Skip Headers
Oracle® Database SQL Language Reference
11g Release 2 (11.2)

Part Number E10592-04
Go to Documentation Home
Home
Go to Book List
Book List
Go to Table of Contents
Contents
Go to Index
Index
Go to Master Index
Master Index
Go to Feedback page
Contact Us

Go to previous page
Previous
Go to next page
Next
View PDF

PREDICTION_DETAILS

Syntax

Description of prediction_details.gif follows
Description of the illustration prediction_details.gif

mining_attribute_clause::=

Description of mining_attribute_clause.gif follows
Description of the illustration mining_attribute_clause.gif

Purpose

This function is for use with decision tree models created by the DBMS_DATA_MINING package or with the Oracle Data Mining Java API. It returns an XML string containing model-specific information related to the scoring of the input row. In this release, the return value takes the following form:

<Node id= "integer"/>

where integer is the identifier of a data mining tree node. The form of the output is subject to change. It may be enhanced to provide additional prediction information in future releases.

The mining_attribute_clause behaves as described for the PREDICTION function. Refer to mining_attribute_clause.

See Also:

Example

The following example uses all attributes from the mining_data_apply_v view that are relevant predictors for the DT_SH_Clas_sample decision tree model. For customers who work in technical support and are under age 25, it returns the tree node that results from scoring those records with the DT_SH_Clas_sample model.

This example, and the prerequisite data mining operations, including the creation of the view, can be found in the demo files $ORACLE_HOME/rdbms/demo/dmdtdemo.sql. General information on data mining demo files is available in Oracle Data Mining Administrator's Guide. The example is presented here to illustrate the syntactic use of the function.

SELECT cust_id, education,
   PREDICTION_DETAILS(DT_SH_Clas_sample using *) treenode
   FROM mining_data_apply_v
   WHERE occupation = 'TechSup' AND age < 25
   ORDER BY cust_id;

   CUST_ID EDUCATION             TREENODE
---------- --------------------- -------------------------
    100234 < Bach.               <Node id="21"/>
    100320 < Bach.               <Node id="21"/>
    100349 < Bach.               <Node id="21"/>
    100419 < Bach.               <Node id="21"/>
    100583 < Bach.               <Node id="13"/>
    100657 HS-grad               <Node id="21"/>
    101171 < Bach.               <Node id="21"/>
    101225 < Bach.               <Node id="21"/>
    101338 < Bach.               <Node id="21"/>
 
9 rows selected.