In this course, you'll learn how to use PostgreSQL to author queries that retrieve information from databases. Using SQL, you'll learn how to select the data you need, filter that data, and gather data from various tables.
While each organization will have its own database preference, data analysts will benefit from knowing the basics of querying data from PostgreSQL, a popular open-source database platform. In this course, Querying Data from PostgreSQL, you will get a comprehensive introduction of how to query data using PostgreSQL and its pgAdmin tool. First, you will learn the basic structure of a relational database. Next, you will discover how to select data from tables, apply criteria and filters to limit your results, and enhance these skills by retrieving data from multiple tables. Finally, you will explore basic aggregation functions and be exposed to ANSI-compliant SQL. When you're finished with this course, you will have the skills and knowledge of PostgreSQL necessary to easily retrieve data from relational databases.