What is a cross join in SQL?

The SQL CROSS JOIN produces a result set which is the number of rows in the first table multiplied by the number of rows in the second table, assuming no 'where' clause is used along with CROSS JOIN. This kind of result is also called as Cartesian Product. If, WHERE clause is used with CROSS JOIN, it functions like an INNER JOIN.

SELECT table112.id,table112.bval1,table112.bval2,  
table111.id,table111.aval1  
FROM table112  
CROSS JOIN table111;  

Invest now in Acorns!!! 🚀
Join Acorns and get your $5 bonus!

Acorns is a micro-investing app that automatically invests your "spare change" from daily purchases into diversified, expert-built portfolios of ETFs. It is designed for beginners, allowing you to start investing with as little as $5. The service automates saving and investing. Disclosure: I may receive a referral bonus.

Invest now!!! Get Free equity stock (US, UK only)!

Use Robinhood app to invest in stocks. It is safe and secure. Use the Referral link to claim your free stock when you sign up!.

The Robinhood app makes it easy to trade stocks, crypto and more.

Webull! Receive free stock by signing up using the link: Webull signup.