This question is about computing statistics at the schema level (11g).Where are the schema level statistics stored .where can i retrieve the details of schema level statistics?and what is next step after gathering the statistics?
what i tried so far?
BEGIN
DBMS_STATS.gather_schema_stats
('staging'
,estimate_percent => 20
,method_opt => 'FOR ALL INDEXED COLUMNS SIZE 1'
,block_sample => FALSE
,DEGREE => 32
,GRANULARITY => 'ALL'
,CASCADE => TRUE);
END;
/
what is the next step after this
Gathering statistics at the schema level means you have stats for all the tables in the schema (and all the indexes, because CASCADE=>true
). So you can find the values by querying the relevant data dictionary views (USER_TABLES, USER_INDEXES).
What is the next step? Probably considering a refresh policy. Your best approach is to automate this task. Find out more .
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