Truncate table updating statistics

To enable a unique or primary key constraint, you must have the privileges necessary to create an index on the table.

You need these privileges because Oracle Database creates an index on the columns of the unique or primary key in the schema containing the table.

Name Is Enabled Interval(sec) Last Execution ---------------------------------------------------------------------------- Authorization 1 1800 2013-03-07 .530 Statistics -03-07 .850 Clear Authorization Cache -03-07 .850 I will monitor the Last execution tomorrow en in the beginning of next week.. If you choose to participate, the online survey will be presented to you when you leave the Technet Web site.

cannot be used on a table that has foreign-key references from other tables, unless all such tables are also truncated in the same command.

Of the 23 minute Maintenance Plan, Updating the Statistics takes a staggering 13 minutes.

Couple of minutes later the statistics were updated. Regards, EXLFH Microsoft is conducting an online survey to understand your opinion of the Technet Web site.

My Question Is: When should we be Updating the Statistics, and why?

This seems like the kind of thing we should do less frequently than every day.

I have a Data Mart data repository that is cleared out and populated with the latest data every night. It indicates to me that if the data is presorted on the CI, then have the CI in place before the bulk insert, otherwise create the CI (and NCIs) after the insert.

I am wondering the best way to handle the table's indexes with the TRUNCATE TABLE statement. Another slide indicates that you should drop and recreate all the indexes if the amount of data added exceeds the amount of existing data by 25%, although this slide may not be relevant if you are truncating the table first.

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The database does not readjust the high water mark and does not release the space immediately.

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