Learn SQL Database from A to Z
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This database course teaches you everything you need to know about databases! You'll learn SQL and Database Design.
You'll learn all the necessary skills that prepare you for a high salary database job. In this course, I share my database expertise with you and give you the key to database industry! This course prepares to start your database career like a pro. Whatever you learn in this database course is applicable to Oracle, MySQL, Access, DB2, or the like. I testify this is the most comprehensive database course for beginners in udemy.
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The course costs $50 USD.
Please note section 4 is highly dependent on previous sections. Once you get familiar with previous sections, you can watch and practice section 4.
**** You can download the powerpoint slides from lecture #4 ********
Important note: section 1 includes very generic information. Feel free to skip it.
Warning: this database course is quite intensive and you have to watch them in sequence. I broke the course into many short videos to make it easier for you to understand the topics; however, whatever you learn in this course will remain with you for the rest of your life! You'll gain a priceless MUST-HAVE valuable database skills. Spend good time learning this course IN and OUT because this course PAYS OFF really well if you grasp it well.
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Certificate of completion.
|Section 1: Introduction to Databases (Very Basic Foundation)|
What is a Database?
Where to Store Data?
You do not have the right to change the powerpoint content and I hold no responsibility or liability for any changes you make to the powerpoint.
Database Skills vs. Database ToolsPreview
How to Store Data?
Why do We Use Databases?
What to Store in a Database? Part 1
What to Store in a Database? Part 2
What is Business Requirements?
What to Store in a Database? Part 3
Where Can you Create a Database?
Database Design vs. Database ImplementationPreview
Entities and Attributes
Example: Problem Statement
Demonstrate a Mockup Application
Why Design Phase? (Anomalies) - Part 1
Why Design Phase? Part 2Preview
|Section 2: Design Phase|
What is Normalization?Preview
Introduction to Keys
What is a Superkey?
Reminder: first name, last name, and email is not a Candidate Key because we can reduce the key to email
Superkey is every possible key out there the ones that can be reduced
What is a Primary Key (PK)?
What is an Alternative Key?
What is a Surrogate Key?
Note: In the first five seconds, the voice sounds as if it got cut in half when in fact its not. This problem was caused by audio issues.
Remove a Repeating Group
Review First Normal Form (1NF)
1NF Exercise - Part 1
1NF Exercise - Part 2
What is Second Normal Form (2NF)?
What is Third Normal Form (3NF)?
Important Note: Fourth Normal Form is listed under lecture 124 by the very end of the Physical Phase; I didn't create appendix section. Why did I move 4NF to lecture 124? 4NF+ is more theortical and may confuse you and distract you if I demonstrated it right after 3NF. Also, 4NF and above are supplementary and not mandatory.
The End of Normalization
Introduction to Relationships
What is One-to-Many Relationship?
What is Many-to-Many Relationship?
What is One-to-One Relationship?
What is Self-Reference Relationship?
What is an Extended One-to-One Relationship? - Part 1
What is an Extended One-to-One Relationship? - Part 2
Introduction to Entity Relationship Diagram (ERD)
How to Draw One-to-Many Relationship in an ERD? - Part 1
How to Draw One-to-Many Relationship in an ERD? - Part 2
How to Draw Many-to-Many Relationship in an ERD?
How to Draw One-to-One Relationship in an ERD?
How to Draw Self-Referencing Relationship in an ERD?
How to Draw Extended One-to-One Relationship in an ERD?
You can find lots of free youtube tutorials on how to design ERD on Microsoft Visio. For the time being, don't worry about designing ERD on MS Visio because it's luxury rather necessity. Anyhow, if still interested in MS Visio, here is few resources:
The End of Design Phase!
|Section 3: Physical Phase|
Introduction to the Implementation (Physical) PhasePreview
Install Oracle Database - Part 1Preview
Install Oracle Database - Part 2
Quick Tour on Oracle SQL Developer
What is SQL?Preview
How to Create a Data Table?
How to Insert Data into a Database?
What is SELECT Statement?
What is WHERE Clause?
What is AND Operator?
What is OR Operator?
What is IN Operator?
Multiple AND Operators
Mixture of Operators
What is a Function?
What is not Equal Operator?
What is an Alias?
How to Sort a Table?
What is BETWEEN Operator?
What is NOT Operator?
How to Find NULL Values?
What is Concatenation? - Part 1
CHAR vs. VARCHAR
What is Concatenation? - Part 2
Learn More about INSERT
Quick Review on Implementation Phase
The HR example is supported and provided by Oracle Corp.
Implement HR Schema - Part 1
Implement HR Schema - Part 2
Implement HR Schema - Part 3
Implement HR Schema - Part 4
Implement HR Schema - Part 5
Implement HR Schema - Part 6
Implement HR Schema - Part 7
Implement HR Schema - Part 8
How to Create a New User?
Run SQL Queries on HR Schema
How to Format Dates?
Mr. Eshaq is a proactive and versatile data analyst offering a diverse background in designing relational databases, writing ad-hoc SQL queries, scraping public data, developing software applications, and analyzing business requirements. He brings experience in design and implementation of technological solutions for business process enhancement. Mr. Eshaq areas of expertise are data analysis, systems analysis, and project management.