a) What integer value can searches return if the given key value is not found? b) What is another value that would be acceptable and explain why it would be an appropriate value to return if a search does not find the given key value?

Q: DBMS increases the integrity of data Select one: True O False

A: Permanent records are kept in a variety of files in a typical file-processing system.  To extract…

Q: SQL Injection is a term that refers to an attack on a SQL database

A: SUMMARY: - Hence, we discussed all the points.

Q: A __________ is a unique column value that can be used to identify a specific row in a table of a…

A: Unique column value for identifying specific row: A primary key is a field in a table that…

Q: 13. Find the name of all patients whose ID ends with '445' 14. Add new medicine to the database 15.…

A: the query to perform the operation is written below. 13.select P_name from Patient where ID='%445';…

Q: A dense index has an index for only some of the search values  True  False

A: Given: A dense index has an index for only some of the search values  True  False

Q: 28. A key: a. must always be composed of two or more columns. b. can only be one column. c.…

A:

Q: What exactly are in-text citations?

A: Introduction: A reduced form of a reference appears in the body of your writing as an in-text…

Q: please send me solution of this complete question subject: DBMS

A: Entities identified are Song Composer, Artist Track CD. Attributes are: Song has Song number,…

Q: An attacker who adds commands to a database query has likely used A. SQL injection B. command…

A: Answer: Right option is SQL injection.

Q: What are nulls? Which field cannot accept null values? Why?

A: NULL is a special keyword in SQL that depicts an empty value. It signify a missing or unknown…

Q: is it true that a foreign key is a column in one table that contains the primary key value of…

A: According to the information given:- We have to verify the mentioned statement is true or not.

Q: Indices can speed up query processing, but it's usually a terrible idea to index every attribute,…

A: Answer is given below .

Q: What are the after triggers ? Select one: a. Both b and c b. These triggers run after an insert,…

A: Answer to the above question is in step2.

Q: Collision is caused due to the presence of two keys having the same value. a) True b) False

A: The given statement is correct. Collision is caused due to the presence of two keys having the same…

Q: How to detach a photo in my question? or How do I delete the question I asked in Bartleby?

A: In addition to typing your question, you can also attach up to two images (such as a photo or…

Q: The use of indices speeds up query processing, although it is usually a terrible idea to establish…

A: Introduction: Indexing in a Database Management System (DBMS): Indexing is a time-saving way of…

Q: Increase the following: DBMS

A: DBMS :- Data Base Management System  It manages incoming data, organizes it, and provides ways for…

Q: Create reports containing the following details from the database: Q1 How many books are there in…

A: SELECT category, count(category) AS "numberOfBooks",FROM booksWHERE category='computer'; The above…

Q: Why can a foreign key have a NULL value but a primary key cannot?

A: INTRODUCTION: The term "foreign key" refers to a database key that connects two tables. The…

Q: What are Situations where default values will improve data integrity and situations where using them…

A: Answer: There are two situation as follows: 1.Situation where data integrity decreases: (a) There…

Q: Hash table

A: Given : -  Hash table size =  10  Sequence is 3, 5, 7, 2, 9, 6, 1, 8, 4 The array index starts from…

Q: 3DES block cipher uses a total key size (

A: the 3DES block cipher key consists of a concatenation of three DES keys, each of which has the size…

Q: Applications are programs that interact directly with the database. PM False O True

A: Please find the answer below step.

Q: Q.4.4 Query all the user profiles where the fitness level of the user is equal to 2.  Q.4.5 Query…

A: Assume that, The name of the table is User profile The attributes of the user profile table are…

Q: What are in text citations?

A: Given: What are in-text citations?

Q: Although Null values are problematic in databases, it cannot be avoided in some cases. Describe how…

A: Actually, the answer has given below:

Q: Update the name of the student to "John Doe" where its id is 10. Enter your answer 5. Modify the…

A: The SQL queries are given below: Note: In the second query I have not added the NULL keyword because…

Q: A primary key does not uniquely identify a record.      Group of answer choices True False

A: Below is the answer with explanation:

Q: Describe the use of null values in a database

A: Introduction: A NULL value is a particular marker used in SQL to indicate that a data value does not…

Q: True or False If a column in a database table contains no data, it is said to be null.

A: Explanation: While designing a table, the null value property for columns can be specified by…

Q: Briefly explain what a foreign key is and what it is used for

A: Given: Briefly explain what a foreign key is and what it is used for

Q: Which forms of locking are supported by JDBC?

A: JDBC stands for Java Database Connectivity which provides the universal data access from the java…

Q: What are some of the several ways that Depth First Search may be used?

A: Institution: Getting Started with the chevalier chevalier chevalier chevalier chevalier chevalier…

Q: What are some of the many applications that may be made use of the Depth First Search method?

A: Given: An Explanation of the Depth-First Search MethodThe depth-first search is an example of an…

Q: An attacker who adds commands to a database query has likely used

A: In this question we will understand about the database injection of queries form the hacker into the…

Q: What is the procedure for entering information about a user into a database?

A: Databases are collections of structured data kept electronically on a computer system that are…

Q: The database should contain the following six tables:

A: Solution:

Q: A foreign key should normally have the same name as the primary key from which it was copied. Group…

A: It is a RDBMS based question.

Q: List minimal cover and identify all possible candidate keys. A → BC IG → B C → DE ED → GJF HD →…

A: Answers:

Q: True or False When working with the data in a database table, the column that is designated as the…

A:

Q: Table; CUSTOMER Cus_ID HOTEL H_ID ROOM R_ID PAYMENT P_ID Cust_addr H_Name R_Type P_desc Cust_pnumber…

A: Given tables are Customer, Hotel, Room and Payment. The attributes of these tables are: Customer:…

Q: The usage of indices speeds up query processing, but it's typically a bad idea to create one for…

A: Introduction: Indexing in a Database Management System (DBMS): Indexing is a time-saving way of…

Q: For each of the following items, determine whether the data type should be aninteger, string, or…

A: integer data type: This data type stores the numeric value of data. It is useful for storing…

Q: When deleting rows, columns, and tables, what is the most important thing to remember?

A: A database is a collection of data that is organized to make it easier to find, update, and…