Intelligence Interview Questions

6,938 intelligence interview questions shared by candidates

Round1: partioning/indexing? adding column in a table without taking table offline? types of joins? cross join? write sql queries on rank over partition by, having count(*)>1, count(distinct ), SQL intersect star schema? what is upsert? delete/truncate difference? Round2: more and more details on partitioning? partition keys? partition pairing? partitioning with merge concept? diff btw primary keys and partition keys? upsert concept..whats required for upsert? how does it work? how to update primary key in a table with upsert? SQL Intersect concept whats cartesian product.. when are cross joins used? Table A has 2 rows; Table B has 3.. whats the cartesian result? Have you designed star schema?
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Business Intelligence Engineer

Interviewed at Amazon

3.5
Feb 17, 2015

Round1: partioning/indexing? adding column in a table without taking table offline? types of joins? cross join? write sql queries on rank over partition by, having count(*)>1, count(distinct ), SQL intersect star schema? what is upsert? delete/truncate difference? Round2: more and more details on partitioning? partition keys? partition pairing? partitioning with merge concept? diff btw primary keys and partition keys? upsert concept..whats required for upsert? how does it work? how to update primary key in a table with upsert? SQL Intersect concept whats cartesian product.. when are cross joins used? Table A has 2 rows; Table B has 3.. whats the cartesian result? Have you designed star schema?

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