update statistics on the tables

Similar Questions

• Collect statistics of the table in windows

  Hello

  Could you please help me to collect statistics for the tables below in Windows. I tried collection using dbms_scheduler job for a table, but it is not the collection of statistics for tables.

  TABLE_NAME OWNER

  NUM_ROWS BLOCKS

  Size

  MQRDW DWREFERENCETRACE GO 2891985937 26372904, 17.86

  TRAY PON_SERIAL 563722072 5135734 GB 8,12

  TRAY PON_PSN

  23588517

  32009064 2.67 GB

  TRAY PON_BOM_LOG 37199475 212936 601 MB

  TRAY UNIQUE_ITEM_LOTS 6633907 79710 160 MB

  TRAY PON_BOM

  5921377 41717

  328 MB

  SQL > start

  (2 dbms_scheduler.create_job)

  job_name 3 = > "SCOTT_JOB_SCHEDULE"

  job_type 4 = > "EXECUTABLE."

  5 job_action = > ' begin dbms_stats.gather_table_stats (ownname = > "TRACE3")

  6 tabname = > 'PON_PSN ',.

  estimate_percent 7 = > 30,

  Cascade 8 = > true,

  method_opt 9 = > 'for all THE COLUMNS of SIZE 1.

  10 degrees = > 5,

  11 options = > "BRINGING OUTDATED"); end;',

  12 repeat_interval = > ' freq = daily; byhour = 04; byminute = 0; bysecond = 0; »,

  13 active = > TRUE,

  14 comments = > ' custom stats collection for engine risk ");

  15 end;

  17 N

  PL/SQL procedure successfully completed .

  
  

  Total number of CPU available on this server is 8

  Oracle - 10.2.0.4.0

  OS - windows

  Kind regards

  Bala

  52 million lines?

  and how to change every day or be inserted?

  It is possible that you can never bring his stats again

  and everything will probably continue to work as expected

  read the guide to setting performance to understand why you need to collect statistics and when

  https://docs.Oracle.com/CD/E11882_01/server.112/e41573/stats.htm#PFGRF94714

  After reading this guide, you'll be ready for any question, you get all that against this team

  Sometimes you need to say 'no' and why the answer is 'no '.

• How to collect statistics on the table for tables in a different schema

  Hi all
  
  I have a table in a schema, and I want to collect statistics for the table in a different schema.
  
  I gave GRANT ALL ON SCHEMA1. T1 TO SCHEMA2;
  
  And when I tried to run the command to collect statistics to help
  
  DBMS_STATS. GATHER_TABLE_STATS (OWNNAME = > 'SCHMEA1', TABNAME = > 'T1');
  
  The function will fail.
  
  Is there a way we can collect statistics of the table for tables in a schema into another schema.
  
  Thank you
  MK.

  You must grant analyze to schema2.

  SY.

• Need a solution to update values in the table

  My version of oracle is 11 and my table name is nit_xml in which column the name is cust_dtls
  
  Nit_xml table data
  
  
  < root >
  Nitesh < Cust_dtls > < / Cust_dtls >
  < / root >
  
  I want to just update Nitesh Nit...
  
  Its inserted i through this way, values
  
  INSERT INTO nit_xml
  VALUES)
  ' < root >
  Nitesh < Cust_dtls > < / Cust_dtls >
  < / root > '
  
  So I tried to update my way like like that
  
  
  
  UPDATE nit_xml
  SET cust_dtls = ' < root >
  Nitesh < Cust_dtls > < / Cust_dtls >
  < / root > '
  WHERE cust_dtls = ' < root >
  Nitesh < Cust_dtls > < / Cust_dtls >
  < / root > ';
  
  But not working if anyone can give me any ideas about XML as well as how it works and what is possible or not to update through query... His note I want to update the column cust_dtls based on the same value of the column and not any other data type number or varchar2 because that based on other datatype it works easily and the second thing her i use application TOAD while the manual update is possible which is very good, but I need to update directly through query...
  
  
  
  Kind regards
  Nitkhush...

  Niteshkhush wrote:
  But in this link and that updated the example is based on once again the string as warehouse_name as 'san fransciso', but I want to update based on the same datatype column in which I am faced with the difficulty of writing where the clause can u give some advice...

