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Tag: Wick

Wick: A zero cost type safe Apache Spark API
2026-05-05

Apache Spark / Wick: Type-Safe Spark API

Whether you prefer writing queries in Spark SQL or you are more used to calling functions via the Dataframe API, it’s only a matter of time before you run into a classic problem.

Matěj Černý
Matěj Černý

Apache Spark

  • CSV file
  • Dataframe API vs. SQL
  • Procedural SQL
  • Wick: Type-Safe Spark API

PL/SQL by Examples

  • Anonymous Block and Branching
  • Scalar Data Types
  • Composite Data Types
  • FOR and WHILE loop
  • Procedures and Functions
  • Package
  • Exceptions
  • Savepoints
  • Object
  • Inheritance and Polymorphism

Oracle 12c

  • Querying from an associative array
  • User-defined function in the WITH clause
  • Top N rows, pagination
  • Cheat sheet / Oracle DDL operations

Links

  • Petr Stříbný
  • Josef Strzibny
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