Similar Questions

• Run DBMS_STATS. SET_TABLE_STATS in the package

  Hello

  I tried to put the table of statistics through DBMS_STATS. SET_TABLE_STATS for the table, I'm not owner.

  When I use the command SQL * Plus, it works fine.

  When I use the same command in the package, I got an error:

  ERROR on line 1:

  ORA-20000: TABLE 'XXX '. "' YYYYY ' does not exist or insufficient privileges

  ORA-06512: at "SYS." DBMS_STATS", line 4455

  ORA-06512: at "SYS." DBMS_STATS", line 10128

  ORA-06512: at "TKPA. KOPA_ORP_RELACIJE', line 13

  ORA-06512: at line 2

  User a role DBA and ALTER, DELETE, INDEX, INSERT and SELECT, UPDATE, REFERENCES, ON COMMIT REFRESH, QUERY REWRITE, DEBUG, FLASHBACK on table.

  Y at - it an idea?

  Thank you and best regards.

  Maybe

  Read memos to use SET_TABLE_STATS in http://docs.oracle.com/cd/E11882_01/appdev.112/e40758/d_stats.htm#ARPLS059

  To call this procedure, you must be the table owner, or you need the ANALYZE ANY privilege. For the objects belonged to SYS , you must be the owner of the table, or you must ANALYZE ANY DICTIONARY privilege or the SYSDBA privilege.

  Concerning

  Etbin

  http://docs.Oracle.com/CD/E11882_01/AppDev.112/e25519/subprograms.htm#LNPLS00809 can be useful also

• Execute "dbms_stats.gather_table_stats in the start = > run until the peak hours = > pause = > restart from where he was arrested after the rush hour" mode.

  Guys,

  Please let know us if it is possible to run dbms_stats.gather_table_stats in "start = > Execute until off-peak hours = > take a break during peak times = > restart from where he was arrested after the rush hour" mode.

  I partitioned table with mammoth number of records requiring full table statistics collection once all 3 months. Stats gathering is so expensive that it takes almost 2 days to complete.  Our goal is to ensure that no SQL that runs during peak hours (15:00 to 22:00 hours) is affected by the collection of statistics. That's why we would like the stats collection to run above mode.

  Ideas, suggestions would be very appreciated and I will receive with the profound esteem.

  -Bugs

  Like others, I wonder why full stats are required.

  You nightly stats together people with reduced mobility?

  Check dba_tab_modifications for the changes made to the table, your stats every night, whether its stats are needed comes from there so if a partition has no 10% change, why you re - collect his stats for her?  There are a few other things going on behind the scenes, but close enough.  Even if you set additional stats there and kick that off, he'll simply choose the following who did not, risking several work trying to do the same thing

  theres probably 10 different ways to act how you're good with plql but generate your work statistics with something like that, then open multiple windows of sqlplus and divide it into sections while you are in the collection of statistics on several pieces at the same time.    Failure could write some autonomous plsql proc that analyzes a partition that went in there and call that any amount of time passing in the partition in a loop, but you get the idea of gathering statistics on more than one partition at the same time.

  Change the value of table_owner and table_name

  exec DBMS_STATS. FLUSH_DATABASE_MONITORING_INFO;

  Select the command from

  (select (nvl(a.updates,0) + nvl(a.inserts,0) + nvl(a.deletes,0)) * 100)

  / nvl(b.num_rows,1) as change.

  "exec DBMS_STATS. GATHER_TABLE_STATS (' |) '''' || "TABLE_OWNER" | '''' || ',' || '''' || 'TABLE_NAME ' | '''' || ', granularity =>' | '''' || 'PARTITION | ''''||  ', PARTNAME =>' | '''' ||  a.PARTITION_NAME | '''' || ', ESTIMATE_PERCENT => DBMS_STATS. AUTO_SAMPLE_SIZE, METHOD_OPT => ' | '''' || 'FOR ALL COLUMNS SIZE AUTO ' | '''' || ')' as a command

  of dba_tab_modifications a, b dba_tab_partitions

  where a.table_name as "TABLE PARTITIONNEE YOUR BIG".

  and a.table_name = b.table_name

  and a.partition_name = b.partition_name

  and nvl(a.updates,0) + nvl(a.inserts,0) + nvl(a.deletes,0) > 0

  )

  where to change > = 10

• sreadtim is set to null after the execution of DBMS_STATS. GATHER_SYSTEM_STATS

  I have a 11.2.0.4 install.  I ran the DBMS_STATS. GATHER_SYSTEM_STATS, but after reviewing the statistics, the mreadtim and the sreadtim are null.

