Oracle 9.2 - using IMP with rows=n...how come the USERS.dbf datafile grew to 7GB and there is no data in any tables?
Posted on 2007-08-09
I recevied an export DMP file that was created with rows=n. I am importing that DMP file via IMP and my USERS datafile starts at .5 GB and after the IMP is done with ROWS=N (no data), the datafile grew to 7GB.
When you look at the stats, it shows Rows for most tables as >0, indicating there are rows in the tables, but when you do SELECT COUNT(1) there are none. A COMPUTE STATISTICS then calcs all those Rows as 0, proving there is no data in the tables, but yet the datafile still sits at 7GB. Why does it grow during IMP when there is no data being imported?