&gt; - What is DB indexing<p>Yeah I asked exactly same question, And instead of answering what it i, candidtate told me why they used it.<p>&gt; - Can you think of any impact when indexing in this situation<p>That&#x27;s Why I want to know if candidate understand what really index does, One cant tell a realistic answer of this question until S(h)e knows how index works.<p>&gt; - What are you general thoughts about indexing, can you think of an example when you used it and how it helped.<p>Even if one used it in some situation in pastm and it helped, I would consider it not enough as it could be possible S(h)e used it by reading some blog&#x2F;tutorial etc without understanding it fully, it&#x27;s like ok switch it off and on, did it work? well forget about it then.