Pergunta de entrevista da empresa Synechron

Discussion started with ETL flow to SQL Queries. Testing questions were : difference between star and snowflax, ETL flow in current project. SQL questions were : Set operators, Difference between union and union all, Delete,drop and truncate. Asked to write queries on given scenarios. scenarios were based on Sub string, In string, Replace, Translate, Minus. Gave 3 select statements and asked how it works. group by and having function flow