Server Administration :: How To Find Non-indexed Queries And Columns That Require Indexes
Sep 1, 2011How to find non-indexed queries and columns that require indexes?
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Query To Find Current Queries Not Using Indexes?
Mar 29, 2012hint of which DBA views we need to query to find current running queries which are not using indexex?
I suppose v$session is one , what else we need to look to?
SQL & PL/SQL :: Are NULLs Indexed In BITMAP Indexes
Jul 24, 2012Are NULLs get indexed in bitmap indexes? How can I verify that.
View 3 Replies View RelatedServer Administration :: How To Find Unused Columns
Nov 9, 2011is there a way to find out which unused columns in oracle?
View 8 Replies View RelatedServer Administration :: Privilege Require To Gather Stats?
May 27, 2012what privilege is required to run dbms_stats package for gathering table and schema statistics.
SQL> show user
USER is "JACK"
SQL>
SQL> select * from user_sys_privs;
no rows selected
SQL> select * from user_role_privs;
no rows selected
SQL> select * from role_sys_privs;
no rows selected
SQL> exec dbms_stats.gather_table_stats('JACK','EN1')
PL/SQL procedure successfully completed.
I revoke all the privileges from JACK user but still i am able to gather stats for a table.what privilege is require to gather stats.
SQL & PL/SQL :: IOT Table Can Have More Than One Non-PK Indexed Columns
Jul 27, 2011IOT Table can have more than one non-PK indexed columns.
View 6 Replies View RelatedServer Administration :: Indexes To Be Rebuild?
Jan 30, 2010How to find indexes which are eligible to rebuild in the database environment? Is there any query to find it?
View 7 Replies View RelatedServer Administration :: Exchange Partition With Update Indexes
Nov 7, 2011I exchange a partition with into a normal table with UPDATE INDEXES,but i found the index of both table are marked UNUSABLE?
SQL> Create Table tb_hxl_list_part
2 (
3 statedate Number,
4 provcode Number
5 )
6 Partition By List(provcode)
7 (
8 Partition p_1 Values(1)
9 );
Table created.
SQL> Create Unique Index idx_tb_hxl_list_part On tb_hxl_list_part(provcode) Local;
Index created.
SQL> Insert Into tb_hxl_list_part Values(20111101,1);
1 row created.
SQL> commit;
Commit complete.
SQL> Select status From dba_ind_partitions aa
2 Where aa.index_name = 'IDX_TB_HXL_LIST_PART';
STATUS
--------
USABLE
SQL> Create Table tb_hxl_list_part_bak
2 (
3 statedate Number,
4 provcode Number
5 );
Table created.
SQL> Create Unique Index idx_hxl_list_part_bak On tb_hxl_list_part_bak(provcode);
Index created.
SQL> Select status From dba_indexes bb
2 Where bb.index_name = 'IDX_HXL_LIST_PART_BAK';
STATUS
--------
VALID
SQL> Alter Table tb_hxl_list_part
2 Exchange Partition p_1
3 With Table TB_HXL_LIST_PART_bak UPDATE Indexes;
Table altered.
SQL> Select status From dba_ind_partitions aa
2 Where aa.index_name = 'IDX_TB_HXL_LIST_PART';
STATUS
--------
UNUSABLE
SQL> Select status From dba_indexes bb
2 Where bb.index_name = 'IDX_HXL_LIST_PART_BAK';
STATUS
--------
UNUSABLE
Server Administration :: Move Indexes (around 300) From Data To Index Tablespace
May 18, 2011I need to move my indexes (around 300) from data tablespace to index tablespace. What's the best way to do it?
View 9 Replies View RelatedServer Administration :: Are Parallel Queries Supported In Oracle XE
Nov 18, 2010I'm not sure is parallel query supported in xe ?
View 2 Replies View RelatedServer Administration :: Session Inactive But Running Queries?
Mar 4, 2010I am using 10.2.0.4 oracle database on Solaris 10. We are running some Peoplesoft upgrade on one of the database from last 6-7 hours. The status of the session is INACTIVE from couple of hours. And the sql_id is null for these sessions.
select sid,serial#,STATUS,to_char(logon_time,'DD-MON_YY HH24:MI:SS') from v$session where username like '%&usern%' ORDER BY 4 DESC;
533 2234 INACTIVE 04-MAR_10 01:59:02
525 5919 ACTIVE 04-MAR_10 01:54:50
534 4186 INACTIVE 04-MAR_10 01:05:15
520 2320 INACTIVE 04-MAR_10 00:29:44
[code].....
