Scenario based questions related to ETL and SQL. Questions on PL/SQL packages, Basics of Unix scripting Core concepts of Data warehousing.
Etl Developer Interview Questions
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Questions on UML diagrams
Basic questions on ETL and scenario based questions.
Difference between denormalized and normalized Data
Informatica scenarios were given to solve and mainly focused on Caches nd lookups.
Comprendere un pezzo di codice
Etl transformations, scd
Explain scd type 2 and find duplicates
Previous experience
SCD Types | Conditions in Router Types of LKP Types of Caches How did you optimise the performance? Listagg Set Operators Union and Union All results for scenario How to get non matching records? Types of JOIN Cross join count Analytics Functions SP vs Function Where did you use it in your project? How you design ETL Mapping? How to replace all words in a file in UNIX? Types of Schema Facts and Dimensions Documents prepared in your project Have prepraed LLD/HLD Scenario for LIKE Operator Prmary vs Unique Key How many nulls can unique key take? Subquerry vs Corelated Diff Rank Trans and USE Why you use Primary key in SCD 2? Parameters vs Variables Diff Types of threads generated in your mapping?
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