Generic delta queue for CDHDR

Question

Hi,
Has anyone used the function module to create a generic delta queue to work for extracting data from tables CDHDR and CDPOS when using the UDATE as the change date? I was able to find an alternate solution to extracting the data from these tables, but the solution is not approved, and it is suggested to use the function module and use a changed date to create the generic delta queue from RSO2.
Please advise.
Thank you

Answer 1

Hi Siggi,
Thank you for your insight on this. Well, UDATE is the changed date in the table CDHDR, and I am wondering if that should be used to provide to the RSO2 setup and set the interval to 1 day. I am extracting this UDATE to my extract structure.
Here is what I have in the FM and I am loading right now. I provided the date range to the 'Data Selection' tab for a complete year, which should only be 100K records but it is now extracting up to 17M records and still going. I am not sure if I should stop the load because it seems that it is loading the complete table CDHDR which is 80M.
Here is my code form my FM:
Fill range tables BW will only pass down simple selection criteria
of the type SIGN = 'I' and OPTION = 'EQ' or OPTION = 'BT'.
      LOOP AT S_S_IF-T_SELECT INTO L_S_SELECT WHERE FIELDNM = 'UDATE'.
        MOVE-CORRESPONDING L_S_SELECT TO L_R_UDATE.
        APPEND L_R_UDATE.
      ENDLOOP.
Determine number of database records to be read per FETCH statement
from input parameter I_MAXSIZE. If there is a one to one relation
between DataSource table lines and database entries, this is trivial.
In other cases, it may be impossible and some estimated value has to
be determined.
      OPEN CURSOR WITH HOLD S_CURSOR FOR
     SELECT (S_S_IF-T_FIELDS) FROM CDHDR
                              WHERE UDATE  IN L_R_UDATE
                              AND   OBJECTCLAS ='ORDERBUCH'.
  SELECT OBJECTID CHANGENR USERNAME UDATE UTIME OBJECTCLAS TCODE
         FROM CDHDR
      WHERE UDATE  IN L_R_UDATE
      AND   OBJECTCLAS ='ORDERBUCH'.
I have the other SELECT commented out because I was getting an error dump on the R3 side saying "One of the field names in the SELECT clause was not recognized.", referring to statement "OPEN CURSOR WITH HOLD S_CURSOR FOR", so I am using the other SELECT that is not commented out.
I think I am following what you are referring to about the SELECT but not quite completely. What would you suggest to rewrite for the UDATE issue to process both the Full and Delta data?
Thank you