While when i see the current sql from the v$active_session_history, it keep on changing after every 10-15 minutes. Using below query to find the sql_text for the session from v$active_session_history.
select sql_id, sql_text
from v$sql
where sql_id in (
select sql_id
from v$active_session_history
where session_id=511
[code].....
We have not faced issue like this during Peoplesoft upgrade. what could be the reason that the status is not changing while the base sqls keep on changing after every 10 minutes.
Find Ddl For Any Indexes?
Oct 9, 2012on 11g R2 on Win 2008
How to find ddl for any indexes built on MY_VW ?
PL/SQL :: Multiple Indexes Using Same Columns On One Table?
Oct 4, 2012I have a table like MyTab(a int, b int), and I am required to create a primary key index and a non-unique index on this table using columns (a,b) in a specific table space.
The back end database is Oracle 10g.
Here's what I have tried so far, needless to say, unsuccessfully.
Alter Table MyTab
Add Constraint c_1 primary key (a, b)
Using Index (Create index mytab_idx on MyTab(a, b))
Using index tablespace results_index
So my question are:
1. is this is possible? if so, what is the correct syntax.
2. assuming it is possible, using this sort of construct before? it appears to be conflicting and inconsistent to me.
Exadata :: Columns In Storage Indexes
Apr 22, 2013Exadata storage indexes stores eight columns in a table.
I am bit confused here, what will happen if I am having a table with 24 columns. In this case how does Storage indexes use these 24 columns.
whether three indexes will be created for this table?.
SQL & PL/SQL :: Find Out Database Name For Indexes
Jan 15, 2013I am trying to find out database name for the unusable indexes thru the query; I am using dba_indexes for the index name but not sure which view I need to join with to find the db name.
View 11 Replies View RelatedSQL & PL/SQL :: Multiple Queries Into Different Columns?
Jan 31, 2013I am trying to validate a monthly report so was trying to write queries to get different criteria into one table. So my first query returns all the product,second query returns all the enrolled customers, 3rd query returns all the cancelled customers and 4th query returns all the newly enrolled for a month. Is there a way I can pass the first query results into 1st column, 2 query results into 2nd column, 3 query results into 3rd column and so on.
I tired writing the SQL several different ways and have spent a day on it and still cannot figure it out. I am using SQL Developer.
How To Find Over Fragmented Tables / Indexes
Jun 19, 2012i am using oracle 10g. is there a way to find out the over fragmented tables/indexes ,so that reorganizing or rebuilding them will improve sql performajnce?
View 4 Replies View RelatedPerformance Tuning :: How To Find All Indexes Scripts In Particular Schema
Aug 16, 2012getting all indexes script in particular schema.
View 4 Replies View RelatedFind Sql Queries Run By Users Through Application?
Jul 10, 2012We have a database version 10.2.0.3 and it is connecting through an application with a schema called HR_OR.
I am using the below query to get sql statements.
SQL> SELECT
2 SST.VALUE CPU, S.USERNAME, S.SID, S.SERIAL#, SQL_TEXT
3 FROM
4 V$SESSION S,
5 V$SQLTEXT_WITH_NEWLINES T,
6 V$SESSTAT SST
7 WHERE S.SQL_ID IS NOT NULL
8 AND S.SQL_ID = T.SQL_ID
9 AND SST.SID = S.SID
10 AND SST.STATISTIC# = (SELECT STATISTIC# FROM V$STATNAME SN WHERE SN.NAME = 'CPU used by this session')
11 ORDER BY 1 DESC, S.SID,T.PIECE;
It is showing same query for all users and I tried to run the quey from sqlpus,getting error [SP2-0552: Bind variable "xxxx" not declared]. So I hv confusion here.
1. How I can see the queries running by users though application.
2. get the exact query run by users and the same query I want to run from sqlplus.
Performance Tuning :: How To Find Local And Global Indexes On Particular Table
Mar 19, 2012getting how many local and global indexes on particular oracle table
View 2 Replies View RelatedServer Administration :: Unable To Find Server Process In Oracle Database For Specific Application / Client
Feb 13, 2013I am trying to find the unix process for one of my application in the database but I am unable to view the same. To simulate, I did the following.
1. My database runs on different server.
2. I invoked "sqlplus" from another unix box to login to the database.
3. I found that the process id (ps -ef |grep sqlplus).
4. When I execute the below mentioned query it does not display the process id that I am looking for. But the osuser, username, program and machine details are correct. How can I know the process details from the database?