  JWF wrote:

  I had an interval of 15 minutes, 30 minutes and 2 hours.  Sometimes, the SREADTIM is filled, and sometimes the other read times are met.  But I still see other statistics such as iotfrspeed or mreadtim. So, what happens if you don't get all the stats? The CBO will use those by default, and others?

  You must understand that the statistics system are there different flavors (NOWORKLOAD compared to the workload) and there are two corresponding sets of stats.

  Statistics system NOWORKLOAD complete: cpuspeednw, ioseektim, iotfrspeed

  Note that if you don't explicitly realize the statistics gathering system NOWORKLOAD the optimizer uses a * default * together statistics system NOWORKLOAD based on default, IOSEEKTIM and IOTFRSPEED - this is the default behavior for most of the facilities which do not bother to do something for his stats of individual system.

  Complete system of workload stats: maxthr, slavethr, sreadtim, mreadtim, MBRC, cpuspeed

  Note that for the system of workload statistics some stats could be depopulated if no corresponding activity took place during the gathering stats (no single block reads-online no SREADTIM no readings diluvium-online no MREADTIM, MBRC, no parallel execution-online no SLAVETHR, MAXTHR etc.). In this case, I believe that the official documentation available is not quite right in saying that the missing values will be synthesized / derived from default values, but the calculation will return you to (default) NOWORKLOAD system stats depending on which parameter is missing (e.g. missing / invalid SREADTIM / MREADTIM: these values are essential for the calculation of costs, so come back to NOWORKLOAD)

  Just follow the links (official doc and my series) provided by Martin for more details.

  Randolf

• exec dbms_stats.set_column_stats

  Hi all

  on 11.2.0.4,.

  If I run:

  exec (dbms_stats.set_column_stats)

  OWNNAME = > 'FLINTSTONE ',.

  TABNAME = > 'FRED ',.

  NULLCNT = > 100000000)

  DISTANCE = > 10;

  How can I check the result? In what table? Any query see the new REMOTE value?

  Thank you.

  DBA_TAB_COLS

• DBMS_STATS, unexpected behavior?

  Hello

  I was doing an exercise to create migrated/chained rows for a table (ROW_CHAIN_MIG). [using 11.2.0.1]

  After inserting/updating of the lines in the table, I tried collecting statistics for the table to check the USER_TABLES. CHAIN_CNT

  using the DBMS_STATS. GATHER_TABLE_STATS as:

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

  SQL > exec dbms_stats.gather_table_stats (-)

  > ownname = > 'SYS '.

  (> tabname = > 'ROW_CHAIN_MIG');

  SQL > select chain_cnt from user_tables where table_name = 'ROW_CHAIN_MIG ';

  CHAIN_CNT

  ----------

  0

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

  But he returns to zero count for the chained rows.

  When I did an ANALYZE TABLE... CALCULATE STATISTICS, he returned 3 as number of chained rows

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

  SQL > analyze table row_chain_mig where compute statistics;

  SQL > select chain_cnt from user_tables where table_name = 'ROW_CHAIN_MIG ';

  CHAIN_CNT

  ----------

  3

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

  Is this expected behavior of the DBMS_STATS. GATHER_TABLE_STATS? (i.e. it does not collect statistics CHAIN_CNT)

  My understanding is DBMS_STATS to collect all the statistics gathered by ANALYZE & vbLf & stats no longer needed by the CBO.

  OR was it there something missing from the DBMS_STATS this stat (CHAIN_CNT) has been missed.

  TIA.

  The analyze command should not be used to collect optimizer statistics, but, as you noted, it will capture the chain_cnt (which does not differentiate between migrated lines, lines chained and lines chained 'intra-block' (i.e. the lines containing more than 255 columns) while dbms_stats.does do not attempt to capture a chain_cnt.) It is the expected behavior.

  Unfortunately (or not, depending on your point of view) the optimizer will use the chain_cnt in his calculations, if you use analyze to set.  Of course, there are other differences between the dbms_stats and analyze versions of stats - so plans can change between the two even if you have not all chained rows.

  See: analyse dbms_stats chain_cnt | Search results | Oracle scratchpad for a few comments - you need to follow a few links in the result list.

