Question 51 2 pts Joining tables in a relational database means that: Key fields and foreign keys contain data that is always of the Text data-type We have no foreign keys At most, only 2 tables can be joined together Data from multiple tables can be combine into a single QBE query Question 52 2 pts What is a role of a foreign key? O It is a field that uniquely identifies a given record in a table. O Enables a pricing analyst to retrieve data from multiple tables in a single QBE query. Provide structure to unstructured data It is a unique way to identify each row in a table Question 53 2 pts Relational Databases help a company maintain TPS data that is: Easily queried using QBE. useful for making a cup of coffee in the morning. Unstructured and flexible. Complex with a single attribute being assigned many different data-types