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like so
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```python
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Userwill be found in the user table, etc). This also can enable you to (if you want it) generate a user-unique ID for all your admins/teachers/students, so you don't run into cases where all three tables have overlapping ID values; which will significantly simplify any user-oriented logic that you wish to write that relies on a given ID without needing to guess which table it might be from.