Learn SQL articles

For an instructor lead, in-depth look at learning SQL click below. Learn SQL >> In today’s fast-paced world, task scheduling applications have become essential for managing our daily chores and business tasks. SQL is a powerful language used in managing and manipulating databases. Building a Task Scheduling application with SQL allows us to leverage the […]

For an instructor lead, in-depth look at learning SQL click below. Learn SQL >> In today’s digital age, a well-structured and efficient database system plays a pivotal role in vacation rental management. SQL (Structured Query Language) provides an ideal tool to facilitate this by storing, sorting, and retrieving data effectively. In this blog, I will

For an instructor lead, in-depth look at learning SQL click below. Learn SQL >> Keeping track of vehicle maintenance is crucial for maintaining the longevity of your vehicle. SQL can be a valuable tool when building a system to do this. The aim of this blog is to guide you through the process with examples

For an instructor lead, in-depth look at learning SQL click below. Learn SQL >> veloping a Vehicle Maintenance and Service Reminder System with SQL Introduction One of the significant applications of SQL in real life is the development of service reminder systems like those in auto companies. Utilizing SQL, we can create a robust vehicle

For an instructor lead, in-depth look at learning SQL click below. Learn SQL >> Building a vehicle maintenance log system requires a solid grasp of SQL (Structured Query Language). We’ll go through the steps to create this system, and introduce some SQL essentials along the way. Getting Started Let’s assume that we are working with

For an instructor lead, in-depth look at learning SQL click below. Learn SQL >> Welcome to the fascinating world of SQL – Structured Query Language. As a declarative language, SQL allows individuals to work with and manipulate data in relational databases. What is SQL? SQL is a language designed to work with data stored in

For an instructor lead, in-depth look at learning SQL click below. Learn SQL >> The SQL EXISTS operator is a Boolean operator that returns true if the subquery returns one or more records. The EXISTS operator is often used in the correlated subquery. A correlated subquery is a subquery that uses values from the outer

For an instructor lead, in-depth look at learning SQL click below. Learn SQL >> Keeping track of volunteer hours can be a complex task, particularly for larger organizations. However, SQL offers a powerful and flexible way to create a tracking system. This blog post takes you through the process of developing a volunteer hours tracking

For an instructor lead, in-depth look at learning SQL click below. Learn SQL >> Duplicates can appear in your SQL results for various reasons. Your data set might contain identical values, or your JOIN statements might produce repeated records. Or perhaps your subquery is returning multiple instances of the same data point. Whatever the case

For an instructor lead, in-depth look at learning SQL click below. Learn SQL >> A critical aspect of any business analytical solution is Data Warehousing. In essence, a data warehouse is a large-capacity repository that sits on the intersection of all the data collected by an organization. Data Warehousing essentially consolidates data from different sources