У меня проблема с DBMS_DATA_MINING.CREATE_MODEL на версии 11.2. В 10g этот код ниже работает нормально, и я уверен, что на 11.1 он тоже работает.
CREATE OR REPLACE VIEW "SH"."ITEMS" AS SELECT PROD_ID AS item FROM SALES GROUP BY PROD_ID;
CREATE OR REPLACE VIEW "SH"."TRANSACTIONS" AS SELECT "SH"."SALES"."PROD_ID" AS item , "SH"."SALES"."CUST_ID" tid FROM "SH"."SALES" where cust_id between 100001 AND 104500 GROUP BY cust_id, prod_id;
CREATE TABLE "SH"."AR_SETTINGS" ( "SETTING_NAME" VARCHAR2(30 BYTE), "SETTING_VALUE" VARCHAR2(128 BYTE) );
INSERT INTO SH.AR_SETTINGS (SETTING_NAME, SETTING_VALUE) VALUES ('ASSO_MAX_RULE_LENGTH', '6' );
INSERT INTO SH.AR_SETTINGS (SETTING_NAME, SETTING_VALUE) VALUES( 'ASSO_MIN_CONFIDENCE', TO_CHAR(0.7));
INSERT INTO SH.AR_SETTINGS (SETTING_NAME, SETTING_VALUE) VALUES( 'ASSO_MIN_SUPPORT', TO_CHAR(0.1));
BEGIN DBMS_DATA_MINING.CREATE_MODEL( model_name => 'AR_sh', mining_function => DBMS_DATA_MINING.ASSOCIATION, data_schema_name => 'sh', data_table_name => 'transactions', case_id_column_name => 'tid', settings_schema_name => 'sh', settings_table_name => 'ar_settings'); END;
причины:
ORA-40103: invalid case-id column: TID
ORA-06512: at "SYS.DBMS_DATA_MINING", line 1779
ORA-06512: at line 1
40103. 00000 - "invalid case-id column: %s"
*Cause: The column designated as case-id is not of one of CHAR, VARCHAR2,
NUMBER data type. Case-id columns of type CHAR and VARCHAR2 must
be of length less than or equal to 128 bytes.
*Action: Change the schema of your input data to supply a case-id column
of appropriate data type and/or length.
чтобы убедиться:
describe "SH"."TRANSACTIONS"
Name Null Type
--
ITEM NOT NULL NUMBER
TID NOT NULL NUMBER
и
select * from v$version;
возвращает:
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production
PL/SQL Release 11.2.0.1.0 - Production
CORE 11.2.0.1.0 Production
TNS for 64-bit Windows: Version 11.2.0.1.0 - Production
NLSRTL Version 11.2.0.1.0 - Production
Пример кода от dmardemo.sql вызывает ту же ошибку.
Я не знаю, что не так. Пожалуйста, помогите.