Does Dropping Primary Key Drop Non-Clustered Index on the Column? – Interview Question of the Week #085

Question: When we drop primary key on the column, does it automatically drop a non-clustered index on the same column (if created)?

Before we see answer of this question, I suggest you read following three blog posts, they discuss various similar aspects related to the primary key and clustered index.

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Does Dropping Primary Key Drop Clustered Index on the Same Column? – Interview Question of the Week #082

Question: When we drop primary key on the column, does it automatically drop a clustered index on the same column (if created)?

Answer: This is one of the most popular questions, whenever I ask this to any candidate, they usually give an answer in yes or no. However, if I ask them follow up question to confirm, I have noticed most of the time they change the reply or accept that they really do not know the answer. It is totally fine. As when I was beginning with SQL, I even did not know the answer of it. I learn doing various experiments and doing various interviews.

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