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this video presentation is based on the original PDF uploaded on eLearning good day everyone again I hope youre all safe and well welcome to part 5 the last part of this no SQL video series so lets get started now come store database stores data using column oriented model now data is stored in cells grouped in columns of data rather than as rows of data they use the concept of key space its kind of like a schema in a relational model so in a relational model schemas give us a view or structure of the entire database in a column store database a key space here a key space will give us an idea of the entire structure of these columns to our database now a key space contains column families so here are column families here in this example key space 1 2 3 4 5 column families now count families here are kind of like tables in a relational model column families contain rows so these are bros and within each row there are columns as expressed in this example here now examples of columns