Learn SQL articles

For an instructor lead, in-depth look at learning SQL click below. Learn SQL >> Welcome to the world of SQL programming! Today, we will dive into understanding a pivotal concept in SQL, known as the ‘Foreign Key’. If you are stepping into the database field, this is an essential concept you need to familiarize yourself […]

For an instructor lead, in-depth look at learning SQL click below. Learn SQL >> Structured Query Language (SQL) is a popular relational database management system (RDBMS) language used for managing and manipulating databases. One important aspect of SQL databases is the concept of a primary key. This is a unique identifier for a record in

For an instructor lead, in-depth look at learning SQL click below. Learn SQL >> Using databases in any software application, it’s essential to understand the principles which guarantee the safety of your data. Among these principles, we find the ACID properties. ACID stands for Atomicity, Consistency, Isolation, and Durability. These guarantee that the database transactions

For an instructor lead, in-depth look at learning SQL click below. Learn SQL >> Welcome to this beginner’s guide for using the UNION operator in SQL! UNION is a very useful SQL operand that lets you combine the result sets of two or more SQL queries. What is UNION? UNION is a SQL command that

For an instructor lead, in-depth look at learning SQL click below. Learn SQL >> In the vast universe of data management, ensuring data uniqueness is a critical aspect. Similar to real life where we differentiate things based on their unique qualities, the same rule applies in the context of data. In SQL, we can achieve

For an instructor lead, in-depth look at learning SQL click below. Learn SQL >> SQL or Structured Query Language, as the name suggests, is a language used to query or operate on a database. A powerful aspect of SQL is the use of subqueries, also referred to as inner queries or nested queries. A subquery

For an instructor lead, in-depth look at learning SQL click below. Learn SQL >> With the ever-increasing amounts of data generated by businesses and organizations, the ability to efficiently manage and analyze this data is important. SQL – Structured Query Language – is the industry standard tool for interacting with databases. This blog post will

For an instructor lead, in-depth look at learning SQL click below. Learn SQL >> The UPDATE statement is one of the most commonly used commands in SQL (Structured Query Language). Its main function is to modify the existing records in a table. It’s an essential tool for any SQL programmer, as data rarely stays the

For an instructor lead, in-depth look at learning SQL click below. Learn SQL >> The Structured Query Language (SQL) is a powerful language commonly used in manipulating data stored in relational databases. Today, we will delve deeper and explore one of the most critical aspects of SQL – the VALUES clause. We will uncover how

For an instructor lead, in-depth look at learning SQL click below. Learn SQL >> Stored procedures in SQL are pre-compiled and reusable groups of SQL statements that are named and stored in a database. They offer various advantages such as improving performance by reducing the amount of information sent to a server, preventing SQL injection