SQL Database Concepts Question:

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Please differentiate between DELETE and TRUNCATE?

Basic SQL Server Interview Question
Basic SQL Server Interview Question

Answer:

- Truncate can not be rolled back while Delete can be.
- Truncate keeps the lock on table while Delete keeps the lock on each row.
- Truncate resets the counter of the Identity column while Delete doesn't do so.
- Trigger is not fired in Truncate while it happens in Delete.

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Suppose you want to implement the following relationships while designing tables. How would you do it?
a.) One-to-one
b.) One-to-many
c.) Many-to-many
Do you know what are the properties of the Relational tables?