Oracle database is one of the top and most widely used relational database management systems in the world .
This beginners course will teach you how to retrieve data from an oracle database.

We will start off by downloading and installing oracle  database 11g express which is free to use. Then we will install TOAD which is a tool we will be using to connect to the oracle database and retrieve data.

Topics we will cover in this course includes:

Retrieving Data 
Using SELECT Statements
Using FROM clause
Using WHERE Clause for filtering data
Using NOT Operator
Using the LIKE Operator
Using IS NULL
Using ORDER BY Clause
Using DISTINCT
Using Describe
Using and creating views
Using Sub-Query
Restricting and Sorting Data
Using ORDER BY Clause
Using GROUP BY and HAVING Clause

Retrieving Data with Aggregate Functions 
Introduction to aggregate functions
Using AVG function
Using COUNT function
Using MAX function
Using MIN function

Retrieving Data with Table Joins
Introduction to Table Joins
Using Equi Joins
Using Non Equi Joins
Using Cartesian Join
Using Outer Join
Using Self Join

Retrieving Data with Analytic Functions 
Introduction to Analytic Functions
The Syntax
Partition By Clause
First and Last Function
Row number Functions
Dense Rank Function
Lag Function
LEAD Function
RANK Function

Retrieving Data with SET Operators 
Using UNION ALL SET Operator
UNION SET Operator
Using INTERSECT Operator
Using Minus Operator

 By the end of this course you will have enough skill to retrieve data from an oracle database.