Learn SQL articles

For an instructor lead, in-depth look at learning SQL click below. Learn SQL >> Welcome back to our ongoing series on SQL programming. In this edition, we’re going to cover HAVING, a clause in SQL that allows you to filter aggregated data. Let’s start by understanding why we need to use HAVING clause in SQL. […]

For an instructor lead, in-depth look at learning SQL click below. Learn SQL >> w can I parse a string into a specific data type in SQL? When dealing with data in SQL, one of the common tasks you might encounter is converting (or parsing) a string into a specific data type. This may come

For an instructor lead, in-depth look at learning SQL click below. Learn SQL >> Structured Query Language or SQL is a powerful language used to manipulate and retrieve data in databases. One of the more advanced but incredibly useful capabilities of SQL is the ability to perform mathematical calculations directly on your database columns using

For an instructor lead, in-depth look at learning SQL click below. Learn SQL >> Working with dates and numbers in SQL can sometimes be a bit challenging, especially when it comes to formatting them to suit the specific requirements of your application. The good news is, SQL provides a number of built-in functions that allow

For an instructor lead, in-depth look at learning SQL click below. Learn SQL >> SQL, or Structured Query Language, is a powerful tool used for communicating with and manipulating databases. It’s an essential skill for many roles in the tech industry. In SQL, databases, tables, and records all have unique identifiers. In this blog, we

For an instructor lead, in-depth look at learning SQL click below. Learn SQL >> If you’ve worked with SQL for a while, you know how powerful and convenient it is to manipulate data by joining tables within one database. But what if you need to join tables from different databases? Fortunately, SQL also provides the

For an instructor lead, in-depth look at learning SQL click below. Learn SQL >> The ability to manipulate and calculate dates is a vital part of data analysis and manipulation in SQL. It enables developers to perform a wide range of calculations, including age calculation, time span between two dates, grouping records by specific date

For an instructor lead, in-depth look at learning SQL click below. Learn SQL >> In the world of SQL, data types are fundamental. Different columns in SQL tables can store varying data types including integers, strings, or date/time values. The ability to convert values from one data type to another is essential in analyzing data

For an instructor lead, in-depth look at learning SQL click below. Learn SQL >> If you’ve been working with modern web applications, chances are that you’re familiar with JSON (JavaScript Object Notation), a popular data format for transferring data between a server and a client. Although JSON is closely associated with JavaScript, its simplicity, compactness,

For an instructor lead, in-depth look at learning SQL click below. Learn SQL >> In the realm of SQL databases, conducting full-text searches is pivotal for a wide array of applications, spanning business intelligence tools to data analysis platforms. This blog post will illuminate how you can perform a full-text search in SQL, along with