Oracle Error Message
ORA-22317: typecode string is not legal as a number type
Reason for the Error
The user is trying to use a number typecode that is not valid.
Solution
Use only OCI_TYPECODE_SMALLINT, OCI_TYPECODE_INTEGER, OCI_TYPECODE_REAL, OCI_TYPECODE_DOUBLE, OCI_TYPECODE_FLOAT, OCI_TYPECODE_NUMBER, or OCI_TYPECODE_DECIMAL.