Introduction to Data Extraction Using SQL

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