WebJan 25, 2004 · Loss of data, not likely. DB corruption , possible. I have run into database crashes when using dbms_stats.gather_schema_stats with 'GATHER AUTO' option under 9.0.1 Of course, it was in a test database and problem was resolved by upgrading before rolling out to prod. I guess that's what Tom meant by "Caution". WebAug 5, 2024 · To gather stats in oracle we require to use the DBMS_STATS package.It will collect the statistics in parallel with collecting the global statistics for partitioned objects.The DBMS_STATS package specialy used only for optimizer statistics. As i explained in first paragraph the dbms_stats is very vital for good SQL performance.
Best Practices for Gathering Optimizer Statistics with Oracle Database …
WebSep 24, 2024 · Oracle's collateral recommends that you use the default ESTIMATE_PERCENT. In other words, leave the parameter unset (if you have not overridden the default) or explicitly set it to DBMS_STATS.AUTO_SAMPLE_SIZE. Nevertheless, I have heard that some people use a value of 100 to sample all rows. WebSep 2, 2008 · Automatic Statistics Collection Tom -In Oracle 11g, there has been a restructuring of the job scheduling framework. In particular, the automatic gathering of optimizer statistics. In Oracle 10g, the following query reveals the association of the program GATHER_STATS_PROG with a job GATHER_STATS_JOB. In Oracle 11g, that … can a credit card be closed due to inactivity
ORACLE-BASE - Refreshing Stale Statistics
WebMay 14, 2024 · 1.) ANALYZE table is an old method of gathering stats and the optimizer doesn't use it anymore? is it true that the stats from this command is useless throughout the DB or is it being used somewhere? 2.) Instead of doing all this, it is enough to daily run: dbms_stats.gather_schema_stats (xxSchemaxx,cascade=>true); WebJan 25, 2004 · Loss of data, not likely. DB corruption , possible. I have run into database crashes when using dbms_stats.gather_schema_stats with 'GATHER AUTO' option under … WebAug 24, 2024 · If the problem is only related to a small number of tables with a large number of partitions, you can manually gather the stats on just that table in a separate session. Once the stats are gathered, the table won't be analyzed again until about 10% of the data is changed. begin dbms_stats.gather_table_stats (user, 'PGA_STATS_TEST'); end; / can a crawl space be turned into a basement