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Hacker Rank 1: SQL query. Having a table with a column of amounts TV_2011 (or something like that) and amounts of TV_2012, latitude and longitude, make a sum of the 2012 amounts with some conditions: 1. Take the TV_2012 amount only if there is another TV_2011 amount similar to the one in the row being evaluated. 2. Don't take amounts TV_2012 amounts if there is a duplicated location (latitude, longitude). The sum should be rounded to 2 decimals.
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Data Engineer

Interviewed at Kueski

3.7★
Sep 4, 2017

Hacker Rank 1: SQL query. Having a table with a column of amounts TV_2011 (or something like that) and amounts of TV_2012, latitude and longitude, make a sum of the 2012 amounts with some conditions: 1. Take the TV_2012 amount only if there is another TV_2011 amount similar to the one in the row being evaluated. 2. Don't take amounts TV_2012 amounts if there is a duplicated location (latitude, longitude). The sum should be rounded to 2 decimals.

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