SELECT SYS.GV_$SESSION.OSUSER, SYS.GV_$SESSION.USERNAME, SYS.GV_$PROCESS.SPID,
SYS.GV_$SESSION.MACHINE, SYS.GV_$SESSION.PROGRAM,
SYS.GV_$PROCESS.PROGRAM ,SYS.GV_$SESSION.SQL_ID
FROM
SYS.GV_$PROCESS, SYS.GV_$SESSION
WHERE
SYS.GV_$PROCESS.ADDR=SYS.GV_$SESSION.PADDR and SYS.GV_$SESSION.USERNAME='TEST'
and SYS.GV_$SESSION.MACHINE like '%hostname%'
Server Administration :: Find Or Set New Oracle Instance Name On Backup Server
Sep 22, 2010We performed image copy of production Oracle server (OS and instances) to a backup server. After a few weeks, we try to restore a latest Oracle database backup from production server to backup server. As we know, Oracle instance must be unique on the network.
Even we log on to backup server and bring up the instance, I think that still point to production instance since all init file, TNSNAMES.ora and listener file are still same. If we restore the database, we will end up bring down the production instance and restore on top of productions. How to change instance name on backup server including TNSNAMES, sqlnet, listener files in order for us to restore Oracle database from production to backup server?
Server Administration :: Unused Columns
Jul 13, 2013If you mark a column unused, is there any way to project it? I know the docs say you can't, but as the data is still there I would have thought it should be possible. I can see the column in dba_tab_cols, but the obvious ways of making it usable don't work:
orcl> select column_name,hidden_column from user_tab_cols where table_name='DEPT';
COLUMN_NAME HID
------------------------------ ---
LOC NO
DNAME NO
DEPTNO NO
orcl> alter table dept set unused column loc;
Table altered.
orcl> select column_name,hidden_column from user_tab_cols where table_name='DEPT';
COLUMN_NAME HID
------------------------------ ---
SYS_C00003_13071316:19:02$ YES
DNAME NO
DEPTNO NO
orcl> select "SYS_C00003_13071316:19:02$" from dept;
select "SYS_C00003_13071316:19:02$" from dept
*
ERROR at line 1:
ORA-00904: "SYS_C00003_13071316:19:02$": invalid identifier
orcl> alter table dept rename column "SYS_C00003_13071316:19:02$"
2 to loc;
alter table dept rename column "SYS_C00003_13071316:19:02$"
*
ERROR at line 1:ORA-00904: "SYS_C00003_13071316:19:02$": invalid identifier
orcl> alter table dept modify "SYS_C00003_13071316:19:02$"
2 visible;
alter table dept modify "SYS_C00003_13071316:19:02$"
*
ERROR at line 1: ORA-00904: "SYS_C00003_13071316:19:02$": invalid identifier
Performance Tuning :: How To Find Out Queries That Are Executed In Particular Range Of Time
Sep 9, 2011here we have an scenario where we want to find out all the sql statements that are executed in a particular time. The sql statements are executed via our application. I tried in awr report but it shows only the sql query which has taken long time to execute. and i even tried in V$session and V$sqlarea. how to view the executed sql statements in a particular session/current session
View 3 Replies View RelatedFind Queries Bases On Elapsed Time From Window Of 3 Months
Nov 19, 2012how to find out queries bases on elapsed time from the window of 3 Months
DBA_HIST_SQLSTAT and DBA_HIST_SQLTEXT
PL/SQL :: Oracle Dictionary View 2 / Find Queries Run And Its Execution Time
Feb 6, 2013Is there any oracle dictionary view which captures the queries being run by users on the database and time taken to execute those queries?We need to find out the OS user not the database user since we have to identify the users who are executing long running queries.We require this basically to monitor the long running queries on the database.
View 2 Replies View RelatedServer Administration :: How To Find Updated Table
Mar 9, 2012how to find a table is updated and when the table is updated.
View 1 Replies View RelatedServer Administration :: Find Whether Database Link Is Being Used?
Jul 26, 2011I am having database A and database B and I am inserting into database b by selecting some records from database a using db link.Is there any way to find whether database link is being used?
View 6 Replies View RelatedServer Administration :: How To Find When The Datafile Was Resized
Jan 17, 2012We need to find when any datafile was resized ( if at all)in a tablespace. Actually, by noting the created date from v$datafile , we used to know the data growth in a tablespace. Now as the number of datafiles have increased, we want to resize them. This diagnostinc have to be done without changing/adding anything in DB.
View 12 Replies View RelatedServer Administration :: Where To Find Alert Log Errors
May 10, 2010where i can find an alert log errors so whenever they occur in my RAC so i can comprehend them very well. I am trying to know that what can be the errors when u have RAC with ASM and SAN .
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