  Concerning

  Jonathan Lewis

• DBMS_STATS. GATHER_SCHEMA_STATS in One SE edition

  
  

  Hello

  We are in 11.2.0.4 Standard Edition One. is DBMS_STATS. Included GATHER_SCHEMA_STATS in SE edition license?

  Thank you and best regards.

  Yes: is included: I checked my 11.2.0.4 database. In the Se you can not run this in parallel...

• DBMS_STATS.gather_schema_stats: ORA-06502

  I am trying to run under block to find all objects with stale stats. Is someone can you please tell me what I'm missing?

  Set serveroutput on;

  DECLARE

  ObjList dbms_stats. ObjectTab;

  BEGIN

  DBMS_STATS. GATHER_SCHEMA_STATS (ownname = > null, OPTIONS = > "LIST out of DATE", objlist = > ObjList);

  FOR i IN ObjList.FIRST... ObjList.LAST

  LOOP

  dbms_output.put_line (ObjList (i). ObjName | ' ' || ObjList (i). Type of the object);

  END LOOP;

  END;

  /

  ORA-06502: PL/SQL: digital error or value

  ORA-06512: at line 5

  06502 00000 - "PL/SQL: digital error or the value of %s.

  * Cause: A digital arithmetic error, String, conversion or coercion

  has occurred. For example, this error occurs if an attempt is made to

  assign the NULL value to a variable declared NOT NULL, or if a

  attempt to assign an integer greater than 99 to a variable

  NUMBER (2) declared.

  * Action: Change the data, how it is handled, or how it is so declared

  that values do not violate the constraints.

  Using the Oracle 12 c on Windows 7 version

  You do not currently have all stale stats, so the dbms_stats. ObjectTab is empty.  Take into account:

  SQL > create type test_type as the object)

  col1 2 varchar2 (10));

  3.

  Type of creation.

  SQL > create type test_tab as table of test_type.

  2.

  Type of creation.

  SQL > declare

  l_tt 2 test_tab;

  3. start

  4. Select test_type (dummy)

  5 bulk collect into l_tt

  6 double

  7 where 1 = 2;

  8 because I in l_tt.first... l_tt loop. Last

  9 dbms_output.put_line (l_tt (i) .col1);

  10 end of loop;

  11 end;

  12.

  declare

  *

  ERROR on line 1:

  ORA-06502: PL/SQL: digital error or value

  ORA-06512: at line 8 level

  You should test if there is in fact no value before attempting to access the object.

  SQL > declare

  l_tt 2 test_tab;

  3. start

  4. Select test_type (dummy)

  5 bulk collect into l_tt

  6 double

  7 where 1 = 2;

  8 if l_tt.count > 0 then

  9 because loop me in l_tt.first... l_tt. Last

  10 dbms_output.put_line (l_tt (i) .col1);

  11 end of loop;

  12 on the other

  13 dbms_output.put_line ('no statistics obsolete');

  14 end if;

  15 end;

  16.

  No stale stats

  PL/SQL procedure successfully completed.

  John

• Call dbms_stats.gather_database_stats_job_proc)

  Nice day:

  Oracle 11g.2

  Are there negative consequences to the deactivation of this call:

  Call dbms_stats.gather_database_stats_job_proc)

  It consumes a lot of resources when running.  Is this necessary?  Other options to disable if it's a must "contact"?

  Thank you

  Aqua

  Aqua,

  Given the fact that this job only recalculates * statistics of fade (where more than 10 percent of the table changed), this can lead to older execution plans and therefore evil.

  A better measure would be to block statistics of the tables, where you do not WANT the statistics changed, using dbms_stats.lock.

  Now you try to solve a problem with a big hammer. You can get yourself hurt in the process

  Sybrand Bakker
  Senior Oracle DBA

• Difference between ANALYZE TABLE and DBMS_STATS. GATHER_TABLE_STATS?

  Hi DBAs,

  I'm in a learning phase and a newbie DBA. I got confused in the collection of statistics. Could someone explain the below? :

  ANALYZE TABLE employee COMPUTE STATISTICS;

  and

  DBMS_STATS. GATHER_TABLE_STATS ('hr', 'employees');

  The difference is that ANALYZE TABLE is obsolete for a long time and it's the wrong way of doing things.

• Dbms_stats uses all jobs in work queues

  Hello

  in my 11.2.0.4.1 the database, if run DBMS_STATS to the dictionary, it uses all the work of the work queue.

  The queue of my work is of 1000 (default) and the blocking of the system.

  Why?

  Concerning

  Ok

  I found the problem.

