Big Data Simplified

32 | Big Data Simplied

As shown in Figure 2.11, wide Column stores have tables. The tables do not belong to a data-

base and they have rows. The rows have super-columns or column families, and then columns

within them. So, the super-columns are dened when the table is dened. For the Customers

table, the super-columns are Name, Address and Orders. Then, on a row-by-row basis, the col-

umns or keys within those super-columns can be declared. So, in the above example, there is

First_Name and Last_Name within Name. Also, there is House_No and Street_Name within

Address and Last_Order_ID within Orders. On the Order side, there is a Pricing super ...