Database design and Applications CSIZG518/SEZG518/SSZG518)(S2 -22)

[Audio] Good morning everyone, I am pleased to join you here today to talk about Database Design and Applications. Throughout this course, we will cover many topics, such as ER and EER Modeling, Relational Algebra and Calculus, SQL and Schema Refinement, Normal Forms and more. We will assess your understanding through three quizzes, a project, and two exams. Let's start!.

[Audio] Database design and applications is a course aimed at providing students with a profound comprehension of database technologies. The curriculum covers the fundamentals of database design and data modeling, as well as performance optimization. Furthermore, the class delves into data manipulation languages, stored procedure programming, web-based applications, and other related topics. Upon completion of the course, students will possess the capability to build and maintain productive databases..

[Audio] This slide illustrates some of the topics we'll cover in this course. We'll start by getting an introduction and overview of Database Management Systems and explore the different types of database models like Entity Relationship (ER) and Extended Entity Relationship (EER) Modeling. We'll also learn about the Relational Model, how it works, and how to write Relational Algebra and Calculus. We'll look into Structured Query Language (SQL) and Schema refinement and the different types of normal forms. We'll look into Disk Storage, Hashing, Indexing, Transaction Management and Concurrency Control, Database Recovery, Security and Query processing and optimization. We'll also look into Schema-less databases - NoSQL. This is just a glimpse of the topics we'll cover in this course..

[Audio] For this presentation, we are discussing database design and applications. We will now focus on the course evaluation. Each student will receive 30 marks for EC1, which will consist of 5 marks from quiz 1, 5 marks from quiz 2, 5 marks from quiz 3, as well as 15 marks from the project. Additionally, 30 marks will be awarded to EC2, which will be a closed book exam, and 40 marks to EC3, which will be an open book exam. In total, the marks a student can accumulate are 100..

[Audio] Exam dates are quickly approaching. Mid-semester exams are scheduled from 22nd to 24th of September, with makeup exams from 6th to 8th of October. Comprehensive exams are scheduled from 24th to 26th November, with makeup exams from 1st to 3rd of December. All these dates can be found on the Taxila or LMS portal. Therefore, remember to make a careful plan and prepare consequently..

[Audio] Today's topic is database design and applications. We'll be exploring the fundamentals of database design and the various applications. As part of this topic, we will be conducting two quizzes to test your understanding. The first quiz will focus on introduction to DBMS, conceptual design, logical design, relational algebra, relational calculus, and SQL. It will be conducted between September 1st and 10th with a time limit of fifteen minutes. The second quiz will focus on normalization, functional dependency, disk storage, hashing and indexing, and B and B+ trees. This quiz will run from October 1st to 10th and will also have a time limit of fifteen minutes. I look forward to seeing you all in the quizzes and wish you all the best..

[Audio] In this presentation, I'm going to talk about the Dos and Don'ts of the Database Design and Applications course. Specifically, I'm going to discuss the importance of watching our course's RL in Taxila or LMS portal before coming to class, solving problems during the contact sessions, and practicing the problems at the end of each chapter. Additionally, I'll touch upon the project that every student is allocated and what the deliverables are. I'll also cover the Midterm and Comprehensive exams, and the quizzes and project. Finally, I'll emphasize the importance of informing me in advance, in case of any unexpected situations. That's all for today. Thank you..

[Audio] Today we will be looking at the concepts and architecture of database management systems. A database management system or DBMS is basically a collection of programs that help us create and manage databases. We will explore some of the components that make up a DBMS and how they work together. We will also talk about the various types of database models and the different methods for storing and retrieving data from a database. Finally, we will cover some of the best practices for database design. This session will give you a comprehensive introduction to the world of database management..

[Audio] Discussing the basics of database design and applications, we will begin by introducing the concept of a Relational Database Management System (RDBMS) and comparing it to traditional file systems. Moving on to the three-schema architecture and data independence, we will then discuss the components of the database system and how they interact, including a discussion about the data dictionary, as well as the different phases of database design. Lastly, we will inspect the required reading and references for this topic..

[Audio] Discussing database design and applications, data is the foundation of modern computing. A datum is a unit of information which can be a single symbol, such as a number or letter. Data refer to a collection of related facts and other information that has inherent meaning. Built for a specific purpose, when structured correctly, data can represent some aspect of the real world. A logically coherent collection of data forms a database, a system used for storing, managing, and retrieving data. Today, we will analyze the principles of databases and how they can be used to store and manipulate data..

[Audio] Database design begins with understanding the data that needs to be stored. An example shows how various data types such as character, number, date, currency, boolean, and sets are represented in a table. Different types of data need to stored differently, and it is important to ensure that data is stored in the most efficient way. Additionally, all conditions must be satisfied to maintain data integrity and accuracy. Further discussion on database design and applications will be addressed in the next slide..

