Tasks where the candidate faced failure and lessons learned.
SQLeasy
3
Tell us about a project where you optimized an existing process or pipeline. What was the impact?
SQLeasy
4
Teradata to Hadoop migration and handling data with SCD Type 2?
SQLmedium
5
Test SQL skills using advanced window functions such as LAG, LEAD, and DENSE_RANK.
SQLmedium
6
Time and cost comparisons for executing the same query in Snowflake and Spark.
SQLhard
7
Two tables: Table 1 has 8 records, Table 2 has 2 records, common column id. How many records would result with Inner Join, Left Join, Right Join, Full Outer Join?
SQLmedium
8
Use cases for internal staging in Snowflake?
SQLeasy
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