DBMS_STATS.gather_table_stat will affect the performance of the database

Hi all

Please notify dbms_stats.gather_table_stat so on to materialize views will monopolize the database performance?

Hello

your question is not very accurate, it is not possible to answer more specifically. Collection of statistics requires resources, so it inevitably affects the activities of database performancewise. How it affects the rest of the database, is hard to say without knowing the parameters of the stats gathering work and the number and the size of scanned objects.

Once statistics are collected their effect is most likely beneficial for the performance, but in some cases the effect can be reversed. This depends on whether or not current performance problems are related or statistical, and whether or not the statistical model Oracle can adequately describe the distribution of the data.

Stats more important questions can help answer is whether an index can be beneficial for a query. So, if your MV index, then get specific statistics become even more important.

Best regards

Nikolai

Tags: Database

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