Howto setup and using incremental gather_table_stats

My friend Bernhard explains to me his issue using incremental gather_table_stats on a large partitioned table in a DWH. This table has only changes on a few partitions per day, normally the last two. I was looking for a solution that only  Weiterlesen

Droping a Table Column will generate a Hidden Column instead of removing them

This week a colleaque asked me for help while droping a table column. Inside of a PL/SQL procedure a table column has to be droped to prepare the table for an partition exchange. But while execute the partition exchange the Weiterlesen