  Like this?

  update nit_xml
     set cust_dtls = updatexml(cust_dtls, '/root/Cust_dtls/text()', 'Nit')
   where trim(extract(cust_dtls, '/root/Cust_dtls/text()')) = 'Nitesh'
  

• collect statistics of the table

  Hi all
  
  DB version: 10.2.0.4
  OS: AIX 6.1
  
  I want to collect the stats table for a table as the query that uses that table is slow. Also, I noticed that this table is using full table scan, and it has been analyzed in last 2 months back.
  
  I intend to run the query to collect the statistics below. The table has 50 million records.
  COUNT (*)
  ----------
  51364617
  
  I expect that this will take time if I run the query as below.
  
  
  DBMS_STATS.gather_table_stats EXEC ('schema_name', 'table_name');
  
  My doubts specified below.
  
  1. can I use the also estimate_percent parameter to collect statistics?
  
  2 should. how much we indicate for the estimate_percent parameter?
  
  3. what difference it will make if I use the estimate_percent parameter?
  
  Thanks in advance
  
  Published by: user13364377 on March 27, 2012 13:28

  If you are worried about the stats of collection process for a long time running, consider collecting statistics in parallel.

  1. can you use estimate_percent? Sure! Go ahead.
  2. what percentage of use? Why not let the data decide with auto_sample_size? Various "rules of thumb" were thrown around over the years, usually about 10 to 20%.
  3. what difference it will make? Very little, no doubt. Occasionally, you can see where a small sample makes a difference, but in general that it's perfectly ok to estimate its stats.

  Maybe something like this:

  BEGIN
    dbms_stats.gather_table_stats(ownname => user, tabname => 'MY_TABLE',
     estimate_percent => dbms_stats.auto_sample_size, method_opt=>'for all columns size auto',
     cascade=>true,degree=>8);
  END;
  

• Job GATHER_STATS collect statistics for the tables 'static '.

  Oracle version: 10 gr 2
  
  If a corporate table has not changed (No. DML) in the last 10 days, will be the collection of default oracle job stats

  DBMS_STATS.GATHER_DATABASE_STATS_JOB_PROC

  yet collect statistics in this table?

  The answer is no, unless you have changed the default optimizer stats collection of statistics because approximately 10% of the data must have undergone change before that table is elgible for new statistics.

  See the next topic in the Performance and Tuning section 14.2.1 GATHER_STATS_JOB Manual:

  http://download.Oracle.com/docs/CD/B19306_01/server.102/b14211/stats.htm#sthref1068

  HTH - Mark D Powell.

• Collect statistics on the table with indexes of text only?

  I gathered statistics for a table that contains a text index
  EXEC DBMS_STATS. GATHER_TABLE_STATS (USER, 'CONADDR', estimate_percent = > 10, block_sample = > TRUE, cascade = > TRUE);
  
  There are a lot of tables/indexes not monitored (e.g. DR$ TI_CONADDR$ I). Do I have to analyse the tables there, too? The Guide Tuning Oracle text mentions just to analyze the table of "base".
  
  Oracle DB version is 10.2.0.4.
  

  select table_name, last_analyzed, num_rows from dba_tables where table_name like '%CONADDR%';
  CONADDR     11.08.2010 10:29:37     17944660
  DR$TI_CONADDR$I          
  DR$TI_CONADDR$R          
  DR$TI_CONADDR$K          
  DR$TI_CONADDR$N          
  
  select index_name, table_name, last_analyzed, num_rows from dba_indexes where table_name like '%CONADDR%';
  SYS_IL0003730268C00004$$     CONADDR          
  IDX_CONADDR                     CONADDR     11.08.2010 10:29:46     17106050
  SYS_IL0003731165C00006$$     DR$TI_CONADDR$I          
  SYS_IOT_TOP_3731168             DR$TI_CONADDR$K          
  SYS_IL0003731170C00002$$     DR$TI_CONADDR$R          
  SYS_IOT_TOP_3731173             DR$TI_CONADDR$N          
  DR$TI_CONADDR$X                     DR$TI_CONADDR$I     11.08.2010 10:05:05     67585029
  TI_CONADDR                     CONADDR     11.08.2010 10:29:46     

  DR$ table do NOT need to be analysed - and should not be.

  As "secondary objects", they will not be analyzed by orders based on patterns, and it is strongly recommended to not analyze manually. All commands that access these tables are set correctly without the input of the optimizer.

• Updating column in the table using forms...

