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Introduction to SQL for Data Scientists

Introduction to SQL for data ScientistsBen O. Smith College of Business AdministrationUniversity of Nebraska at OmahaLearning ObjectivesBy the end of this document you will learn:1. How to perform basic SQL commands2. Understand the difference between left , right and full joins3. Understand groupings and how they connect to aggregation functions4. Understand data type basics5. How to perform basic subqueries1 IntroductionIn the information sciences, we commonly have data spread across multiple data sets or databasesources. Thankfully, most database servers have an agreed upon a standard format to interact,merge and answer questions with that data : SQL (Structured Query Language). While subtledistinctions exists between database systems (SQL Server, SQLite, MySQL, Oracle and others),SQL is (mostly) a portable skill across server Tables and data TypesIn most cases, you will be interacting with or creating tables of data .

Introduction to SQL for Data Scientists Ben O. Smith College of Business Administration University of Nebraska at Omaha Learning Objectives By the end of this document you will learn:

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