Execute CDC mappings from a PL/SQL procedure

Question

Hi,
I´m using OWB 11.2.0.2 for Linux. I´ve created some CDC mappings to update cubes with changes coming from other tables and cubes (from the tables that implement those cubes with the relational option). The issues are:
- The CDC mappings run successfully from the OWB (Project Navigator - Start), but I cannot execute them from a procedure in PL/SQL with the following code:
PROCEDURE "PROC_RUNCDCMAPPINGS" IS
--inicializar variables aquí
RetVal NUMBER;
P_ENV WB_RT_MAPAUDIT.WB_RT_NAME_VALUES;
-- ventana principal
BEGIN
RetVal:= BARIK.CDC_LOAD_CUBO_RECARGA.MAIN(P_ENV);
RetVal:= BARIK.CDC_LOAD_CUBO_TOR.MAIN(P_ENV);
RetVal:= BARIK.CDC_LOAD_CUBO_TOAE.MAIN(P_ENV);
RetVal:= BARIK.CDC_LOAD_CUBO_VIAJES.MAIN(P_ENV);
RetVal:= BARIK.CDC_LOAD_CUBO_TICKETINCIDENCIA.MAIN(P_ENV);
RetVal:= BARIK.CDC_LOAD_CUBO_LIQMONEDERO.MAIN(P_ENV);
RetVal:= BARIK.CDC_LOAD_CUBOS_LIQTEMPORALES.MAIN(P_ENV);
COMMIT;
END;
It doesn´t report any error (the value for RetVal after execution is 0), but the cubes are not loaded with changes, and the changes stored in the J$_%tables are not consumed.
Some of the options that may impact in the mappings are:
- All the CDC are of Simple type
- There are more than one subscriber to consume the changes, as for some tables, its changes must feed more than one CDC.
- All the mappings include only one execution unit per mapping.
- The integration/load template is the default: DEFAULT_ORACLE_TARGET_CT
Other question is: As I explained, I need more than one subscriber because same updates must be consumed by different CDC mappings, to load different cubes, but I´ve not been able to assign the subscribers to only the tables associated with them, so all the subscribers are subscribed to all the changes in all the CDC tables, but as many of those subscribers never consume the changes of same tables, in the J$_% tables remains the not consumed records, and I haven´t found the way to purge those tables (other than the delete from J$_), nor to assign the tables with the subscribers (so the subscribers are only subscribed to their interested changes, that will be consumed, so the tables will be emptied after the consumption).
Any help with these problems will be greatly appreciated.
Tell me if more info is needed to clarify the situation.
Best regards,
Ana

Answer 1

Hi David,
Thank you for your reply.
These mappings are the mappings needed to update the cubes with the changes detected by the CDC system, they are located under the Mapping Templates folder and I´m using code templates for the control of the loading and the integration (the DEFAULT_ORACLE_TARGET_CT) mapping.
What I need is to execute these mappings within a PL/SQL procedure that will be invoked from different tools.
I´ve done it for regular mappings (not CDC mappings), and it works. The code is the same as for the CDC ones:
PROCEDURE "PROC_RUNLOADMAPPINGS" IS
--inicializar variables aquí
RetVal NUMBER;
P_ENV WB_RT_MAPAUDIT.WB_RT_NAME_VALUES;
-- ventana principal
BEGIN
RetVal:= BARIK.LOAD_CUBO_RECARGA.MAIN(P_ENV);
RetVal:= BARIK.LOAD_CUBO_TOR.MAIN(P_ENV);
RetVal:= BARIK.LOAD_CUBO_TOAE.MAIN(P_ENV);
RetVal:= BARIK.LOAD_CUBO_VIAJES.MAIN(P_ENV);
RetVal:= BARIK.LOAD_CUBO_TICKETINCIDENCIA.MAIN(P_ENV);
COMMIT;
END;
-- End of PROC_RUNLOADMAPPINGS;
,and when I run it, the mappings are executed, but with the CDC ones it doesn´t (even when no error is reported).
I know that they are deployed in the selected agent (in my case the Default_Agent), but when I start them from the OWB, the mapping packages are created in the DB schema, so, I thought that maybe I could invoke them....so what you tell me is that the only way to invoke them is from SQL*Plus? not from a regular PL/SQL procedure?
Thank you very much,
Ana