  Well Guyz I got my submission today... everything went well... .but yet they want to add IE more features want to donate this application at different times working in the company on different projects... .initailly told me that u have to create this application for just our project, now they use my work to give to other PMsss:(et prendre tout le crédit avec aucun faisait pour moi u n personnes m'a beaucoup aidé dans la construction de cette application...) Well, they want to create an application where they can change some columns... that is to say over write the existing value in a column with a new value.
  Now, suppose I have col1, col2 in the table paymast, how should I proceed to create trigger for when I press the button on the form is updated to the number of given employee (I want to say if enter the respective information for the particular EMP as soon as I press the button the old values shud b replaced by new values...)
  
  A method that I have noe is to use the wizard to create the form n, and then enter the value of the respective areas of the column to be updated n, then press F6 DB... .i do not want to use this function...
  
  I want to update the application by pressing the button
  
  soon :)
  
  Published by: Chase Suhail on Nov 15, 2009 12:26 AM
  
  Published by: Chase Suhail on Nov 15, 2009 12:29 AM
  
  Published by: Chase Suhail on Nov 15, 2009 12:30 AM
  
  Published by: Chase Suhail on 15 Nov 2009 02:05

  I don't know a lot of your application, but if you build it near standard forms (e.g. base your blocks on the tables), then its standard Frédérique you type the new value in the field and press save. the button... do you want to the "economy"? then put a DO_KEY ('COMMIT_FORM'); in it.

• Updated form when the table is updated

  Hi experts,
  
  I am quite new to the apex, and I came across a problem. I created a table with 10 columns and that created a form/report.i need to update my table by adding new columns, but I can't get my updated report.
  
  I have included the field in my sql query manually but tat doesn't seem to work.
  
  is there anywhere I should change my form and report updated.your advice would be much appreciated. Thank you
  
  Kevin

  Hello

  Normally, the report would just automatically update to include new columns - are typically placed at the end of the column list. If you change your report area and click the report attributes, see your new columns? If so, the Show check box is checked for them? If it isn't, check it. If you click the Edit next to a missing column, what 'view' is defined - is - this "Standard report column?"

  Or, you use an interactive report? If so, you must run the page, click the Action icon and then choose "Select columns" and make sure that each column is listed on the right.

  Andy

• How to understand if the table update or obsolete?

  Hello Experts

  I use the following to understand that the picture is up-to-date or out-of-date. However, it is said that the picture is not expired, but when I check the number of lines of user_tables is does not not to the actual number of lines. The difference is 272132. Is this normal? Normally, about 50000 rows are inserted in the table of responses a day.

  My other question is, are there other ways to ensure that statistics on the table are updated or not? What do you think?

  Connected to:

  Oracle Database 11 g Enterprise Edition Release 11.2.0.1.0 - 64 bit Production

  With partitioning, OLAP, Data Mining and Real Application Testing options

  SQL > select stale_stats from the user_tab_statistics where table_name = "ANSWERS";

  STA

  ---

  NO.

  SQL > select num_rows from user_tables where table_name = 'RESPONSES;

  NUM_ROWS

  ----------

  18525435

  SQL > select count (*) responses;

  COUNT (*)

  ----------

  18797567

  Note: by the way what do I do in order to write the code in code view? I used {code}, but it doesn't work.

  Thanks in advance.

  Hello

  The NUM_ROWS in USER_TAB_STATISTICS will be updated when you GATHER STATISTICS on the table. Check the column LAST_ANALYZED in USER_TAB_STATISTICS, which indicates if the STATISTICS were gathered again on the RESPONSES of the Table. If collect you statistics on the RESPONSE table now then NUM_ROWS will reflect the most accurate value.

  Normally after 'significant' DML (INSERT / UPDATE/DELETE) on a table, it is recommended to collect statistics.

  DBMS_STATS documentation describes this http://docs.oracle.com/cd/B28359_01/appdev.111/b28419/d_stats.htm#CIHBIEII

  In addition,

  Use the Advanced Editor and > to select image formatting.

  Demonstration of Table statistics collection adding...

  IMPLEMENT...

  > drop table tst

  table deleted TST.

  > format table_name col A10

  > alter session set NLS_DATE_FORMAT = "dd-mm-yyyy HH24:mi:ss.

  session the changed VALUE.

  > create table tst (c number)

  table created TST.

  > insert in TCT select level c. from dual connect by level<>

  99 inserted rows.

  > validation

  committed.

  We will collect statistics on the TST table...

  > exec ('HR', 'TST') SYS.dbms_stats.gather_table_stats

  anonymous block filled

  > select table_name, num_rows, last_analyzed from user_tables where table_name = 'TST '.

