The SET_TRANSFORM procedure adds a single transformation record to a transformation list.
DBMS_DATA_MINING_TRANSFORM.SET_TRANSFORM (
xform_list IN OUT NOCOPY TRANSFORM_LIST,
attribute_name VARCHAR2,
attribute_subname VARCHAR2,
expression VARCHAR2,
reverse_expression VARCHAR2,
attribute_spec VARCHAR2 DEFAULT NULL);
SQL expressions that you specify with SET_TRANSFORM must fit within a VARCHAR2. To specify a longer expression, you can use the SET_EXPRESSION procedure, which builds an expression by appending rows to a VARCHAR2 array.