Udemy
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
Development
Web Development Data Science Mobile Development Programming Languages Game Development Database Design & Development Software Testing Software Engineering Software Development Tools No-Code Development
Business
Entrepreneurship Communication Management Sales Business Strategy Operations Project Management Business Law Business Analytics & Intelligence Human Resources Industry E-Commerce Media Real Estate Other Business
Finance & Accounting
Accounting & Bookkeeping Compliance Cryptocurrency & Blockchain Economics Finance Finance Cert & Exam Prep Financial Modeling & Analysis Investing & Trading Money Management Tools Taxes Other Finance & Accounting
IT & Software
IT Certifications Network & Security Hardware Operating Systems & Servers Other IT & Software
Office Productivity
Microsoft Apple Google SAP Oracle Other Office Productivity
Personal Development
Personal Transformation Personal Productivity Leadership Career Development Parenting & Relationships Happiness Esoteric Practices Religion & Spirituality Personal Brand Building Creativity Influence Self Esteem & Confidence Stress Management Memory & Study Skills Motivation Other Personal Development
Design
Web Design Graphic Design & Illustration Design Tools User Experience Design Game Design 3D & Animation Fashion Design Architectural Design Interior Design Other Design
Marketing
Digital Marketing Search Engine Optimization Social Media Marketing Branding Marketing Fundamentals Marketing Analytics & Automation Public Relations Paid Advertising Video & Mobile Marketing Content Marketing Growth Hacking Affiliate Marketing Product Marketing Other Marketing
Lifestyle
Arts & Crafts Beauty & Makeup Esoteric Practices Food & Beverage Gaming Home Improvement & Gardening Pet Care & Training Travel Other Lifestyle
Photography & Video
Digital Photography Photography Portrait Photography Photography Tools Commercial Photography Video Design Other Photography & Video
Health & Fitness
Fitness General Health Sports Nutrition & Diet Yoga Mental Health Martial Arts & Self Defense Safety & First Aid Dance Meditation Other Health & Fitness
Music
Instruments Music Production Music Fundamentals Vocal Music Techniques Music Software Other Music
Teaching & Academics
Engineering Humanities Math Science Online Education Social Science Language Learning Teacher Training Test Prep Other Teaching & Academics
Web Development JavaScript React Angular CSS Node.Js HTML5 PHP Vue JS
AWS Certification Microsoft Certification AWS Certified Solutions Architect - Associate AWS Certified Cloud Practitioner CompTIA A+ Amazon AWS Cisco CCNA Microsoft AZ-900 AWS Certified Developer - Associate
Microsoft Power BI SQL Tableau Data Modeling Business Analysis Business Intelligence MySQL Qlik Sense Blockchain
Unity Unreal Engine Game Development Fundamentals C# 3D Game Development C++ Unreal Engine Blueprints 2D Game Development Virtual Reality
Google Flutter Android Development iOS Development React Native Swift Dart (programming language) Mobile App Development Kotlin SwiftUI
Graphic Design Photoshop Adobe Illustrator Drawing Digital Painting Canva InDesign Character Design Procreate Digital Illustration App
Life Coach Training Neuro-Linguistic Programming Personal Development Personal Transformation Life Purpose Mindfulness Meditation CBT Cognitive Behavioral Therapy Sound Therapy
Entrepreneurship Fundamentals Business Fundamentals Freelancing Business Strategy Startup Business Plan Online Business Blogging Home Business
Digital Marketing Social Media Marketing Marketing Strategy Internet Marketing Google Analytics Copywriting Email Marketing YouTube Marketing Podcasting

DevelopmentDatabase Design & DevelopmentSQL

How to Extract Data from Multiple Oracle Tables Using SQL

Learn to use Table Joins to extract data from multiple tables
Rating: 3.6 out of 53.6 (7 ratings)
1,118 students
Created by Bluelime Learning Solutions
Last updated 6/2021
English
English [Auto]

What you'll learn

  • Download and Install Oracle Database
  • Download and install TOAD
  • Unlock Sample Schema and Tables
  • Understand Database Concepts
  • Extract data from multiple tables using Equi -Join
  • Extract data from multiple tables using Non-Equi Join
  • Extract data from multiple tables using Cartesian Join
  • Extract data from multiple tables using Self Join
  • Extract data from multiple tables using Outer Join

Requirements

  • You should be able to use a PC at beginner level
  • You should have a basic understanding of database concepts
  • You should know how to connect to a database

Description

There are times when the data you need to extract from a database are spread across multiple tables and the way to combine  the required data from multiple tables is via table joins. This beginners course will explain some of the types of table joins available in Oracle .

A join is a query that combines rows from two or more tables or views. Oracle Database performs a join whenever multiple tables appear in the FROM clause of the query. The select list of the query can select any columns from any of these tables. If any two of these tables have a column name in common, then you must qualify all references to these columns throughout the query with table names to avoid ambiguity.

There are certain conditions that has to be met before Joins can be implemented.
Most join queries contain at least one join condition, either in the FROM clause or in the WHERE clause. The join condition compares two columns, each from a different table. To execute a join, Oracle Database combines pairs of rows, each containing one row from each table, for which the join condition evaluates to TRUE. The columns in the join conditions need not also appear in the select list.

To execute a join of three or more tables, Oracle first joins two of the tables based on the join conditions comparing their columns and then joins the result to another table based on join conditions containing columns of the joined tables and the new table. Oracle continues this process until all tables are joined into the result. 

The types of joins we will cover include:

  •    Extracting data using Equi Join
  •    Extracting data using Non- Equi Join
  •    Extracting data using Cartesian Join
  •    Extracting data using Outer Join
  •    Extracting data using Self Join

Who this course is for:

  • Beginner Database Administrators
  • Beginner Data Analyst
  • Beginner Data Scientist
  • Beginner Data warehouse Engineeers

Instructor

Bluelime Learning Solutions
Learning made simple
Bluelime Learning Solutions
  • 4.1 Instructor Rating
  • 32,817 Reviews
  • 724,222 Students
  • 383 Courses

Bluelime is UK based and creates quality easy to understand  eLearning  solutions .All our courses are 100% video based. We teach hands –on- examples  that teach real life skills .

Bluelime has engaged in various types of projects for fortune 500 companies and understands what is required to prepare students with the relevant skills they need.

Top companies choose Udemy Business to build in-demand career skills.
NasdaqVolkswagenBoxNetAppEventbrite
  • Udemy Business
  • Teach on Udemy
  • Get the app
  • About us
  • Contact us
  • Careers
  • Blog
  • Help and Support
  • Affiliate
  • Investors
  • Impressum Kontakt
  • Terms
  • Privacy policy
  • Cookie settings
  • Sitemap
  • Accessibility statement
Udemy
© 2022 Udemy, Inc.