Server Administration :: Remove Synonym STATS$SNAPSHOT-ID?
Sep 11, 2007
I've got to collect statistics by DBMS_STAT. For the first time, the spcreate.sql is to be called, however, it returned one error following:
If this script is automatically called from spcreate (which is the supported method), all STATSPACK segments will be created in the PERFSTAT user's default tablespace.
Using perfstat tablespace to store Statspack objects
create public synonym STATS$SNAPSHOT_ID for STATS$SNAPSHOT_ID
*
ERROR at line 1:
ORA-00955: name is already used by an existing object Disconnected from Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production With the Partitioning, OLAP and Data Mining options
And then, I checked it again with its owner:
SQL> select owner, synonym_name
2 from dba_synonyms
3 where synonym_name='STATS$SNAPSHOT_ID';
OWNER SYNONYM_NAME
------------------------------ ------------------------------
PUBLIC STATS$SNAPSHOT_ID
Then, I checked again after dropping schema PERFSTAT:
During STATS gather running for the table, unknowingly i deleted the old stats using EXEC DBMS_STATS.DELETE_TABLE_STATS. I would like to know will it affect the stats gather job currently running for the table and whether my stats will be gathered successfully.
We are running a query in one of our databases using the database the link. The query fails in the middle with "ORA-01555: snapshot too old". Not sure, about the database which this error message points to? Will it be the database we have logged in or it is the database where db link points ?
We are running 11g (11.2.0.3)We have a "working table" that is empty at the beginning of the day.Then we start adding rows (insert) with a key column called STATE with a value of 100.At the same time, there are other apps that pickup data in state 100 , process that data and change that state to 200 or 300.There is also another app that pickup data in state 200 , process that data and change that state to 300 or 400.
So in summary, the data on that table is at the beginning empty, then all the rows are in state 100, they slowly move to different states (200, 300, etc) and by the end of the day, they are all in 400.
My question is what would be the best way to collect stats on this table?
I was thinking to create an hourly job to collect stats on that table: exec dbms_stats.gather_table_stats ( ownname => 'SCOTT', tabname => 'WORK_T
I've just installed an Oracle 11.2.0.1.0 64 bit server on my windows 7 machine in order to play around while using attempting to run
exec dbms_stats.gather_table_stats('eii','v2x4e')
I get the following: ORA-20000: Unable to analyze TABLE "EII"."V2X4E", insufficient privileges or does not exist ORA-06512: at "SYS.DBMS_STATS", line 20327 ORA-06512: at "SYS.DBMS_STATS", line 20360 ORA-06512: at line 1
My initial google searches indicate that I need the select any table and analyze any privileges. I don't think that can be right/appropriate - but I've granted them anyway to no avail.
Select * from user_tables
returns tables in the System and sysaux tablespaces, but not my own schema/tablespace?
Quote:Oracle collects new statistics when enough of the data (about 10%) has changed.I read the above statement in the oracle documentation that Oracle collects new statistics when enough of the data (about 10%) has changed every day during 10 pm to 6am .
But still i see some object statistics are stale and empty.Do i need to collect statistics for these objects manually ? and would like to know why these objects statistics were not collected during maintenance window ?
Using below script i run stats gather job..But LAST_ANALYZED column is not updated for the table.. Why it was not updated.. My DB version is 11.1.0.7.0
### Changes made ### 1 week before we did a change on tablespace segment management - from MANUAL to AUTO by following method: 1. create INVD2 & INVX2 & LOBD tablespace. 2. Move TABLE from INVD to INVD2. 3. Rebuild INDEX from INVX to INVX2. 4. Move LOBSEGMENT from INVD to LOBD tablespace. 5. After confirm no segments exist in old tablespace, offline and drop INVD & INVX. 6. Change default tablespace for INV user to INVD2. 7. RENAME TABLESPACE INVD2 to INVD, INVX2 to INVX. 8. Change default tablespace for INV user to INVD back. 9. Run Gather Schema Stat for INV using UNIX scheduler which work usually. However, error ended with ORA-03113 & ORA-03114. 10. Manual execute with same statement the following day, procedure completed successfull.
After 1 week later, inventory forms detected error FRM-40735 in all forms. Checked the gather schema stat job was run in the morning before user feedback..
AFter refer notes from metalink, I understand this is a bug where RENAME of the tablespace could not rename as the previous one, as the deleted entry is still exist in sys.ts$?
