Two tables join in mysql what object

17.02.2019 Kristin

As i said it can be extremely confusing to understand join of three or more tables. Sometimes in a single query, it is required to join different tables based on a condition in one of the tables. For example, you need to get all persons participating in a contest as individuals or as members of a team.

The two tables we will be using relate to a families eating habits. In the case of joining three tables table, 1 relates to table 2 and then table 2 relates to table. And you learning for created a joined table. The join condition follow in the table or a database for joining into a two or more tables into a single table. What is mysql join table setup.

And after joining a two table in mysql database and after created a single table. In this database we like to show examples and code before we explain anything in detail, and after so here is how you would combine two tables into one using mysql. Most of the times we only join two tables like employee and department but sometimes you may require joining more than two tables and a popular case is joining three tables in sql. So my expected output records will contain 5 rows not 6 rows.

If you look at closely you find that table 2 is a joining table which contains primary key from both table 1 and table.