FROM_VECTOR() and VECTOR_SERIALIZE() are synonymous serializers of vectors. The functions take a vector as input and return a string of type VARCHAR2 or CLOB as output.

• FROM_VECTOR
  FROM_VECTOR takes a vector as input and returns a string of type VARCHAR2 or CLOB as output.
• VECTOR_SERIALIZE
  VECTOR_SERIALIZE is synonymous with FROM_VECTOR.