将当前月份的分区表中的数据插入到oracle中的非分区表中

Question

I have a backup table with partitions called as backup_audit. I need to insert the current month partition data into another non-partitioned table called as audit which has no data. How can we create a sql query to get the current month partition and load to the non-partitioned table?

Here is what I've tried (without success):

select partition_name
from dba_tab_partition
where partition_name in (
    select high_value
    from dba_tab_partition
    where table_name='table_backup' and high_value in (
        select to_char(sysdate, 'YYYYMM') from dual
    )
)

Answer 1

You don't need to reference partitions to select the current months data. Assuming that your backup_audit table is range partitioned by audit_date :

insert 
  into audit(col1, col2, col3, ColN)
select col1, col2, col3, ColN
  from backup_audit
 where audit_date >= trunc(sysdate, 'MM')
   and audit_date < last_day(trunc(sysdate)) + 1;