Explain the normalization of the database, joins, and keys.

The organization of data in a database in a systematic and efficient manner is known as Normalization. There are two goals of normalization, the first one is to remove the data redundancy( removing duplicate data) and the second one is to ensure that the data dependency makes sense( only storing the data that is relevant in the tables). Both of these goals are very important because if these goals are fulfilled then the database will take less space and it will ensure that only logical data is entered in it.