This SQL Tutorial helps you master SQL quickly and effectively through many hands-on and practical examples with quizzes.

You'll learn how to use the SQL LTRIM function to return a new with specified characters removed from the start of the input string.

In this tutorial, you'll understand the databases and SQL, the standard language for interacting with databases.

This tutorial shows you how to extract the year from a date in SQL using functions such as EXTRACT, YEAR, and strftime.

You'll learn how to use the SQL POSITION function to find the location of the first occurrence of a substring within a string.

This tutorial introduces you to the SQL logical operators and shows you how to use them to test for the truth of a condition.

In this tutorial, you'll learn how to use the SQL TRIM function to remove leading and trailing characters from a string.

In this tutorial, you will learn how to use the SQL PRIMARY KEY constraint to add a primary key to the table.

This tutorial introduces you the SQL syntax: literals, keywords, identifiers & expressions, predicates, clauses, comments.

In this tutorial, you'll learn how to use the SQL LEFT function to return a specified number of characters from the beginning of a string.