Selecting data from more than 2 tables or three tables using mysql joining

Here i am writing mysql joining query for fetching data from three tables, Some time we looking for fetch data from more then one or two tables separately for that some developer using nested queries means query inside query but this is not right way to do this.
Here i taking three different name of tables such as 1. posts 2. users 3. category
Using that tables i am fetching data post detail, according to author id fetching name of author from users table and fetching category name from category table using category id, below is mysql joining query for fetching data from three tables.

Table one “posts”

idtitlecategory_idauthor_id
1Post title one11
2Post title two22
3Post title three12
4Post title four21

Table one “category”

idcat_name
1category one
2category two

Table one “users”

iduser_name
1user one
2user two

MySql Joining Query

"SELECT p.id, p.title, c.cat_name, u.user_name FROM posts p INNER JOIN category c ON (c.id = p.category_id) INNER JOIN users u ON (u.id = p.author_id)"

Result/Output of mysql joining query

idtitlecat_nameuser_name
1Post title onecategory oneuser one
2Post title twocategory twouser two
3Post title threecategory oneuser two
4Post title fourcategory twouser one

Author: Mukesh Jakhar

This is Mukesh Jakhar. I’m a professional web developer with 3+ years experience. I am always ready for freelance work and i am writing blogs in my free time. I love to learn new technologies and share with others.
I founded PHPKIDA in September 2015. The focus of this website to provide web development tutorials of PHP, WordPress, CodeIgniter, Jquery, MySQL, HMTL, CSS etc and sharing solution of problems which i already solved.

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