Can anyone please explain to me what it means to self-reference a table and why we do so. Whats the point of self referencing a table ?
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Can anyone please explain to me what it means to self-reference a table and why we do so. Whats the point of self referencing a table ?
Can you imagine an instance where there are gym member in a database. Some of the people are only gym members, while some people are gym members AND coaches.
So if in the database, there is a column for each member’s coach’s memberId, then the database will self reference itself when you use a memberId that is already in the database as the coach. That is a use of self-referencing.