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Articles tagged with #sqltutorial
LEFT Pulls a specified number of characters for each row starting from the beginning i.e. the left side. product_idproduct_name 1Apple iPhone 13 2Samsung Galaxy S21 3Google Pixel 6 SELECT product_id, LEFT(product_name, 3) AS abbreviated_na...
Joins is a clause in SQL used to combine rows from two or more tables based on a related column. Tables that share information have a primary key that identifies the entity uniquely across the database. JOIN combines row data across separate tables u...
Analyzing NYC Public school test result scores
One of the key features of SQL is its ability to perform aggregate functions and group data, allowing us to extract meaningful insights from large datasets. In this article, we'll dive into some of the most commonly used aggregate functions and explo...
Introduction The ORDER BY statement allows us to arrange query results in a specific order based on one or more columns. Therefore, we can present data in a more structured manner. Syntax: SELECT * FROM table ORDER BY column Here, table refers to th...
For our practice, we'll be using the Online IDE you can code along. Here is a simple guideline for uploading your files On Your browser search SQL ONLINE IDE Here is how the page looks like On the left side, you can see the different SQL flavor...