  TABLE_NAME, NUM_ROWS LAST_ANALYZED

  ---------- ---------- ---------------------

  TCT 99 04/12/2013-17:58:51

  NUM_ROWS account (about) the correct number of rows.

  We will insert several lines and check the statistics.

  > insert in TCT select level c. from dual connect by level<>

  999 inserted rows.

  > validation

  committed.

  > select table_name, num_rows, last_analyzed from user_tables where table_name = 'TST '.

  TABLE_NAME, NUM_ROWS LAST_ANALYZED

  ---------- ---------- ---------------------

  TCT 99 04/12/2013-17:58:51

  NOTE: The NUM_ROWS and LAST_ANALYZED have not changed... YET.

  > exec ('HR', 'TST') SYS.dbms_stats.gather_table_stats

  anonymous block filled

  > select table_name, num_rows, last_analyzed from user_tables where table_name = 'TST '.

  TABLE_NAME, NUM_ROWS LAST_ANALYZED

  ---------- ---------- ---------------------

  TST 1098 17:58:52 04/12/2013

  Now we have complete and up-to-date statistics.

  Hope it will be useful.

  VR,

  Sudhakar

• Statistics gathering on the tables of AW

  Our design uses relational tables in a star schema and cubes aggregate level at our tables. We have materialized views of cube with the rewrite of the query.
  
  We meet statistical diligently for all of our tables in our star using DBMS_STATS schema. We also collect stats of the analytic workspace on our size and our cubes by using DBMS_AW_STATS.
  
  My question has to do with the collection of statistics on table on the CB$ and tables of $ CR that are created in the schema. I tried running dbms_stats.gather_table_stats against these tables and it works, and their updated stats do not appear in the database. My concerns are (1) is it still useful to have stats table on these tables? As far as I know, they are not really directly questioned for any reason whatsoever and (2) it takes a lot of time to gather statistics on some of these tables - much longer than the collection of statistics for our largest fact table - and stats collection will not work in parallel to these tables.
  
  Is it recommended to skip gathering statistics on the tables of $ CR and CB$?

  Execution of his stats on CB$ & CR$ MVs is at best useless and can even kill the system performance because it will force us to materialize all the lines in a cube.

• How to get a list of the tables more fragmented in Oracle?

  Is there a SQL on how to get a list of the tables more fragmented in the Oracle DBMS?

  Update the statistics on the table and try this, you should see very fragmented tables upstairs with high wasted_space.

  select table_name,round((blocks*8),2) "size (kb)" ,
                              round((num_rows*avg_row_len/1024),2) "actual_data (kb)",
                              (round((blocks*8),2) - round((num_rows*avg_row_len/1024),2)) "wasted_space (kb)"
  from dba_tables
  where (round((blocks*8),2) > round((num_rows*avg_row_len/1024),2))
  order by 4 desc
  

  I changed the query a little because the ORDER BY will not work if we concat | ' Ko ' with the column because this makes the output a character column data.
  And added a WHERE condition to see that these tables where the total size is greater than the actual size of data.

  Published by: zahid79 on July 23, 2010 13:40

• ORA-01733 on update of version (view) table join

  I'm doing an update to a table with version of workspace manager (Workspace Manager replaces the table with his own point of view) using a line join view (because the merger does not display of INSTEAD of triggers). It works very well on a normal table and simple updates on the work of versioned table but when I try the join implementation update on a table with version, I get "ORA-01733: virtual column not allowed here."
  I do not understand why it gives ORA-01733 here. Can someone explain and help me get the join update to work?
  The version is 11.2.0.3
  
  I can use the update successfully while the table is not versioned.
  The Workspace Manager view isn't a self-join, and the column is not a function or an expression.
  I update the columns show also editable in user_updatable_columns
  I'm prototyping this for an application. I need to make large updates - there could be 10,000 rows with 80 columns updated, and I will do this for the 200 paintings, so I don't want to upgrade from postcode =(select...) set suppliers
  Here is a script to demonstrate the problem:
  