[Audio] I'm here to explain the concept of databases and how they work. The fundamental unit of information is called a datum, while a collection of related data is called data. Data is composed of known facts that are recorded and have implicit meaning. It can represent some aspect of the real world. A database is a logically coherent collection of data with inherent meaning, built for a specific purpose. Hope this information has been helpful and look forward to further discussions..

[Audio] Database design and applications will be discussed. A database is a compilation of related data with a concealed meaning. To illustrate better, examples are provided. An employee database will include information for each employee, such as name, identification number, contact information, locality, position, division, and pay. Also, details about the department, such as the name, number, number of staff, and head of department or manager, will be found. A second sample is a sales database, containing data about sales and salespersons from one or various branches of a business. The last example is a user database, with details of all users of a system, including credentials and log details..

[Audio] Database size is a key factor in determining the applications that can use it. Depending on its size, a database can be used to facilitate a single application or multiple applications, such as transaction processing systems. Generally, the larger the database, the more applications it can support and the greater the type and amount of data it can contain. The larger the database, the faster it can perform queries or process transactions..

[Audio] I'm going to discuss database design and applications. I will explain the distinction between data and information. Data is defined as 'raw facts and figures' and can include figures, words, symbols and images. Information is data which is organized and presented in an understandable manner. Database design is based on organizing data. A database is a collection of interconnected data that is structured and stored on a computer through tables. Databases are used to store large amounts of data which is necessary to provide accurate information. We will examine the various databases being used in businesses currently, and how to design a successful database..

[Audio] I would like to talk about Database Design and Applications. We will be exploring various types of databases and their applications. Traditional databases are used to store textual or numerical information, multimedia databases are used to store digital images, audio clips and video streams, geographic information systems store and analyze maps, weather data and satellite images. Data warehouses and online analytical processing (OLAP) systems or analytical databases are used to extract and analyze useful business information from big databases in order to aid decision making. Lastly, real-time and active database technology is used to control industrial and manufacturing processes. Now let us look into each of these in more detail..

[Audio] In order to ensure success in designing and developing databases and applications, it is important to have a good understanding of Database Management Systems (DBMS) and the operations associated with them. DBMS are computer software programs that are used to store, organize and manage databases, while providing various tools to aid users in their interaction with the data stored. Such databases can include customer information, employee records, financial records, and much more. DBMS is responsible for controlling access to the data, securing it, and providing access to the data. Therefore, having a basic understanding of DBMS and its operations is key to successfully designing and developing databases and applications..

[Audio] How can we share a database? A Database Management System (DBMS) is a collection of programs that enables users to create and maintain a database. It is a general purpose software system that assists in the definition, construction, manipulation and sharing of databases between different users and applications..

[Audio] Traditional file processing refers to the way data was stored and managed before the invention of database management systems. It follows a data centric approach, where physical storage of data is the focus. Data would typically be stored in physical files, such as text documents, spreadsheets, or binary files. Manual management of these files is necessary, which includes backing up, transferring, and updating. Therefore, traditional file processing is not suitable for dealing with large volumes of data..

[Audio] Concerning traditional file processing, it involves managing data as a collection of files, rather than as a single unit. Each file is composed of data stored in tables and records, making data search and retrieval quicker than other methods. However, for it to remain up to date and accurate, careful organization and regular maintenance are required. Going further, I will explain more regarding how it can be used in database design and applications..

Traditional file processing.

[Audio] A Database Management System allows applications to communicate with a database and provides a secure environment to manage data. It also permits applications to store, access, update, delete, and modify data in the database. The DBMS acts as a bridge between the user and the database, providing access to both..

[Audio] We will be discussing the Database Management System (DBMS) environment and the components that are essential for its success. Database Design, Database Access and Application Programming Interfaces (APIs) are all components that form part of the DBMS environment. We will examine each one in more detail and their contribution to the DBMS environment..

[Audio] When it comes to designing and manipulating a database, there are various operations that must be undertaken. These operations involve defining the database, constructing the database, manipulating the database, sharing the database, and querying the database. Knowing the purpose and function of each of these operations can greatly enhance a database design and application. With a thorough understanding of each operation, users can make the most out of a database..

[Audio] We will be discussing the details of database design and applications, focusing on the definition and construction of a database, as well as the DBMS operations in more detail. Specifying the data types, structures, and constraints of the data to be stored, as well as discussing the meta-data stored in the form of a database catalog or dictionary. Additionally, we will be discussing how to manipulate a database, including functions such as querying, updating, and generating reports from the data. Thank you for your attention..