1. When will you use cte vs subquery
Senior Data Engineer Interview Questions
2,447 senior data engineer interview questions shared by candidates
Lots of non-coding questions about past experiences and in-depth technical questions in the subject matter.
Basic understanding of Spark and the overall project architecture to see the use of Big Data tools. Differences between RDD, dataframe and datasets.
You can identify an inexperienced interviewer by observing how they formulate their questions.
SQL. 1. given a table t1(name, email) a. give percentage of records have email addresses(email could be null or non-null) b. give records start with 'a'.
Python, Sql & Databricks not much
conocimientos sobre modelado de datos?
ELT, how you will extract and stitch the data using microservices, airflow DAGs, operators.
Outcome of various joins using sample data.
In the given array, move all 0's to the end of it while maintaining the relative order of the non-zero elements.
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