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Click “Initialize” to create a new server.After installing PostgresApp, you can setup your first database by following the instructions below: I’ll be focusing on Postgres.App for Mac OS in the rest of the tutorial. In real-case scenarios, the client and the server will often be on different hosts and they would communicate over a TCP/IP network connection. User Client App: often involves SQL command entries, a friendly graphical interface, and some database maintenance tool.Server process: manages database files, accepts connections to the database from client applications, and performs database actions on behalf of the clients.(Big) Data Scienceīefore we go into PostgreSQL, I suspect many of you have the same question: why should I care about SQL?Īlthough database management may seem like a boring topic for aspiring data scientists - implementing a dog breed classifier is very rewarding I know! - it is a necessary skill once you join the industry and the data supports this: SQL remains the most common and in-demand skill listed in LinkedIn job postings for data science jobs. However, as I reviewed the various courses myself, I noticed that a lot of focus is put on exciting and flashy topics like Machine Learning and Deep Learning without covering the basics of what is needed to gather and store datasets needed for such analysis. There is now a plethora of online courses to gain the skills needed for a data scientist to be good at their job (excellent reviews of online resources here and here). As the demand for Data Scientists continues to increase, and is being dubbed the the “sexiest job job of the 21st century” by various outlets (including Harvard Business Review), questions have been asked of what skills should aspiring data scientists master on their way to their first data analyst job.