ORA-51809
Invalid data type data_type used for FROM_VECTOR() or VECTOR_SERIALIZE() function in RETURNING clause. Must be VARCHAR, VARCHAR2, or CLOB.
- data_type: The data type specified by the user.
Cause
The data type used for FROM_VECTOR() or VECTOR_SERIALIZE() function in the RETURNING clause is invalid.
Action
Ensure that the correct data type is used in the RETURNING clause for FROM_VECTOR() or VECTOR_SERIALIZE() function. The correct syntax is FROM_VECTOR | VECTOR_SERIALIZE(vector RETURNING <VARCHAR | VARCHAR2 | CLOB>).