“Supporting a travel agency, TORS maintains tour information and provides reservation facilities for the people who wish to travel on tours via the Internet. The system allows users to view information about the tours available and make a reservation on a tour without asking the employees at the agency. Using the system, a user can cancel an existing reservation that the user made. The system also allows the user to send feedbacks by e-mail to the agency and stores the feedback in the database. Finally, the system allows the employees of the agency to manage customer information and tours such as adding, deleting, and updating information on customers and tours. For security purposes, the employees are required to provide login credentials (ID and password) to access the system.”   1. Considering System Sequence Diagram(SSD) given in the question develop design sequence diagrams (DSD) for each system operation in the SSD.

Q: DBAs at businesses and schools use a lot of different things to keep the production system and the…

A: Explain DBAs at business and schools use a lot of different things to keep the production system…

Q: The database allows for both forward and backward recovery.

A: Introduction: Why healing is necessary If a database instance fails and is restarted, or if a…

Q: Database recovery can be performed in either the forward or the backward direction.

A: Why healing is necessary If a database instance fails and is restarted, or if a surviving instance…

Q: As you operate on databases, you may use triggers or processes. Triggers—when and how?

A: A database trigger is a unique kind of stored procedure that is triggered to execute in response to…

Q: It is possible to restore databases from their backups either forwards or backwards.

A: It is possible to restore databases from their backups either forwards or backwards.

Q: How does the company's database administrator secure personal information when it comes to…

A: Introduction: A database administrator took steps to protect personal information: Database…

Q: Creating a database for a business requires you to go through six basic processes.

A: The following are the six primary stages involved in establishing a database: When a database for an…

Q: Database logs may be used to identify between two separate services. Are they meant to speak for…

A: The answer is given in the below step

Q: Why would a database user want to filter query results

A: Database is a collection of large number of tables which contains huge amount of data in its own…

Q: Could you please explain the main parts of the database?

A: Database: Information is stored and retrieved using a Database Management System (DBMS). Software…

Q: Database management systems (DBMS) enable you to access and store data without worrying about the…

A: To state True or false.

Q: SQL injection is a kind of cyber-attack in which data is injected into a database. Explain how it…

A: We need to explain the working of SQL injection attack and how to prevent it.

Q: Risks abound when moving a database from one server to another.

A: Introduction: Most organisations have kept their servers on-site for data infrastructure.  These…

Q: If you could create a database to make some aspect of your life easier, what type of information…

A: We must evaluate ourselves to design a database for life aspects while designing a database for life…

Q: There is always the chance of anything going wrong when you move databases on a server.

A: Database: A database is a collection of organized and structured data that is stored and accessed…

Q: An attacker can use SQL injection to perform actions on a database that the developer did not…

A: In fact, SQL injection is a serious security flaw with serious ramifications for organisations.…

Q: DB security - Extensive administrative method for database physical control. detail

A:

Q: How does the company's database administrator secure personal information when it comes to…

A: Answer:

Q: Why might a database administrator opt to adjust the "lock timeout" period?

A: A database administrator might opt to adjust the "lock timeout" period to manage concurrency,…

Q: Using default settings may either improve data integrity or harm it, depending on the situation.

A: Data Integrity: The dependability and trustworthiness of data throughout its lifespan is referred…

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.