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Oracle® Database Reference
12c Release 1 (12.1)

E41527-13
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ALL_MINING_MODEL_ATTRIBUTES

ALL_MINING_MODEL_ATTRIBUTES describes the attributes of the mining models accessible to the current user. Only the attributes in the model signature are included in this view. The attributes in the model signature correspond to the columns in the training data that were used to build the model.

Mining models are schema objects created by Oracle Data Mining.

Related Views

Column Datatype NULL Description
OWNER VARCHAR2(128) NOT NULL Owner of the mining model
MODEL_NAME VARCHAR2(128) NOT NULL Name of the mining model
ATTRIBUTE_NAME VARCHAR2(128) NOT NULL Name of the attribute
ATTRIBUTE_TYPE VARCHAR2(11)   Logical type of the attribute. The type is identified during the model build or apply process:
  • NUMERICAL - Numeric data

  • CATEGORICAL - Character data

  • TEXT - Unstructured text data

DATA_TYPE VARCHAR2(106)   Data type of the attribute
DATA_LENGTH NUMBER   Length of the data type
DATA_PRECISION NUMBER   Precision of a fixed point number. Precision, which is the total number of significant decimal digits, is represented as p in the data type NUMBER(p,s).
DATA_SCALE NUMBER   Scale of a fixed point number. Scale, which is the number of digits from the decimal to the least significant digit, is represented as s in the data type NUMBER(p,s).
USAGE_TYPE VARCHAR2(8)   Indicates whether the attribute was used to construct the model (ACTIVE) or not (INACTIVE). Some attributes may be eliminated by transformations or algorithmic processing. The *_MINING_MODEL_ATTRIBUTES view only lists the attributes used by the model, therefore the value of this column is always ACTIVE.
TARGET VARCHAR2(3)   Indicates whether the attribute is the target of a predictive model (YES) or not (NO). The target describes the result that is produced when the model is applied.
ATTRIBUTE_SPEC VARCHAR2(4000)   One or more keywords that identify special treatment for the attribute during model build. Values are:
  • FORCE_IN - (GLM only) When feature selection is enabled, forces the inclusion of the attribute in the model build. Feature selection is disabled by default. If the model is not using GLM with feature selection enabled, this value is ignored.

  • NOPREP - When ADP is on, prevents automatic transformation of the attribute. If ADP is not on, this value is ignored.

  • TEXT - Causes the attribute to be treated as unstructured text data. The TEXT value supports three subsettings: POLICY_NAME, MAX_FEATURES, and TOKEN_TYPE. Subsettings are specified as name:value pairs within parentheses. For example: (POLICY_NAME:mypolicy)(MAX_FEATURES:2000)(TOKEN_TYPE:THEME). See Oracle Data Mining User's Guide for details.

  • NULL - The ATTRIBUTE_SPEC for this attribute is NULL.

    ATTRIBUTE_SPEC is a parameter to the PL/SQL procedure DBMS_DATA_MINING_TRANSFORM.SET_TRANSFORM. See Oracle Database PL/SQL Packages and Types Reference for details.