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SQL Fundamentals

SQL, or Structured Query Language, is the go-to language for managing relational databases. It allows users to interact with databases to retrieve, manipulate, and control data efficiently. SQL provides a standardized way to define database structures, perform data operations, and ensure data integrity. From querying data to managing access and transactions, SQL is a fundamental tool for anyone working with databases. 1. Basics of SQL Introduction : SQL (Structured Query Language) is used for managing and manipulating relational databases. SQL Syntax : Basic structure of SQL statements (e.g., SELECT, INSERT, UPDATE, DELETE). Data Types : Different types of data that can be stored (e.g., INTEGER, VARCHAR, DATE). 2. SQL Commands DDL (Data Definition Language) : CREATE TABLE : Define new tables. ALTER TABLE : Modify existing tables. DROP TABLE : Delete tables. DML (Data Manipulation Language) : INSERT : Add new records. UPDATE : Modify existing records. DELETE : Remove records. DQL (Da

Python Topics

Learning Python can be an exciting and rewarding journey, especially given its versatility and widespread use in various fields like web development, data science, automation, and more. Here's a structured guide to help you learn Python effectively, covering essential topics from beginner to advanced levels. Beginner Level Introduction to Python Installation and setup Python syntax and interactive shell Writing and running your first Python script Basic Concepts Variables and data types (integers, floats, strings, booleans) Basic arithmetic operations String operation Comments and documentation Control Structures Conditional statements ( if , elif , else ) Loops ( for , while ) Data Structures Lists Tuples Dictionaries Sets Functions Defining and calling functions Function arguments and return values Lambda functions Built-in functions Modules and Packages Importing modules Standard library overview (e.g., math , datetime , random ) Installing and using external packages

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