There are 2 tables. One table has missing values in columns. So how do you perform join operation between those 2 tables?

Data Science, AI and ML
#1

SQL Question

#2

We can use left join for that if there is something missing in the rows while taking left side the table which has no values.

#3

We can use left or full join to include all values from second or both the tables. Below are the examples how we can write this sql statement

Joining two tables: Order and Product

SELECT Order.OrderNr, Product.Name, Product.Price

FROM Order

LEFT JOIN Product ON Order.ProductId = Product.ProductId

OR

SELECT Order.OrderNr, Product.Name, Product.Price

FROM Order

FULL JOIN Product ON Order.ProductId = Product.ProductId