Learn SQL articles

For an instructor lead, in-depth look at learning SQL click below. Learn SQL >> w can I escape special characters in a string in SQL? In SQL programming, there comes a point where we have to deal with special characters in a string. These could be quotation marks, apostrophes, or even wildcard characters that serve […]

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 >> 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 >> 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 >> In SQL, we use the ORDER BY keyword to sort the data in ascending or descending order, based upon any column or columns. By default, the sorting is done in ascending order. If you want to sort the results in descending

For an instructor lead, in-depth look at learning SQL click below. Learn SQL >> Updating records in SQL databases is a common task. It can be done easily using the UPDATE statement, which is a part of the SQL standard. Before we go into examples, it’s important to understand the syntax for the UPDATE statement.

For an instructor lead, in-depth look at learning SQL click below. Learn SQL >> SQL or Structured Query Language is a powerful tool used to communicate and manipulate databases. In today’s data-driven world, understanding how to use SQL to extract useful information from raw data stored in databases is critically important. One commonly used operation

For an instructor lead, in-depth look at learning SQL click below. Learn SQL >> Calculating the difference between two timestamps in SQL can be a critical operation when it comes to date or time-based analysis. The difference can provide useful insights on time durations, which are commonly used in areas like project planning, task scheduling,