SQL Primer vs SQL In Easy

1970 E.F. Codd has started a revolution with his paper 'A relational model of data for large shared data banks, Communications of the ACM, Volume 13, Issue 6 (June 1970)' that finally led to the today's omnipresent database query language SQL. This little app shows some primitive and derived operations with the following information: * SQL92 and SQL86/89 sample queries, * the results of the queries and * appropriate descriptions. Furthermore the SQL test script that has been used for the calculation of the samples can be displayed. The app is interesting for the first contact with the database subject and for all who are using SQL86/89 queries for over two decades now and finally want to change to SQL92 also ;)

SQL in Easy is your all-in-one learning companion for mastering SQL and database concepts. Whether you’re a beginner or preparing for an exam, this app offers a simplified and practical way to learn and practice SQL. Key Features: • Comprehensive Topics Learn all essential SQL topics including SQL basics, joins, subqueries, views, procedures, triggers, and more. • Interactive Practice Write and run SQL queries directly in the app to test your understanding in real-time. • Most Important SQL Queries Access a curated list of commonly used and exam-focused SQL queries with explanations. • Self-Assessment Quizzes Practice with quizzes and tests designed to help you evaluate and improve your SQL knowledge. • Simple and Clean Interface User-friendly design focused on ease of learning and smooth navigation. Whether you’re preparing for a database certification, a technical interview, or just brushing up your skills, SQL in Easy makes it easy and effective.