What are the SQL Cross Join, Inner Join, and Union Clause Statement Language Elements? (Part 8 of 8)

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▶ Check out the full blog post over at

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If you are just now joining along with this series of videos, please note that you are going to learn about SQL programming basics.

If you would like to follow along with us, please review the RealPars video, “How to install MySQL and import a sample database”, on how to download and setup MySQL database on your computer.

In this video, you will learn about some of the advanced SQL statements and clause commands for CROSS JOIN, INNER JOIN, and Union language elements.

To form an INNER JOIN, you will need a condition that is known as a join-predicate. An INNER JOIN requires rows in the two joined tables to have matching column values.
The INNER JOIN creates the result set by combining column values of two joined tables based on the join-predicate.

The INNER JOIN compares each row in the first table with each row in the second table to find pairs of rows that satisfy the join-predicate.

Whenever the join-predicate is satisfied by matching non-NULL values, column values for each matched pair of rows of these two tables are included in the result set.

The UNION operator allows you to combine two or more result sets of queries into a single result-set. This statement will eliminate duplicate rows.

The Drop Table statements will delete tables.

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To learn more about MySQL and additional SQL statements, visit the MySQL website:

Review the MySQL minimum hardware requirement web page here:

Download the MySQL Installer:

Download the sample database SQL file from here:

Download the sample database diagram file from here:

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Missed our most recent videos? Watch them here:

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How to Install MySQL and Import a Sample Database (Part 1 of 8)

What are SQL Programming Basics? (Part 2 of 8)

What are SQL Where and Like Statements Basics? (Part 3 of 8)

What are the SQL Order By Clause and Expression Statement Language Elements? (Part 4 of 8)

What are the SQL Inner Join, And, Or, Having and Between Clause? (Part 5 of 8)

What are the SQL Subquery and Exists Clause Statement Language Elements? (Part 6 of 8)

What is the SQL Create Table Clause Statement Language Element? (Part 7 of 8)

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#RealPars #SQL #MySQL

[Gibbo]

Thank you ! ! Please go ahead with this video series ! !

[tieliu]

This series is unbeatable in how easy to follow and understand. Incredibly great job!!! I appreciate it.

[mnada]

Great series, very informative, Thank you RealPars 👏

[bakytbekizgaliyev]

Hallo, thank you for useful video.
Can make a video about difference between SIS and ESD?

[lifeisgreat]

Have you stopped making such database series recently.
I see how much hardwork went into this one tho.

[farzadfani]

Please make a video on scripting in Visual Basic in SCADA and HMI - THANK YOU