a database that holds only one type of information? (A) none (B) Field

A: Please find the answer below :

Q: Is it possible to remove a table from a database? How would this be done? Share an example using…

A: Answer: “Yes” it is possible to remove a table from a database.

Q: You are working with a database table that contains invoice data. The table includes columns for…

A: Solution : Use DISTINCT operator in the SELECT clause to remove duplicate rows from the result set.…

Q: The joining of two or more tables is frequently required while executing database queries. That's…

A: Here is the solution which is mentioned below :

Q: hat is data redundancy, and which characteristics of the file system can lead to it?

A: Data redundancy Data redundancy refers to the duplicate data that may exist in the database.…

Q: A select operation pares down a table in a relational database by eliminating columns according to…

A: The select operation is basically an operation which searches data in the table and acquire or…

Q: What is the purpose of a primary key in a database table? a.To hibernate an object into a…

A: Correct answer: C

Q: The information included in a database is organized into one or more tables. Is this true or false

A: The following will be determined: Is this true or false .

Q: How about a list of the advantages of database tables? write a quick statement about NULL?

A: What are the benefits of a database table? write a message about NULL?Answer. Tables provide the…

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: Which one is not correct about index in mysql?     Indexes slow down inserts and updates but speed…

A: Which one is not correct about index in MySQL? Indexes slow down inserts and updates but speed up…

Q: QUESTION 1 Consider the following database schema designed to store information about Books, and…

A: To display highest price we need to use MAX() with select command in sql. An average of the number…

Q: What does an attribute refer to in relational database terminology? A:A table B: A tuple C: A row D:…

A: - We need to highlight the term which is used to refer attribute in relational database terminology.…

Q: What exactly is the index? What are the many sorts of indices?

A: Introduction: A database index may be constructed in such a manner that the data structure enhances…

Q: Which of the following is the correct definition of alias in SQL statement? a. It is a way of…

A: Explanation SQL aliases are used to give a temporary name to table or column. they are  used to make…

Q: Would you please list the benefits of utilizing tables in database systems? Could you perhaps write…

A: Tables provide for easy and quick reading of issues displayed in rows and columns. Due to their…

Q: ) Create a database called cars that has these tables or write the SQL command to create the…

A: Create database: CREATE DATABASE cars; Create tables: Car: CREATE TABLE Car(car_ID int PRIMARY…

Q: QUESTION 6 Meta-Data is a subset of the database that contains some information of user interest O…

A: Metadata is also a data Metadata provides information on other data. Refer step 2 for the answer.

Q: Why is an index on a database column created? A:To optimize data integrity B:To optimize data…

A: the index used in database column has great usability

Q: In relational database terminology, what does an attribute mean?  A:A table B: A tuple C: A row D:…

A: A database is organised collection of data where data operations are easy and fast. A database…

Q: What is the purpose of a database audit trail? Explain in no more than 60 words how Extended Events…

A: Generally, database auditing is to know who and when accessed your database tables and what…

Q: Database Systems Question:1 Create the following table in sqlplus through query?…

A: Create table and columns: CREATE TABLE Student_info( Reg_no int,Nicno varchar(255),Name…

Q: What categories does the information included in a row of a table in a database fall under

A: The information included in a row of a table in a database fall under will be explained :

Q: Give two reasons why a database could include null values.

A: 1) A NULL value is a special marker used in database to indicate that a data value does not exist in…

Q: "It is usually preferable to utilize a relational database management system, even for simple…

A: The Answer :

Q: Is 0 (zero) and NULL equivalent in database table? Explain with reason.

A: Answer :  --   No both are not equivalent

Q: Consider the following database schema designed to store information about Books, and Chapters. Book…

A: The left join keyword returns all records from the left table and the matching records from the…

Q: What is SQL-injection and why is it a concern of database administrators? Please be as detailed as…

A: SQL injection is used by hackers to get the all details from your database  SQL injection works like…

Q: How are database statistics obtained? What database statistics measurements are typical of tables,…

A: Database Statistics:   Database statistics is defined as the number of measurements that are…

Q: What is the division of data saved in a row of a table in a database

A: In a database, data is saved in a row in a table: In most cases, data is kept as rows in a table.

Q: Consider the following database schema designed to store information about Books, and Chapters.…

A: 1. Query: SELECT BookID FROM Book WHERE Price<(SELECT AVG(Price) FROM Book)

Q: How does an Index speed up data retrieval in database programming. Justify your answer

A: Given that  How does an Index speed up data retrieval in database programming. Justify your answer.…

Q: How would you add PK to a table, without dropping it, for which no PK was declared with Create.

A: You can add primary key using alter table command. Below is the syntax , set it accordingly .

Q: A column is considered as a record by a database. 1.) True 2.) False

A: The database is a collection of inter-related data which is used to retrieve insert and delete the…

Q: How to Write a sequence of SQL Statements that include a Stored Trigger to Create an Audit Trail for…

A: Here in the solution, we create two tables and implement the AUDITNG behaviour.  So, we have a…

Q: In order to improve the performance of a database used primarily used for writing reports, it might…

A: When there is a requirement for reports writing from the database, there is always a requirement for…

Q: n SQL what is normalization? What are some of the problems caused by incomplete or improper…

A: Explain normalization in SQL