Describe different JOINs in SQL.
Having a categorical variable with thousands distinct values, how would you encode it?
How to find linear trends in time series.
How to find the flow in a matrix showing temperature.
...

Question

Describe different JOINs in SQL.
Having a categorical variable with thousands distinct values, how would you encode it?
How to find linear trends in time series. 
How to find the flow in a matrix showing temperature.
...

Anonymous · Accepted Answer

I replied all the questions with confidence. The two phone interviewers were very nice and did not hesitate to explain again/more each question.

Ankit Sharma · Answer

You can use mean encoding  technique for encoding.

Anonymous · Answer

Having a categorical  variable with thousands distinct values, how would you encode it ?

Can you please answer this ?

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