I also have an index ('WIPMON.KFLOWF_INDEX1') that is based on the table. The index is not partitioned. Yesterday I dropped the partition 200412 from the table.
But when I performed an insert into the table today, I got the following error
ORA-01502: index 'WIPMON.KFLOWF_INDEX1' or partition of such index is in unusable state
What could be the cause of the problem? Must I rebuild the related indexes after I drop any partition?