Databases for Business Analytics

Catalog description

Databases are ubiquitous in all businesses and hold significant information about the business. Every data analysis and report typically starts with an SQL query, as SQL is the lingua franca of all database systems. Therefore, SQL is necessary for anyone who needs to analyze data as part of their job. Many tech companies consider the knowledge of SQL a prerequisite for all their analysts and managers. This database class is designed for absolute beginners and teaches students how databases are structures and how to write SQL queries that retrieve data from a database. The hands-on clsas focuses on developing the necessary skills for writing SQL queries. We will cover the following topics: - Basics of Entity-Relationship model and the connection to databases - USE, DESCRIBE queries to understand the structure of a database - Selection queries: *,column,column AS, DISTINCT, ORDER BY, LIMIT - Filtering data using ""where"": Boolean conditions, IN, BETWEEN, LIKE - Join queries: Inner and Outer joins, self-joins ,semi-joins, anti-joins - Aggregation queries: GROUP BY,SUM, AVG, MAX, MIN, etc - Subqueries - Window queries