btec ict level 3 national extended certificate
Hi for unit 2 in this course for the ER diagrams can anyone brush up some confusion I have please?
when doing the ER diagrams and you decide to make a one to many relationship between two tables do you put the primary key from the first table into the second table as a foreign key? and do you do the same if it's a one to one relationship?
when doing the ER diagrams and you decide to make a one to many relationship between two tables do you put the primary key from the first table into the second table as a foreign key? and do you do the same if it's a one to one relationship?
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