Arrgggg...
So anyway, I am thinking, hey it's high time I start using DBMS_STATS
instead of my own procedure so I kick of the following (Oracle 8.1.7.4).
After the first run I have SYS and SYSTEM stats on indexes and on other
schemas with NO STATS it just ignored those tables even though you can see I
have GATHER EMPTY below. So I kick it off again and guess what, it starts
analyzing the tables it missed the first time, including SYS and SYSTEM.
Guess I am going to use DBMS_STATS.GATHER_TABLE_STATS and be a bit more
specific about what I get.
define estimate_percent=5
declare
begin
-- Can easily change to gather_schema_stats (make sure you add schema
name)
dbms_stats.gather_database_stats(
&estimate_percent,FALSE,'FOR ALL COLUMNS SIZE 1',
NULL,'DEFAULT',TRUE,NULL,NULL,'GATHER EMPTY');
dbms_stats.gather_database_stats(
&estimate_percent,FALSE,'FOR ALL COLUMNS SIZE 1',
NULL,'DEFAULT',TRUE,NULL,NULL,'GATHER STALE');
exception
when others then
dbms_output.put_line(dbms_utility.format_error_stack);
end;
Ethan Post
perotdba (AIM), epost1 (Yahoo)
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-----Original Message-----
Sent: Friday, October 04, 2002 3:56 PM
To: [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]
indexes?
Importance: High
I seem to recall this is a bug. You may want to check MetaLink.
In any case, you don't want to analyze SYS on any version
of Oracle. ( yet )
Don't see what harm in having stats on SYSTEM tables though.
It's just a DBA account.
Jared
"Post, Ethan" <[EMAIL PROTECTED]>
Sent by: [EMAIL PROTECTED]
10/04/2002 02:23 PM
Please respond to ORACLE-L
To: Multiple recipients of list ORACLE-L <[EMAIL PROTECTED]>
cc:
Subject: DBMS_STATS.GATHER_DATABASE_STATS analyzes SYS and
SYSTEM indexes?
Looks like this is the case, does it know something I don't know? Are
indexes OK to analyze in the SYS and SYSTEM schemas? Looks like is
correctly does not do tables.
- Ethan
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Author: Post, Ethan
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