fire off multiple dbms_stats.gather_schema 2004-07-07 - By David
I am using dynamic sql to generate code that will analyze schemas. I
would just gather_database stats, but the request is that I use
dbms_stats.gather_Schema so that the process can be broken down into
concurrent sets and run concurrently(and with parallel). Does anyone have
any advice, ideas or tips on how I might accomplish this?
Here is what I 'm currently using:
select
'exec dbms_stats.gather_schema_stats(ownname= > ' ||chr(39)||
owner||chr(39)|| ' ,estimate_percent= > 10 ,cascade= > TRUE , block_sample= >
TRUE ,degree= > 4); '
FROM DBA_TABLES
WHERE OWNER NOT IN ( 'SYS ')
AND PARTITIONED = 'NO '
AND LAST_ANALYZED < SYSDATE - 14
UNION
select
'exec dbms_stats.gather_schema_stats(ownname= > ' ||chr(39)||
owner||chr(39)|| ' , estimate_percent= > 10 ,cascade= > TRUE , block_sample= >
TRUE ,degree= > 4); '
FROM DBA_TABLES
WHERE OWNER NOT IN ( 'SYS ')
AND LAST_ANALYZED IS NULL;
Yes, I do know that the options clause will take care of some of the
functionality that I am filtering via the predicate and I have plans to
incorporate that feature.
Thanks!
--
..
David
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