Introduction to Relational Databases

Tables, consisting of rows and columns

To establish relationships between tables and associate data across multiple tables

One-to-one, one-to-many, or many-to-many

<p>Constraints, such as primary keys, foreign keys, and referential integrity rules</p> Signup and view all the answers

<p>Record</p> Signup and view all the answers

<p>Field</p> Signup and view all the answers

<p>Structured Query Language (SQL)</p> Signup and view all the answers

<p>Reducing data redundancy and ensuring data integrity</p> Signup and view all the answers

<p>ACID (Atomicity, Consistency, Isolation, Durability)</p> Signup and view all the answers

<p>Providing a centralized, scalable, and reliable data infrastructure</p> Signup and view all the answers

<p>By acting as a centralized repository for an organization's data, allowing for the integration of data from various sources</p> Signup and view all the answers

<p>Handling large volumes of data and supporting concurrent access from multiple users or applications</p> Signup and view all the answers

<p>Through the use of constraints, such as primary keys, foreign keys, and referential integrity rules</p> Signup and view all the answers

<p>Tables, rows, and columns</p> Signup and view all the answers

<p>Providing a powerful and versatile set of commands and functions for data manipulation and retrieval</p> Signup and view all the answers

<p>Understanding the structure and relationships of the data, leading to more effective analytical insights</p> Signup and view all the answers

<p>Relational databases seamlessly integrate with various business intelligence (BI) tools, such as data visualization software, reporting platforms, and analytics applications.</p> Signup and view all the answers

<p>Access control, user permissions, and audit logging.</p> Signup and view all the answers

<p>The mathematical concept of relations, which are represented as tables.</p> Signup and view all the answers

<p>Spreadsheets or Excel worksheets.</p> Signup and view all the answers

<p>A single instance or occurrence of an entity within a table.</p> Signup and view all the answers

<p>A field or attribute that represents a specific type of data that can be stored for an entity.</p> Signup and view all the answers

<p>To uniquely identify each row in a table.</p> Signup and view all the answers

<p>A column or combination of columns that refers to the primary key of another table.</p> Signup and view all the answers

<p>To ensure data integrity, optimize database performance, and facilitate effective business analytics.</p> Signup and view all the answers

<p>Numeric types, character types, date and time types.</p> Signup and view all the answers

<p>Transactions</p> Signup and view all the answers

<p>Through locking and isolation levels</p> Signup and view all the answers

<p>Scalability</p> Signup and view all the answers

<p>To protect the data from unauthorized access or modifications</p> Signup and view all the answers

<p>Efficient data retrieval, update, and deletion</p> Signup and view all the answers

<p>To ensure the availability and recoverability of the data</p> Signup and view all the answers

<p>To improve the performance of data retrieval by creating a sorted list of values and their corresponding row locations.</p> Signup and view all the answers

<p>To provide a customized perspective of the data, allowing users to access and manipulate data as if it were a table.</p> Signup and view all the answers

<p>They encapsulate complex logic, calculations, or data manipulation tasks, improving efficiency and maintainability.</p> Signup and view all the answers

<p>To ensure that the data is organized, consistent, and easily accessible for business analytics and decision-making.</p> Signup and view all the answers

<p>A person having a single passport record, and the passport record being associated with a single person.</p> Signup and view all the answers

<p>The primary key in the parent table.</p> Signup and view all the answers

<p>A table is a physical storage of data, while a view is a virtual table derived from one or more underlying tables.</p> Signup and view all the answers

<p>By creating a sorted list of values and their corresponding row locations.</p> Signup and view all the answers

<p>They represent the 'many' side of a one-to-many relationship or the 'many' side of a many-to-many relationship.</p> Signup and view all the answers

<p>They enable the storage of binary data, such as images, documents, or multimedia files.</p> Signup and view all the answers

<p>To store the relationships between the related tables, allowing for a many-to-many relationship.</p> Signup and view all the answers

<p>To create a well-structured database that is efficient, scalable, and maintainable.</p> Signup and view all the answers

<p>Reduction of data redundancy, which can lead to inconsistencies and data integrity issues.</p> Signup and view all the answers

<p>The Boyce-Codd normal form is a stricter version of the third normal form, requiring that every determinant be a candidate key.</p> Signup and view all the answers

<p>Improved data security and privacy, with better control over data access and permissions.</p> Signup and view all the answers

<p>The relational model is a way of organizing data into tables, and it was first proposed by Edgar Codd in the 1970s.</p> Signup and view all the answers

<p>Organizing data into tables, where data is stored in rows and columns.</p> Signup and view all the answers

<p>To ensure that each cell contains a single value, eliminating repeating groups or arrays within a single column.</p> Signup and view all the answers

<p>Elimination of data anomalies, such as insertion, update, and deletion anomalies, which can occur in denormalized databases.</p> Signup and view all the answers

<p>Normalized databases are more flexible and scalable, with changes to the data structure having minimal impact on existing data and applications.</p> Signup and view all the answers