oracle - DBMS_DATA_MINING.CREATE_MODEL在11.2.0.1.0 64b上导致 "ORA-40103: invalid case-id column: TID"，但在10g上确定

Question

我在版本11.2上的DBMS_DATA_MINING.CREATE_MODEL有问题。在10g上，下面的代码可以正常工作，而且我很确定在11.1上也可以。

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;

原因:

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.

为了确定:

describe "SH"."TRANSACTIONS"
Name Null Type 
--
ITEM NOT NULL NUMBER 
TID NOT NULL NUMBER

和

select * from v$version;

返回:

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

dmardemo.sql中的The sample code会导致相同的错误。
我不知道怎么了请帮忙。

Answer 1

您的代码和示例都对我有用。我也使用11.2.0.1.0，除了我使用的是32位而不是64位。

我不确定这是什么意思。也许您的安装有问题？您可能想看看Verifying Your Data Mining Installation。