Oracle DTP plug-in running analyze when table is exploded in schema browser

When I click on the + next to a table name in this plug-in, this plug-in is submitting an analyze table {table_name} compute statistics;
I have verified this by monitoring the Oracle session I am connected to.
We CANNOT release this product to our developers, since simply opening up a table defintition to view it's columns indexes, etc. on a large table (and we have tables in the 100's of GB range) will hammer our databases, not to mention the fact that it may run for who knows how long.
For the life of me, I cannot imagine why it is doing this, especially since statistics are already available in the database.
Has anyone else experienced this behavior?

Thanks Robert,
Thanks for ur reply.
Yes this has been understood that this is due to the browser's pluginn shortage.
But ist is not specifing the specific plugin requred.
I tried the same with netscape .
It specifies to the '' application/x-java-applet;jpi-version=1.4.2_06 ''
Now tell me where to and how to get that plugin
Thanks..........

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hi,
the analyze table command is:
analyze table hr.employees compute statistics;
Now I want analyze all tables in the hr schema
how can I do it in a easy way,
thanks,
Zhiwei.

the only way to disable monitoring (globally) is to set statistics_level=basic.Exactly.
SYS@db102 SQL> select table_name,monitoring from dba_tables
2 where table_name like 'TEST%';
TABLE_NAME                     MON
TEST_P                         YES
TEST_MV                        YES
TEST_F                         YES
TEST11                         YES
TEST                           YES
TEST_TABLE                     YES
TEST_PART                      YES
TEST_LOB                       YES
TEST_EMP                       YES
TESTDECIMAL                    YES
TEST3                          YES
TEST1_DL2                      YES
TEST01                         YES
13 rows selected.
SYS@db102 SQL> alter system set statistics_level=basic;
System altered.
SYS@db102 SQL> select table_name,monitoring from dba_tables
2 where table_name like 'TEST%';
TABLE_NAME                     MON
TEST_P                         NO
TEST_MV                        NO
TEST_F                         NO
TEST11                         NO
TEST                           NO
TEST_TABLE                     NO
TEST_PART                      NO
TEST_LOB                       NO
TEST_EMP                       NO
TESTDECIMAL                    NO
TEST3                          NO
TEST1_DL2                      NO
TEST01                         NO
13 rows selected.
SYS@db102 SQL>                                                                                                            that's what I meant by "in 10g you have to do it explicitly".

Sql slow afterweekly STATS-JOB,then run analyze table it is fast again

Oracle R11.2.0.2 :
I hade some slow sql / reports and found the effect,
that the sql is slow obvious after the weekend ,
when STATS - JOB BSLN_MAINTAIN_STATS_JOB and other Jobs were running weekly on SYS.
I did run dbms_stats.GATHER_TABLE_STATS on schema
it doesn't help.
But when
run ANALYZE TABLE afterwards on only one or two tables of the schema
the sql / reports performance is well and fast.
in the dba_tables I can see the last_analyze - date
and in GLOBAL_STATS = NO ( when Table runs with ANALYZE ),
GLOBAL_STATS = YES( when Table runs with STATS )
what does the ANALYZE TABLE command doing good and let my sql run well and fast,
while dbms_stats.GATHER_TABLE_STATS
seems not work well in this situation ?
regards

astramare wrote:
Oracle R11.2.0.2 :
I hade some slow sql / reports and found the effect,
that the sql is slow obvious after the weekend ,
when STATS - JOB BSLN_MAINTAIN_STATS_JOB and other Jobs were running weekly on SYS.
I did run dbms_stats.GATHER_TABLE_STATS on schema
it doesn't help.
What options do you use for the gather_stats command ?
Do you also have collected system stats?
But when
run ANALYZE TABLE afterwards on only one or two tables of the schema
the sql / reports performance is well and fast.Analyze table is deprecated, but still does its work for some part. It is not as complete as dbms_stats
>
in the dba_tables I can see the last_analyze - date
and in GLOBAL_STATS = NO ( when Table runs with ANALYZE ),
GLOBAL_STATS = YES( when Table runs with STATS )
It must have to do something with the way you use it..
HTH
FJFranken

When tables should be analyzed

hi all,
i want to know on what basis or how a person woul be able to know when table should be analyzed..........
generally we have a tables that have been analyzed on 06/05/2008 15:50:15 query that i have used is
select      OWNER,
     TABLE_NAME,
     to_char(LAST_ANALYZED,'MM/DD/YYYY HH24:MI:SS') last_analyzed
from      dba_tab_columns
where      OWNER ='name';

burleson wrote:
Reanalyze ONLY when you want your SQL execution plans to change . . .
If you are satisfied with your plans, why change them?
Hi Don
Ummm, but if you don't update your statistics, your execution plans can change as well ...
It's incorrect to suggest that not changing statistics means your plans won't change. Two things of course continue to change even if you don't update the statistics, the data and the data being selected.
By following your advice, you might not have changed stats from 31 Dec 2005. Therefore Oracle thinks the max date value in your data is still 31 Dec 2005. But of course you now data as of say Jan 3 2009. When you query data of interest but the range of data you want is between say 1 Jan 2008 and 31 Dec 2008, how will the CBO determine the correct cardinality if it still thinks the max date is 31 Dec 2005 ?
Actual answer is version dependent but it will get the cardinality way wrong and likely generate a poor execution plan.
So perhaps your might want to update your statistics because you're satisfied with your plans and you don't won't them to change and suddenly go "wrong" by letting your statistics go stale.
Hope this helps.
Cheers
Richard Foote
http://richardfoote.wordpress.com/

