MySQL Database Management System > MySQL Joins

MySQL - Joins

23k

A JOIN clause is used to join rows from two or more tables together based on a common column.

MySQL joins can be divided into three categories:

  • INNER JOIN IN MySQL (or sometimes called a simple join)
  • MySQL OUTER LEFT JOIN (or sometimes called LEFT JOIN)
  • MySQL OUTER RIGHT JOIN (or sometimes called RIGHT JOIN)

The most common sort of join is the inner join. It's also the default join. Only records from database tables with matching values are selected using the inner join.

In a nutshell, you use ON for most things, but USING is a convenient shortcut for when the column names are the same. The ON keyword is used in the example above, but because the columns we're joining are called owners id in both databases, we may use USING instead.

The LEFT JOIN statement is similar to the JOIN statement in that it joins two tables together. The main distinction is that an LEFT JOIN statement contains all rows of the entity or table mentioned on the statement's left side.

Learner's Ratings

4.2

Overall Rating

  • 53%
  • 33%
  • 3%
  • 0%
  • 11%

Reviews

K
Karan kadam
5

thank you sir!!!

S
savnesh daksh
5

Good

S
Sparsh Gaur
4

arey kiske barabar

ARPIT ARORA
5

Error is 11:35:07 SELECT * FROM PRODUCTS group by PROD_CODE LIMIT 0, 1000 Error Code: 1055. Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'learn_vern.PRODUCT

S
Swapnil Chilwant
5

Well, a structured course, with amazing teaching techniques by meet shah sir Thank you, LearnVern team.

S
Sunil Bhargav
5

good

G
Ganesh Kandu
5

you didn't mentioned about self join

M
mukul kumar
4

please make a assignment solution video, explanation is very good

S
saurabh kushwah
5

Thank you LearnVern to teach us the best courses at no cost these courses are very amazing keep going and keep teaching as same as you doing. Please add DSA course also.

M
Manabendra Nath
4

Bahoot ascha samjhate hain lekin, thora sa slow samjhata hain jo thora booring lagte hain,(Just my opinion). Thank you.

Show More
Recommended Courses
Course Content
Enroll For Free