Basics of Relational Model

Duration: 5 min

This video lesson is available to enrolled students.

Return to /learn/LTI-MINDTREE-PREPARATION/dbms-sql/relational-model-functional-dependencies/basics-of-relational-model-anomalies/asset-basics-of-relational-model after enrolling

Inside: a video lesson and guided study material.

Module outline

  1. English Comprehension/Verbal Ability: Comprehension / Reading Comprehension / Unseen Passages (Critical Reasoning) (Paragraph Questions), Vocabulary, Sentence Correction (Error Correction), Sentence Completion (Fill in the blanks), Sentence Re-arrangements (Para Jumbles) (Narrative Sequencing), Subject Verb Agreement (Verb Noun Agreement), Tenses, Verb, Articles, Preposition, Conjunction, Pronoun, Noun, Adjectives, Adverb, Modals, Cloze Test (Cloze Passage), Active Passive Voice (Voice), Direct and Indirect Speech, Sentence Construction
  2. Logical Ability: Coding Decoding, Directions (Direction Test), Analogy, Inequality, Data Sufficiency, Series (Number and Letter Series) (Numerical Relations and Reasoning), Syllogisms, Seating Arrangements, Puzzle Solving (Puzzles), Blood Relations, Deductive and Inductive Reasoning (Logical Deduction and Induction) (Prepositional Reasoning), Ranking, Order and Sequence, Logical Sequence Of Words, Data Arrangement, Venn Diagram, Calendar, Clock
  3. Quantitative Ability: Logarithm, Permutation and Combination, Probability, Profit and Loss, Speed Time and Distance, Mixture and Alligation, Partnership, Simple Interest and Compound Interest, Percentage, Ratio and Proportion (Ratios), Average, Time and Work, Pipe and Cistern, Number System, Divisibility Rules, HCF LCM, Algebra, Powers and Exponents (Surds and Indices), Mensuration and Geometry, Age Problems, Data Interpretation, Sequence and Series (Series)
  4. Basic Analytical Ability: Non Verbal Reasoning (Spatial Aptitude) (Spatial Reasoning) (Visual Reasoning), Analytical Reasoning (Counting Figures Reasoning), Cubes & Dices, Selection Decision Table (Decision Making)
  5. Computer Programming: Pseudo Codes, Coding Questions by Yash Sir, C Programming by Yash Sir, Programming in C++, Java, Python for Placements by Yash Sir
  6. DBMS (Computer Science): Basics of DBMS, ER Diagram, Relational Model & Functional Dependencies, Keys & Integrity Constraints, Normalization (1NF - BCNF), Transaction Management, Concurrency Control, Database Security & Authorization
  7. SQL (Computer Science): SQL
  8. OS (Computer Science): Introduction to OS, Process Management, CPU Scheduling, Deadlock, Process Synchronization, Threads & Process Creation, Memory Management, Virtual Memory, File Management
  9. Computer Networks (Computer Science): Introduction to CN, Data Communication, DLL: Access Control, DLL: Flow Control, DLL: Error Control, DLL: Framing, Data Link Layer - Ethernet, Net Layer: IPv4 & Proto, Net Layer: IP Addressing, Net Layer:Routing Protocol, Transport Layer Services, TL: Congestion & UDP, Application Layer, Hardware basics, Network Security
  10. Data Structures (Computer Science): Introduction to DS, Array, Stack, Queue, Linked List, Tree, Graphs, Hashing
  11. OOPs (Computer Science): Object Oriented Programming (OOPS)
  12. Software Engineering (Computer Science): Fundamentals of Software Engineering, Software Requirements and Quality Assurance, Software Design, Estimation and Metrics, Software Testing, Software Maintenance and Configuration Management
  13. SVAR Conversational - Spoken English: Communication Assessment
  14. HR Interview: MR & HR Interview Preparation
AI summary & chapters

AI Summary

An AI-generated summary of this video lecture.

This educational video introduces the core concepts of Relational Database Management Systems (RDBMS). It begins by defining RDBMS as a system based on the relational model proposed by Edgar F. Codd in 1970. The lecture then moves to the basics, defining essential terms such as Domain, Tuple, Arity, and Cardinality using a sample table containing student information. Finally, the instructor outlines the seven fundamental properties of relational tables, emphasizing atomicity, uniqueness, and the insignificance of row and column order.

Chapters

  1. 0:00 – 2:00 00:00-02:00

    The video opens with a slide titled RELATIONAL DATABASE MANAGEMENT SYSTEM. The text defines RDBMS as a database engine/system based on the relational model specified by Edgar F. Codd. Key phrases like relational model and Edgar F. Codd are underlined in red. A second bullet point identifies Codd as The father of modern relational database design in 1970, with modern relational database design and 1970 also underlined. A black and white photograph of Edgar F. Codd is displayed on the right side of the slide. The instructor is visible in the bottom left corner, introducing the topic.

  2. 2:00 – 5:00 02:00-05:00

    The content shifts to BASICS OF RDBMS. The slide defines Domain as a set of permissible value in particular column consisting of atomic values. It explains that atomic means indivisible. A sample table is shown with columns NAME, ID, CITY, COUNTRY, and HOBBY. The instructor highlights the CITY column to illustrate a domain. The slide then defines Table (Relation) as a set of tuples, Tuple as each row, Arity/Degree as the number of columns (example: 5 in Table Student), and Cardinality as the number of rows (example: 4 in table Student). Red boxes and arrows are used to visually connect these definitions to the table structure. Specific data values like NISHA, 1, AGRA, INDIA, and PLAYING are visible in the table rows.

  3. 5:00 – 5:23 05:00-05:23

    The final section covers Properties of Relational tables. The slide lists seven specific rules. These include: Cells contains atomic values, Values in a column are of the same kind, Each row is unique, No two tables can have the same name in a relational schema, Each column has a unique name, The sequence of rows is insignificant, and The sequence of columns is insignificant. As the instructor discusses each point, he places a red checkmark next to it on the screen to indicate its validity and importance in relational theory. He gestures with his hands to emphasize the concepts.

The lecture provides a structured introduction to RDBMS, starting with historical context and moving to technical definitions. By using a concrete example table, the instructor clarifies abstract concepts like domain and cardinality. The lesson concludes by establishing the strict rules that govern relational tables, ensuring students understand the theoretical constraints necessary for database design.

Loading lesson…