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Oracle ODBC Driver adds bind variable when browsing whole table in Access

Hi, we are looking for some reasons why we may see this behavior in the Oracle ODBC driver (10gR2 and 11g) when using Microsoft Access (2003 or 2007)...
1) Link a table from the Oracle database.
2) Double-click the newly linked table to "browse" it.
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Thanks for the response, Greg.
The specific question I am seeking an answer for (sorry it was not clear on my first message) is this:
Why does the Oracle driver add the bind variable to the query only when the primary key is defined?
The Microsoft ODBC driver does not add the bind variable with or without a primary key defined.
You asked how I traced this statement and what I am doing is launching the query in Access and then using TOAD to view the V$SESSION and V$SQL_TEXT_WITH_NEWLINES views. All I do is change the driver. This is just for a simple browse table (double-click on the table) which should send
select * from table
However, whenever I use the Oracle ODBC driver (with a primary key defined) it sends
select * from table where primary_key = :1
If I remove the primary key on the table definition, the Oracle driver sends
select * from table
What is it about the primary key that could cause that behavior?
I don't think it is the MDAC/Jet level because this is the conversion to the native SQL statement not the Jet version. I know the Oracle driver has to do that part because you have those workaround options like don't add the RULE hint, etc. That's not part of the Jet engine.
Hope that helps. I'm just baffled over this one and wish I knew where to go next.

EM12c Oracle Database Plug-In 12.1.0.7 update now shows 10g listener as down when it's not

EM 12.1.0.4 with Oracle Database Plug-in 12.1.0.7
Monitored database and listener: 10.2.0.4
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2. Total Exceution time mentioned in the DTP details ta is less when added the total time for each data package. What are the reason for that difference. Which is correct?
Thanks & regards,
Ganesh Thota

Hi,
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Analyze a table

Hi,
This is regarding SQL tuning:
Oracle gathers statistics on the table when we analyze a table.
Actually what happens when we analyze a table internally?
Can some body please explain?
Thanks in advance.

Because the cost-based approach relies on statistics, you should generate statistics for all tables and clusters and all indexes accessed by your SQL statements before using the cost-based approach. If the size and data distribution of the tables change frequently, then regenerate these statistics regularly to ensure the statistics accurately represent the data in the tables.For more information you can view the following link
http://download-uk.oracle.com/docs/cd/B10501_01/server.920/a96533/stats.htm#13547
Thanks

How to run analyze schema

Hi Guys .
Please how do you RUN analyze schema or database or table?
I have ran gather all schema statistics and now my told to run analyze schema by my boss .. How do you do this please?
Platform is 11.5.9
OS: solarais
Thanks in advance

Look at the SQL Area report for your database. If you see more than maybe 1 SYS query in the top ten, you need to gather stats for SYS as well (9i and above).
SQLAREAT.SQL - SQL Area, Plan and Statistics for Top DML (expensive SQL in terms of logical or physical reads)
http://metalink.oracle.com/metalink/plsql/ml2_documents.showDocument?p_database_id=NOT&p_id=238684.1
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http://metalink.oracle.com/metalink/plsql/ml2_documents.showDocument?p_database_id=NOT&p_id=368252.1

Urgent :Analyze 14GB table

Experts,
I need to analyze a table which is 14GB and i have tried analyzeing it 3 times in sqlplus ,....but still wondering why its not analyzed.
Iam using the below query to analyze
EXECUTE SYS.DBMS_STATS.GATHER_TABLE_STATS (OwnName=>'SIEBEL',TabName=>'XXXXXX',Estimate_Percent=>10,Method_Opt=>'FOR ALL INDEXED COLUMNS SIZE AUTO ', DEGREE=>12, CASCADE=>TRUE, No_Invalidate=> FALSE);
Could anyone help me in
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2)How to confirm if its really analyzed.
3)How to check if its analyzing.
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and it depends on how many dependent object because cascade => true.Only INDEXES. Not dependent objects.
cascade
Gather statistics on the indexes for this table. Index statistics gathering is not parallelized. Using this option is
equivalent to running the GATHER_INDEX_STATS Procedure on each of the table's indexes. Use the constant
DBMS_STATS.AUTO_CASCADE to have Oracle determine whether index statistics to be collected or not. This is the
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Oracle DTP plug-in running analyze when table is exploded in schema browser

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