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Join three tables in SQL. In this video, youll learn how to join three tables in SQL. Writing queries that involve three or more tables in SQL is something youll do quite often as you get more experienced with SQL. Doing it for the first time can seem hard, but once you understand how to do it, its a lot easier. Lets take a look at how its done. In SQL you join tables together to get data from each [inaudible] in your query. You need to join three tables together because the data you need is in three different tables. So how do you do it? The first step is to select your columns from the first table. This involves writing a select query with your columns and your table. In this example, were selecting some information from a book table. Step two is the join the second table, we do this by specifying the type of join after the from clause and then the table name. You can do either an inner join, a left join or a right join. There are a couple of other join types, but in most case
