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QUESTION 2 4 What is true of foreign keys. Select the best answer from the following. A . A foreign is created by giving it
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What is true of foreign keys. Select the best answer from the following.
A A foreign is created by giving it the same name as the column that it matches in the primary parent table. The DBMS automatically links the tables based on the column names.
B A foreign key is a column or columns whose value is the same as the primary key of another table in the database. In some cases, a foreign key can be created within the same table as primary key, but this is rare.
C A foreign key is a hidden column in a table that contains multiple pieces of information so that two or more tables can be related together
D Foreign keys are not used in relational database design.
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