String Function

Duration: 9 min

This video lesson is available to enrolled students.

Return to /learn/MPPSC-ASSISTANT-PROFESSOR-COMPUTER-SCIENCE-PAPER-2/database-management-system/sql/library-functions-math-aggregate-string-date/asset-string-function after enrolling

Inside: a video lesson and guided study material.

Module outline

  1. About Course: About the Course
  2. Paper 1 | General Studies: State Wise GK
  3. Paper 1 | Information and Communication Technology: Role of Internet and Web Services, Security in Mobile and Wireless Computing
  4. Paper 1 | Current Affairs: GK- Current Affairs
  5. Paper 2 | Discrete Mathematical Structure: Digital Systems & Boolean Basics, Logic Gates & Hardware, Boolean Expression, Boolean Minimization, Set Theory, Relations, Functions, Graph Theory, Group Theory, Propositional and Predicate Logic, Probability
  6. Paper 2 | Digital Computer Organization And Architecture: Number System, Number Representation, Sequential Circuits, Combinational Circuit, Basics of COA, Floating Point Rep, Cache Memory Organization, Input Output Organisation, Pipelining, Instr Formats & Modes, Register Transfer and Microoperations, Control Unit Design, Programming the Basic Computer
  7. Paper 2 | C Programming: C Fundamentals, Control Flow, Functions, Arrays & Pointers, Storage Classes, Structures & Enums, DMA, Macros, Scoping & File Handling
  8. Paper 2 | Programming Languages & Object-Oriented Programming Concepts: Java, OOPS with C++, Java Fundamentals, Array, String, IO & References
  9. Paper 2 | Python: Introduction to Python, Tokens, Variables, Data Types, I/O, Operators & Expressions, Control Flow & Looping, Collections & Strings, Functions & Modules, File Handling & Data Analysis
  10. Paper 2 | Data Structure And Algorithms: Introduction to DS, Array, Stack, Queue, Linked List, Tree, Graphs, Hashing, Algorithm Analysis, Time Complexity Analysis, Sorting Algorithms, Greedy Algorithms, Minimum Spanning Trees, Advanced Algorithms
  11. Paper 2 | Operating System: Introduction to OS, Process Management, CPU Scheduling, Process Synchronization, Deadlock, Threads & Process Creation, Memory Management, Virtual Memory, Disc Scheduling, File Management, Unix OS
  12. Paper 2 | Theory Of Computation: Introduction to TOC, Deterministic FA (DFA), Non-Deterministic FA, Regular Expressions, Grammar, Regular Language Properties, Moore & Mealy Machines, Pushdown Automata & CFG, Turing Machines, Complexity Theory
  13. Paper 2 | Compiler Design: Intro to Compilers, Lexical Analysis, Grammar & CFG, Syntax Analysis: Top-Down, Syntax Analysis: Bottom-Up, Semantic Analysis & SDT, Intermediate Code Gen, Code Optimization, Run Time Environment
  14. Paper 2 | Database Management System: Basics of DBMS, ER Diagram, Relational Model & Functional Dependencies, Keys & Integrity Constraints, Normalization (1NF - BCNF), Decomposition Properties & 4NF, Relational Algebra, SQL, Transaction Management, Concurrency Control, Database Recovery, Database Security & Authorization, Enhanced Data Models
  15. Paper 2 | Computer Network And Information Security: Introduction to CN, Data Communication, Application Layer, Hardware basics, Cyber Threats and Malware Attacks, Network Security, 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
  16. Paper 2 | Software Engineering: Fundamentals of Software Engineering, Software Requirements and Quality Assurance, Software Design, Estimation and Metrics, Software Testing, Software Maintenance and Configuration Management
  17. Paper 2 | Current Trends & Technologies: Emerging Tech Trends, Approaches to AI, Search Algorithms, Game Playing, Knowledge Representation, Planning, Multi Agent Systems, Fuzzy Sets, Natural Language Processing, Artificial Neural Networks, Genetic Algorithms, Artificial Intelligence, Data Warehousing & Mining, Electronic Data Interchange and E-Commerce, Terms & Abbreviations
  18. Paper 2 | Full Length Mock Tests:
AI summary & chapters

AI Summary

An AI-generated summary of this video lecture.

This video provides a comprehensive tutorial on SQL string functions, focusing on case conversion, length measurement, extraction, search, and formatting. The instructor systematically explains functions like UPPER() and LOWER() with practical examples using a 'Student' table. The lesson then transitions to functions for measuring string length, such as CHAR_LENGTH() and LENGTH(), highlighting the difference between character and byte counts. Further, it covers string manipulation functions including CONCAT() for combining strings, SUBSTRING() for extraction, REPLACE() for text replacement, and INSTR() for locating character positions. The final segment introduces trimming functions (TRIM, LTRIM, RTRIM) and string reversal (REVERSE), along with LEFT() and RIGHT() for grabbing substring portions. The instructor uses clear syntax examples and visual annotations to reinforce learning.

Chapters

  1. 0:00 – 2:00 00:00-02:00

    The instructor introduces SQL string functions, emphasizing their importance in data cleaning and report generation. The first segment focuses on case conversion, explaining UPPER() and LOWER() functions with examples using a 'Student' table. The instructor demonstrates how to convert text to uppercase or lowercase, showing the syntax and results for a sample name column.

  2. 2:00 – 5:00 02:00-05:00

    The lesson shifts to string length and measurement functions. The instructor explains the difference between CHAR_LENGTH() and LENGTH(), using the example of the character 'e' to illustrate that special characters can occupy more than one byte. The segment then introduces the CONCAT() function for combining strings, with examples of concatenating first and last names, and multiple strings together.

  3. 5:00 – 9:17 05:00-09:17

    The instructor covers extraction and search functions, including SUBSTRING() for extracting portions of a string, REPLACE() for replacing text, and INSTR() for finding character positions. The final part of the lesson introduces trimming functions (TRIM, LTRIM, RTRIM) for removing unwanted spaces, the REVERSE() function for string reversal, and LEFT() and RIGHT() for grabbing characters from the start or end of a string. The instructor uses consistent examples and visual annotations to reinforce understanding.

The video systematically teaches SQL string functions, progressing from basic case conversion to advanced text manipulation. It emphasizes practical application through clear examples and visual aids, making it an effective resource for learners to understand and apply these functions in real-world database scenarios.

Loading lesson…