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in this video well be taking a look at what joining data actually means and the way different join types work when it comes to the relational data model lets dive in hello and welcome to vitamin bi bringing you business intelligence for beginners and beyond my names adam and on this channel i help you do more with data so if youre new here please do subscribe okay so lets start off by talking about the relational data model because itll give you much more context when we move on to talking about how joining data works in a minute ive briefly touched on the relational model in other videos and ill leave a link to them in the description but basically a relational database contains lots of data sets in what are called tables because theyre in a tabular rows and columns format like you find in a spreadsheet the reason its called relational is that each table usually although not always has a relationship to one or more other tables in the database this relationship takes the for