/* when block type is not found in v$waitclass then it's undo/rbs segement */

OBJN                      OTYPE FILEN BLOCKN SQL_ID        BLOCK_TYPE
------------------------- ----------- ------ ------------- ------------------
53218 BBW_INDEX_VAL_I     INDEX     1  64826 97dgthz60u28d data block 1
53218 BBW_INDEX_VAL_I     INDEX     1  64826 gypmcfzruu249 data block 1
53218 BBW_INDEX_VAL_I     INDEX     1  64826 2vd1w5kgnfa5n data block 1
53218 BBW_INDEX_VAL_I     INDEX     1  64826 3p3qncvp2juxs data block 1
53218 BBW_INDEX_VAL_I     INDEX     1  64826 6avm49ys4k7t6 data block 1
53218 BBW_INDEX_VAL_I     INDEX     1  64826 1hsb81ypyrfs5 data block 1
53218 BBW_INDEX_VAL_I     INDEX     1  64652 2vd1w5kgnfa5n data block 1
53218 BBW_INDEX_VAL_I     INDEX     1  64826 3p3qncvp2juxs data block 1
53218 BBW_INDEX_VAL_I     INDEX     1  64923 5wqps1quuxqr4 data block 1
53218 BBW_INDEX_VAL_I     INDEX     1  64826 6avm49ys4k7t6 data block 1
-1                                  0      0 fm7zcsnd5fud6  39
-1                                  0      0 3qrw5v6d6qj4a  39
53218 BBW_INDEX_VAL_I     INDEX     1  64825 2vd1w5kgnfa5n segment header 4
53218 BBW_INDEX_VAL_I     INDEX     1  64826 gypmcfzruu249 data block 1
53218 BBW_INDEX_VAL_I     INDEX     1  64826 5x0fksgfwkn6s data block 1
53218 BBW_INDEX_VAL_I     INDEX     1  64826 2vd1w5kgnfa5n data block 1