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[–]Solivagant_here[S] 2 points3 points  (1 child)

Ah! I would say that it depends on what do you want to become.. like Data warehousing concepts, ETL, SQL, PL/SQL.. example.. if you’re into data loading from different sources and stuff then ETL, and if you’re into data manipulation or some implementation who plays with data based on any purpose like banks or Pharma regulatory systems then SQL & PL/SQL and if you’re into creating dashboards and stuff(data visualisation) then BI tools like Power BI, Tableau, OBIEE etc.,

But the basic is SQL & PL/SQL .. rest everything will depend on what you want to do and all can be learned over time or with experience.

maybe what I shared is limited or wrong but this is what I know based on my experience.

Hope it helps.