Briefly Explain Different Keys in Database With Examples
Explain Database Scheme and Its. Alternate Key in Branch_Info table. Dbms Keys Primary Foreign Candidate And Super Key Javatpoint It is a set of one or more attributes that can uniquely identify tuples in a relation. . You may want to find all accounts in of a specific branch of ABC bank. Imagine you have a STUDENTS table that contains a record for each student at a university. The entity student ID is a key attribute because no other student will have the same ID. For example a table of customer orders might have a user column with a foreign key. Super Key is a set of properties within a table. It must also have atomicity ie. It is a set of attributes that uniquely identifies a row. Lets look at each of them separately. It can be divided into smaller sub parts each sub part can form an independent attribute. There may be more than candidate key and may be a combination of more than one at...