Problem with cdc when we altering the source table;

  • Hello DBAs!

    Am facing the problem when I adding or altering the columns in source table.. its not getting reflected in cdc that corresponding table automatically... but previous months it was working fine.. but I could not see any error logs..

    I would like to know why this ddl changes are not get reflected in cdc table?

    Is there any root cause..plz let me know you suggestions 🙂

    Thanks in advance

  • Works as intended.

    An added column will not be included in an existing cdc table.

    A deleted column will result in NULL in the corresponding column in cdc.

    Only solution is to create a second cdc on that table (mind you: max 2 cdc per table)

  • But without creating one more instance, previously it added the new column in to CDC tables.. how it was? I cant digest the behavior of CDC?

  • Saravanan_tvr (10/15/2013)


    But without creating one more instance, previously it added the new column in to CDC tables.. how it was? I cant digest the behavior of CDC?

    When you remember how you succeeded in doing so, please post it here. As far as I know it is not possible (but if it is, I like to learn).

  • Yes I digged previois year history of ddl changes in source table.. that they did not added newinstance or disable and enable technique... but now I cant reproduce it....

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