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This is about MySQL question, please show me the answers. About Cardinality and Participation: To summarize, you need to ask 2 questions when presented with
This is about MySQL question, please show me the answers.
About Cardinality and Participation: To summarize, you need to ask 2 questions when presented with an ERD related task for any two entities called Entity1 and Entity2 in a relationship R. We use the word "instance" to mean rows of a table for that Entity. 1. An instance of Entity1 is in relation R to maximuminstances of Entity2. The number that can fill this blank is called cardinality of Entity1 to Entity2 and is shown as a number/variable on the other side of the relation diamond, ie. the side near Entity2. 2. Can an instance of Entity1 exist without being related to an instance of Entity2? If the answer is yes, then this partial participation is depicted by drawing a single line between Entity1 and the relationship diamond. If the answer is no, it's called total participation and is shown by drawing a double/bold line instead. These lines are on the same side as the Entity1 entity Then, repeat the same question for the Entity2 to complete the diagramStep by Step Solution
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