There is no segments exist in the deleted tablespace, or any user default tablespace is assigned to the deleted tablespace.
My Question:How can we delete the deleted entry from sys.ts$?And should we rename the tablespace from INVD to INVD3 (or can we use back INVD2) to avoid any unforseen error again?
I've ran: DROP TABLESPACE x_tbs INCLUDING CONTENTS;
I've read(should have read it prior to action) [URL]tm
and I understand now that I should have stated "AND DATAFILES", However, too late now. the tablespace is removed, but the datafile x_tbs is still present in a folder of my OS.
Is it safe to manually remove it by deleting it from the operating system?
I have used the above to get a copy of schema stats and gather new stats for specific tables into a STATS TABLE in my personal schema. What I want to do now is use this stats table to generate plans for queries where I believe stats are off. Is it even possible? To be clear, I do not want to import stats because this replaces the stats currently there. I just want to point the CBO to my stats table for generating plans.
there was a session parameter I could set to tell oracle to use my stats table when generating plans, or an explain plan clause I could use or a DBMS_XPLAN paramter I could provide that would tell these tools to use my stats table when generating a plan, or even some way to tell autotrace. But I have found none of this.
I have exported and imported a schema from one server to another. In the source schema, I have a public synonym. I do not know the name of that synonym. In the destination schema, the public synonym is missing. How to create the public synonym which is missing in the destination database?In the source, I queried dba_synonyms, all_synonyms... but it returns no rows selected.
We are taking full logical backup ( export) in freeze hours( no user login). But prompting error "ORA-01555: snapshot too old: rollback segment number 7 with name "_SYSSMU7$" too small".
Developer is importing some large volumes of data. As the filesystem was filling up fast, I removed the all the archive log files. Will this affect the functioning of database? It is a development environment.
I'm making a function A that does many calls to procedures in an other package B. To make this function more readable, I'd like to specify synonyms for the procedures in B. I only need the synonyms inside this function, I don't want to make database synonyms.
For example:
Function get_all_employees return clob is v_emp clob; begin
I have exported and imported a schema from one server to another. In the source schema, I have a public synonym. I do not know the name of that synonym. In the destination schema, the public synonym is missing. How to create the public synonym which is missing in the destination database? In the source, I queried dba_synonyms, all_synonyms... but it returns no rows selected.
We are making Oracle Insight Application based on Oracle 11gR2 DB.We have two DEV environments. On Oct 17, we had trouble in one DEV environment.From dba_common_audit_trail , we found some user did drop public synonym statement and we doubt it as cause of the problem. I would like to collect synonym information of the two DEV environment.1How could I do that ?2And we are thinking of using Logminer to investigate the cause of problem.Logminer is usable to investigate the cause of problem if we have the REDO log of Oct 17 ?
Now I have another db where I wish to import the above dump. This is not a empty db, however, I have dropped the particular user from this db for which I have created a dump above. Then I have created the same user using 'create user....'.And now I am trying to import the above dump into this.
import goes fine but I gets the circular synonym error for some of the types.
IMP-00003: ORACLE error 4055 encountered ORA-04055: Aborted: "O_BULK_TARGET_SELECTOR" formed a non-REF mutually-dependent cycle with "T_GENERAL_IDLIST". ORA-06550: line 5, column 25: PLS-00421: circular synonym 'PUBLIC.T_GENERAL_IDLIST'
The db from which I created the dmp has no errors for these objects, but while impoting it gives these errors.I have even tried taking the whole database dmp(not a particular user), and importing it into full empty database. Then also I gets the same error.
I have schema a and b in the same database with synonym table a (schema a) to schema b. When I try to disable trigger from table a in schema b; I got this message:
ORA-00942: table or view does not exist
I have granted all permissions to schema b and I am able to SELECT FROM table a in schema b
There are over 100 objects like tables,procedures,packages,triggers in my database.I am looking for a script/sql which should list out synonyms and grant privs on it.
How can I create a trigger to check if synonym already exists in db and if exists then don't create synonym.
my work: ( this is just like an outline i prepared)
select * from all_synonyms; declare s_exists number; begin -- check whether the synonym exists select 1 into s_exists from all_synonyms; -- an error gets raise if it doesn't exception when no_data_found then -- DDL has to be done inside execute immediate ' create or replace synonym'; end; /