  create table suppliers (supplier varchar2(10) not null, postcode varchar2(10), v1 number, v2 number, v3 number, constraint suppliers_pk primary key (supplier));
  create table sup_data (supplier varchar2(10) not null, new_postcode varchar2(10), nv1 number, nv2 number, nv3 number, constraint sup_data_pk primary key (supplier));
  insert into suppliers values ('NORTH', null, 1, 2, 3);
  insert into sup_data values ('NORTH', '3000', 1.1, 2.2, 3.3);
  commit;
  update suppliers set postcode='1000', v1=0.1, v2=0.2, 
  update (select d.postcode, s.new_postcode , d.v1, d.v2, d.v3, s.nv1, s.nv2, s.nv3 from suppliers d join sup_data s on d.supplier = s.supplier)
  set postcode= new_postcode, v1 = nv1, v2 = nv2, v3 = nv3 ;
  -- That succeeded. Now try with the workspace manager versioning view.
  rollback;
  exec DBMS_WM.EnableVersioning ('suppliers', hist=> 'VIEW_WO_OVERWRITE');
  update (select d.postcode, s.new_postcode , d.v1, d.v2, d.v3, s.nv1, s.nv2, s.nv3 from suppliers d join sup_data s on d.supplier = s.supplier)
  set postcode= new_postcode, v1 = nv1, v2 = nv2, v3 = nv3 ;
  -- set postcode= new_postcode
  --     *
  -- ERROR at line 2:
  -- ORA-01733: virtual column not allowed here
  
  -- Try with an explicit view:
  create view sup_updt as select d.postcode, s.new_postcode , d.v1, d.v2, d.v3, s.nv1, s.nv2, s.nv3 from suppliers d join sup_data s on d.supplier = s.supplier;
  select * from user_updatable_columns where table_name = 'SUP_UPDT';
  
  select * from sup_updt;
  update sup_updt set postcode= new_postcode, v1 = nv1, v2 = nv2, v3 = nv3 ;
  -- update sup_updt set postcode= new_postcode, v1 = nv1, v2 = nv2, v3 = nv3
  --                     *
  -- ERROR at line 1:
  -- ORA-01733: virtual column not allowed here
   

  Thanks for your help
  
  Published by: davidp 2 on April 17, 2013 19:17

  Oracle development explained the ORA-1733:

  The update fails because the target (select d.postcode, s.new_postcode, d.v1, d.v2, d.v3, s.nv1, s.nv2, v_suppliers s.nv3 d join s on d.supplier = s.supplier sup_data) the update is a non merged display inline.  An update on a view must be translatable for an update on an underlying table. Thus, all the views mentioned in the update must be seen that can be merged. The same phenomenon occurs when you create instead of trigger on the view v_suppliers [was] not that can be merged, leading to the error downstream.

  For example, an (undocumented) ORA-1733 means "can not update display not merged."

• Collection of statistics with the cascade option is slow

  Hi all.
  
  The database is 11.2.0.3 on a linux machine.
  
  I published the following command, but the session was a bit slow.
  
  The size of the table is about 50 GB and has 3 clues.
  
  I said 'degree = 8' for parallel processing.
  
  When collecting statistics on the table, parallel slaves have been invoked and gather statistics on the table ended pretty quickly.
  
  However, when he goes to the collection of statistics on indexes, only an active session was invocked and so "level = 8" option is ignored.
  
  My question is:
  
  Do I need to use dbms_stats.gahter_index_stats instead of the option "cascade" in order to gather statistics on indexes with parallelism?
  
  

  exec dbms_stats.gather_table_stats(ownname=>'SDPSTGOUT',tabname=>'OUT_SDP_CONTACT_HIS',estimate_percent=>10, degree=>8 , method_opt=>'FOR ALL COLUMNS SIZE 1',Granularity=>'ALL',cascade=>TRUE);

  Thanks in advance.
  
  Best regards.

  Hello

  This could happen due to the index being created as NOPARALLEL. Try to redefine with DOP = 8 and see if that helps (running a quick test to verify this before making any expensive DDLS).

  Best regards
  Nikolai

• Total number of records in the table read

  Here is the procedure to read total no of record in the table specified by the user during execution. But it still gives the same answer for all the table. Can someone help me?
  
  create or replace procedure p3 (varchar2, not on the number tab)
  as
  Start
  Select count (*) from no tab;
  end;

  You need dynamic SQL statements.

  Or:
  http://laurentschneider.com/wordpress/2007/04/how-do-i-store-the-counts-of-all-tables.html
  To get the name of the Table and no lines
  http://asktom.Oracle.com/pls/asktom/f?p=100:11:1725645184471282:P11_QUESTION_ID:1660875645686

  Or simply use the data dictionary, collect statistics of the table, then:
  Select table_name, num_rows from user_tables;