|
-
Answering the first question, impdp does not performs a restore but an import. A restore implies that the datafiles are physically indentical, impdp cannot offer that certainty.
In regards to the actual issue please do this. Before executing you process check the statistics of all involved tables, the data you want to catch is num_rows, sample_size and last_updated. If you see different values for any of these three attributes when slow and fast processes happens it means that a process is gathering statistics then causing Oracle to choose a different execution plan.
Pablo (Paul) Berzukov
Author of Understanding Database Administration available at amazon and other bookstores.
Disclaimer: Advice is provided to the best of my knowledge but no implicit or explicit warranties are provided. Since the advisor explicitly encourages testing any and all suggestions on a test non-production environment advisor should not held liable or responsible for any actions taken based on the given advice.
Posting Permissions
- You may not post new threads
- You may not post replies
- You may not post attachments
- You may not edit your posts
-
Forum Rules
|
Click Here to Expand Forum to Full Width
|
Reply With Quote