My complete SQL Masterclass Notes in Tanglish is now live! Covers 30+ topics with syntax, examples, and step-by-step explanations. Perfect for both beginners and ...

There are less than two weeks left until the re-examination in July. Today, I worked on three questions that support the 'back end' of a DB, rather than SQL queries. Reverse engineering, privilege ...

source schema. sql -- Creates database and tables source data. sql -- Inserts sample data source data_cleaning. sql -- Cleans invalid/null/duplicate data source data_manipulation. sql-- Performs ...