oracle table analyze rebuild index

//index info
select i.index_name,
i.distinct_keys, i.num_rows
  from user_indexes i, user_ind_columns c
where i.index_name = c.index_name
   and c.table_name = upper('reps_sla_item')


//rebuild index  
alter index sys_c0066955 rebuild  

//analyze table
analyze table reps_sla_item estimate statistics sample 30 percent;