SQL was created to serve as an industry-standard platform that would simplify everyone's use of databases. Microsoft SQL Server-based businesses are prevalent in the US as well as in the software industry. SQL is used most by businesses with 10-50 employees and 1-10 million in revenue. The biggest companies that use SQL include Microsoft, NTT Data, Dell, Accenture, and Stack Overflow. SQL course will help you get the most prestigious professional positions in the field