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Introduction to Data Extraction Using SQL

Master the basics of querying databases using SQL - The World's most popular database language

Description

This introductory beginners course will help you master the basics  of using SQL  to query and retrieve data from databases.

You will learn how to filter & sort data, customize output, & how you can query aggregated data from a database.

In this course, we will focus on ANSI(American National Standards Institute) SQL that works on

every database like Oracle, MySQL, Microsoft SQL Server,  PostgreSQL etc.


SQL has become a requirement for most database related  jobs that include:

Database Administrator -DBA , Data analyst, BI (Business Intelligence) developer, programmer, database programmer.

SQL will let you communicate with the database and work with your data.


What You will learn include:

  • Writing SQL SELECT Statements

  • Eliminating duplicate rows using DISTINCT

  • Restricting and Sorting Data

  • WHERE clause, wildcard like IN, LIKE

  • Analysing data using various SQL Operators

  • Sorting data  using ORDER BY clause

  • Using LIMIT Operator

  • Querying   Aggregated Data Using the Group Functions

  • AVG, COUNT, MIN, MAX...

  • Using GROUP BY and HAVING Clauses

  • Displaying Data From Multiple Tables

  • Analysing data Using Subqueries

  • Filtering data







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