PostgreSQL is commonly known as Postgres and it is also open source database. There is an increasing need for data scientists and analysts to understand relational data stores. Organizations have long used SQL databases to store transactional data as well as business intelligence related data. If you need to work with SQL databases, this course is designed to help you learn how to perform common relational database advanced queries using various analytic and aggregate functions.
What you will learn includes: Downloading and installing PostgreSQL Querying tables Introduction to Aggregate Functions Writing queries to perform various aggregate functions like: AVG, COUNT, SUM, MIN,MAX Introduction to Analytic Functions Illustrating various Analytic functions Row Number Functions Using various types of Operators Introduction to Table Joins Using various types of joins Windowing functions for working with ordered data sets Postgresql INNER JOIN Retrieving all Data from Table PostgreSQL FULL OUTER JOIN PostgreSQL CROSS JOIN PostgreSQL NATURAL JOIN PostgreSQL Left Join
The course will teach you how to aggregate data,analyse data ,retrieve data from multiple tables using table joins and write more advanced queries.