The raise keyword in Python is used to raise exceptions. You can use it to raise built-in exceptions or your own custom exceptions. In this guide, we will explore the raise keyword, its syntax, and provide examples to illustrate its use. 1. Introduction to the raise Keyword In Python, exceptions are used to handle errors […]
Author: anujsharma
Using GitHub with Git: A Beginner’s Guide
GitHub is a web-based platform that helps you collaborate on software projects using Git, a version control system. This guide will walk you through the basics of using GitHub and common Git commands. Let’s get started: Step 1: Create a GitHub Account Step 2: Install Git Step 3: Configure Git Step 4: Create a New […]
Understanding User-Defined Functions (UDFs) in MySQL with Examples
User-Defined Functions (UDFs) in MySQL allow you to create custom functions that can be used within SQL queries. These functions can encapsulate complex logic and make your queries more modular and readable. This guide will help you understand UDFs in MySQL, including their syntax, creation, types, and examples. 1. What is a User-Defined Function (UDF)? […]
Understanding Stored Procedures in MySQL with Examples
Stored procedures are a powerful feature in MySQL that allows you to store SQL statements for later execution. They are often used to encapsulate business logic, improve code organization, and enhance security. This guide will help you understand stored procedures in MySQL, including their syntax, creation, execution, and examples. 1. What is a Stored Procedure? […]
Understanding Unions in MySQL with Examples
A UNION in MySQL is used to combine the result sets of two or more SELECT statements into a single result set. This can be useful when you need to retrieve data from multiple tables or apply different conditions to the same table and want to display the results as a single unified dataset. In […]
A Comprehensive Guide to Joining Tables in MySQL
In MySQL, joining tables is a fundamental concept used to retrieve data from multiple tables simultaneously. Joins are essential for combining related data and performing complex queries. This guide will explain the various types of joins in MySQL with examples to help you master the art of table joining. Prerequisites Before you begin, ensure you […]
Guide to Using ALTER, UPDATE, and DELETE Statements in MySQL
In MySQL, the ALTER, UPDATE, and DELETE statements are essential for modifying and managing the data in your database tables. This guide will provide you with an overview of these SQL statements, along with examples to demonstrate their usage. Prerequisites Before you start, make sure you have MySQL installed and have access to a MySQL […]
Getting Started with API in Python
1. What is an API? 2. How to Use APIs in Python? 3. Sending Requests to an API 4. Parsing the Response 5. Authenticating with an API By following these steps, you can harness the power of APIs to access data and services across the web, opening up a world of possibilities for your Python […]
A Comprehensive Guide to Using Primary Keys and Foreign Keys in MySQL
In MySQL, primary keys and foreign keys are fundamental concepts for designing relational databases. This guide will walk you through how to use primary keys and foreign keys, with examples and syntax structures. 1. Primary Keys What is a Primary Key? A primary key is a column or a set of columns in a table […]
Demystifying MySQL Aliases: Simplifying SQL Queries for Clarity
In MySQL, an alias is a temporary name assigned to a table or column for the duration of a SQL query. Aliases are used to make column names or table names more readable or to provide a shorter name for convenience in your SQL statements. They can be useful when working with complex queries, subqueries, […]