String Function

Duration: 9 min

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Inside: a video lesson and guided study material.

Module outline

  1. Paper 1 | Reasoning Test: Series (Number and Letter Series) (Numerical Relations and Reasoning), Coding Decoding, Data Sufficiency, Syllogisms, Deductive and Inductive Reasoning (Logical Deduction and Induction) (Prepositional Reasoning), Seating Arrangements, Blood Relations, Puzzle Solving (Puzzles), Venn Diagram, Analogy, Ranking, Order and Sequence, Non Verbal Reasoning (Spatial Aptitude) (Spatial Reasoning) (Visual Reasoning), Selection Decision Table (Decision Making), Logical Sequence Of Words, Cubes & Dices, Analytical Reasoning (Counting Figures Reasoning), Calendar, Alphabet and Word Tests, Numerical Reasoning, Number System, Averages, Mixtures and Alligation, Percentages, Series Completion, Analogy and Classification, Patterns in Two-Dimensional Figures, Coding and Decoding, Mathematical Operations, Direction Sense, Algebra, Logical Deduction and Induction, Syllogisms and Venn Diagrams, Critical Reasoning, Order, Ranking and Sequence, Reading Comprehension, Profit, Loss and Discount, Constraint Puzzles, Speed, Time and Distance, Traverse Surveying, Ratio and Proportion, Time and Work, Mensuration, Permutations and Combinations, Clocks and Calendars, Data Interpretation, Assembling and Grouping of Shapes, Transformation of Shapes, Three-Dimensional Patterns and Visualization, Cubes and Dice, Vocabulary, Blood Relations, Data Sufficiency
  2. Paper 1 | Numerical Analysis: Number System, HCF LCM, Percentage, Ratio and Proportion (Ratios), Average, Sequence and Series (Series), Powers and Exponents (Surds and Indices), Algebra, Statistics, Data Interpretation, Mental Ability, Arithmetic, Logarithm, Profit and Loss, Simple Interest and Compound Interest, Speed Time and Distance, Mixture and Alligation, Mensuration and Geometry, Permutation and Combination, Probability, Sequences and Series, Powers, Surds and Logarithms, Subject-Verb Agreement, Sentence Completion, Geometry, Sentence Structure and Correction, Data Sufficiency, Trigonometry, Measurement and Quantity Take-Off, Signal Space and Optimum Detection, Probability, Statistics, Algebra, Time and Work, Speed, Time and Distance, Data Interpretation, Graph Theory, Combinatorics
  3. Paper 1 | General Knowledge: State Wise GK, History, Geography, GK- Current Affairs, Static General Knowledge, Polity, Indian Economy
  4. Paper 1 | DBMS: Basics of DBMS, ER Diagram, Relational Model & Functional Dependencies, Keys & Integrity Constraints, Normalization (1NF - BCNF), Decomposition Properties & 4NF, File Organization & Indexing, Relational Algebra, SQL, Transaction Management, Concurrency Control, Relational Calculus, Database Security & Authorization, Database Recovery
  5. Paper 1 | Data Communication & Network: 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, Network Security, Security in Mobile and Wireless Computing, Input Output Organisation, File Management, Hardware Basics, Terms & Abbreviations, Protocols & Services, Network Access Technologies, Cyber Safety and Security, Basics of COA
  6. Paper 2 | System Analysis & Design: Fundamentals of Systems and Information Systems, SDLC and Development Approaches, Fundamentals of Software Engineering, Software Requirements and Quality Assurance, Software Documentation and Software Requirements Specification (SRS), SDD and Quality Assurance, Software Design, Estimation and Metrics, Software Testing, Software Maintenance and Configuration Management, Security, Risk Management & Maintenance, extras
  7. Paper 2 | Programming Language (Java): Java Fundamentals, OOPS with Java, Array, String, IO & References, Generic & Collections, Multithreading, Java, Miscellaneous, Control Flow, OOPS with C++, Stack, C Fundamentals, Arrays & Pointers, Object Oriented Technology, Control Flow & Looping, Introduction to Python
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.

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