  It's DBMS_STATS. SET_GLOBAL_PREFS ('COMPETITOR', 'TRUE');

  Concerning

• analyze the work of the table but dbms_stats does not work

  Hi all

  I have a very simple question, although analyze command became obsolete for many years, when I use analyze, command, I get the result of empty_blocks (user_tables) but when I use the dbms_stat package I get nothing.

  SQL > select * from v version $;

  BANNER
  ----------------------------------------------------------------
  Oracle Database 10 g Express Edition Release 10.2.0.1.0 - product
  PL/SQL Release 10.2.0.1.0 - Production
  CORE 10.2.0.1.0 Production
  AMT for 32-bit Windows: Version 10.2.0.1.0 - Production
  NLSRTL Version 10.2.0.1.0 - Production

  SQL > create table deneme2 in select * from object;

  table created

  
  SQL > exec dbms_stats.gather_table_stats (USER, 'DENEME2');

  PL/SQL procedure successfully completed.

  SQL > select blocks, empty_blocks from user_tables where table_name = 'DENEME2;

  BLOCKS EMPTY_BLOCKS
  ---------- ------------
  13            0

  SQL > analyze table deneme2 calculating statistics;

  Parsed table.

  SQL > select blocks, empty_blocks from user_tables where table_name = 'DENEME2;

  BLOCKS EMPTY_BLOCKS
  ---------- ------------
  13            3

  Which is wrong with dbms_stats? I missed somewhere? Does anyone have any idea who why dbms_stat can't work?

  Thanks in advance.

  Hello

  That's what said ORACLE. See the link below:

  http://docs.Oracle.com/CD/B28359_01/server.111/b28310/general002.htm

  «Oracle is recommended to use the most versatile DBMS_STATS package for gathering statistics for the optimizer, but you must use the ANALYZE instruction to collect statistics that are not related to the optimizer, such as empty blocks, spatial average and so on.»

• DBMS_STATS.gather_table_stat will affect the performance of the database

  Hi all

  Please notify dbms_stats.gather_table_stat so on to materialize views will monopolize the database performance?

  Hello

  your question is not very accurate, it is not possible to answer more specifically. Collection of statistics requires resources, so it inevitably affects the activities of database performancewise. How it affects the rest of the database, is hard to say without knowing the parameters of the stats gathering work and the number and the size of scanned objects.

  Once statistics are collected their effect is most likely beneficial for the performance, but in some cases the effect can be reversed. This depends on whether or not current performance problems are related or statistical, and whether or not the statistical model Oracle can adequately describe the distribution of the data.

  Stats more important questions can help answer is whether an index can be beneficial for a query. So, if your MV index, then get specific statistics become even more important.

  Best regards

  Nikolai

• In oracle 11g DBMS_STATS collection

  Hi all

  Oracle 11 g 2

  Linux

  How to collect DBMS_STATS collection using DBMS_JOB suggest every Sunday (without cron jobs) .kindly.

  Thank you

  Sam.

  SQL > select to_char, job_name, job_action, owner (start_date, "DD-MON-RR HH24:MI:SS) Star

  V_DATE, to_char (next_run_date, "JJ-MON_RR HH24:MI:SS) next_run_date, failure_count, last

  _run_duration of dba_scheduler_jobs where job_name = 'TK13;

  JOB_NAME OWNER

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

  JOB_ACTION

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

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

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

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

  START_DATE NEXT_RUN_DATE FAILURE_COUNT LAST_RUN_DURATI

  WE

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

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

  SYS                            TK13

  BEGIN DBMS_STATS.gather_schema_stats ('SCOTT', estimate_percent-online DBMS_STATS. AUTO_SAMPL

  E_SIZE, cascade => TRUE); END;

  7 AUG 13 10:58 10:58 14-AUG_13 1 + 000000000 00:0

  0:00.023000

  SQL >

  I put aside as your suggested.

  face below error.

  ORA-06550: line 1, column 761:

  PLS-00201: identifier 'SCOTT' must be declared.

  ORA-06550: line 1, column 729:

  PL/SQL: Statement ignored

  Output, it is clear that you have surrounded Scott of double quotes ("").

• DBMS_STATS. LOCK_TABLE_STATS

  Hello

  on 11g any query to see if a table is locked for statistics with DBMS_STATS. LOCK_TABLE_STATS?

  Thank you.

  Hello

  You can check the column STATTYPE_LOCKED in the ALL_TAB_STATISTICS table