input: from typing import List
  
  
  def sql_operation_available(operations: List[str]) -> bool:
      """ Check if given list of operations contains standard SQL CRUD operations:
      Create, Read, Update and Delete.
      >>> sql_operation_available(["Create", "Read"])
      False
      >>> sql_operation_available(["Create", "Read", "Update", "Delete"])
      True
      """
output:     required_operations = {"Create", "Read", "Update", "Delete"}
      return required_operations.issubset(set(operations))