Thread : select switchover_status from v$database

hi there,
I am not able to change my primary database switchover to standby. As before i did some r.n.d while running below command on primary db: "alter database commit to switchover to physical with session shutdown" then i checked status
"select switchover_status from v$database";
sql>SWITCHOVER_STATUS
TO PRIMARY
after that i run this command to switch again to standby db:
sql> alter database commit to switchover to standby with session shutdown;
Database altered.
but still showing same status:
SQL> select switchover_status from v$database;
SWITCHOVER_STATUS
TO PRIMARY
how do i make my primary db on switchover_status to standby .any solution would be graceful.
thanks

bingo!!
i create backup of controlfile:
sql>alter database backup controlfile to trace as '/Pgh/controlfile.sql';
and take my primary db to nomount stage run the script:
startup nomount;
sql@Pgh/controlfile.sql';
database mount;
alter database open resetlogs;
then i checked switchover_status
select switchover_status from v$database;
SWITCHOVER_STATUS
to standby

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Hi All,
My oracle database version is Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - 64bit on windows platform.
I need to perform switchover activity with dg_broker=TRUE.
When I checked the status of DR database I found that switchover_status is NOT ALLOWED rather than SESSION ACTIVE or TO PRIMARY.I have doubt whether switchover can be done successfully or not with this configuration?
*Parameters from spfile in production database
=======================================
maxprod.__db_cache_size=2046820352
maxprod.__java_pool_size=16777216
maxprod.__large_pool_size=16777216
maxprod.__shared_pool_size=352321536
maxprod.__streams_pool_size=0
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*.background_dump_dest='C:\oracle\product\10.2.0\admin\maxprod\bdump'
*.compatible='10.2.0.1.0'
*.control_files='D:\MaximoData\oradata\maxprod\CONTROL01.CTL','D:\MaximoData\oradata\maxprod\CONTROL02.CTL','D:\MaximoData\oradata\maxprod\CONTROL03.CTL'
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*.cursor_sharing='EXACT'
*.db_block_size=8192
*.db_domain=''
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*.db_name='maxprod'
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*.db_recovery_file_dest_size=2147483648
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*.fal_client='MAXPROD'
*.fal_server='EAMDR'
*.job_queue_processes=10
*.log_archive_config='DG_CONFIG=(MAXPROD,EAMDR)'
*.log_archive_dest_1='location=D:\MaximoData\Archive_Log valid_for=(all_logfiles,all_roles)'
*.log_archive_dest_2='SERVICE=EAMDR VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) db_unique_name=EAMDR'
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*.log_archive_start=true
*.log_buffer=100000000
*.nls_language='AMERICAN'
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*.pga_aggregate_target=848297984
*.processes=300
*.remote_login_passwordfile='EXCLUSIVE'
*.session_cached_cursors=20
*.sga_max_size=4294967296
*.sga_target=2550136832
*.sql92_security=TRUE
*.standby_archive_dest='D:\MaximoData\Archive_Log\standby'
*.standby_file_management='auto'
*.undo_management='AUTO'
*.undo_tablespace='UNDOTBS1'
*.user_dump_dest='C:\oracle\product\10.2.0\admin\maxprod\udump'*
*Parameters from spfile in DR database
============================
maxprod.__db_cache_size=3187671040
eamdr.__db_cache_size=1073741824
maxprod.__java_pool_size=16777216
eamdr.__java_pool_size=16777216
maxprod.__large_pool_size=16777216
eamdr.__large_pool_size=16777216
maxprod.__shared_pool_size=1056964608
eamdr.__shared_pool_size=486539264
maxprod.__streams_pool_size=0
eamdr.__streams_pool_size=0
*.audit_file_dest='C:\oracle\product\10.2.0\admin\EAMDR\adump'
*.background_dump_dest='C:\oracle\product\10.2.0\admin\EAMDR\bdump'
*.compatible='10.2.0.1.0'
*.control_files='D:\MAXIMODATA\ORADATA\MAXPROD\CONTROL01.CTL','D:\MAXIMODATA\ORADATA\MAXPROD\CONTROL02.CTL','D:\MAXIMODATA\ORADATA\MAXPROD\CONTROL03.CTL'#Restore Controlfile
*.core_dump_dest='C:\oracle\product\10.2.0\admin\EAMDR\cdump'
*.db_block_size=8192
*.db_domain=''
*.db_file_multiblock_read_count=16
*.db_name='maxprod'
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*.db_recovery_file_dest='D:\MaximoData\flash_recovery_area'
*.DB_UNIQUE_NAME='EAMDR'
*.dg_broker_start=TRUE
*.dispatchers='(PROTOCOL=TCP) (SERVICE=maxprodXDB)'
*.fal_client='EAMDR'
*.fal_server='MAXPROD'
*.job_queue_processes=10
*.log_archive_config='DG_CONFIG=(MAXPROD,EAMDR)'
*.log_archive_dest_1='LOCATION=D:\MaximoData\Archive_Log VALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=EAMDR'
*.log_archive_dest_2='service=maxprod valid_for=(online_logfiles,primary_role) db_unique_name=MAXPROD'
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*.log_archive_max_processes=30
*.nls_language='AMERICAN'
*.open_cursors=8000
*.pga_aggregate_target=194967296
*.processes=150
*.remote_login_passwordfile='EXCLUSIVE'
*.sga_max_size=4294967296
*.sga_target=1594967296
*.standby_archive_dest='D:\MaximoData\Archive_Log\standby'
*.standby_file_management='AUTO'
*.undo_management='AUTO'
*.undo_tablespace='UNDOTBS1'
*.user_dump_dest='C:\oracle\product\10.2.0\admin\EAMDR\udump'*
I didn't find any DG_BROKER_CONFIG_FILE1, DG_BROKER_CONFIG_FILE2 parameters from spfile in both production and DR db?
Is anything missing in spfile?
When I am trying to connect with dgmgrl
DGMGRL>connect sys;
connected
DGMGRL>show configuration;
Error: ORA-16532: Data Guard broker configuration does not exist
what does it mean when dgmgrl is set to true?
I have attached PRODUCTION and DR queries outputs for better understanding.
IN PRIMARY DATABASE
SQL>select database_role from v$database;
DATABASE_ROLE
PRIMARY
SQL> select switchover_status from v$database;
SWITCHOVER_STATUS
SESSIONS ACTIVE
SQL> select db_unique_name,database_role,open_mode,log_mode,protection_mode from v$database;
DB_UNIQUE_NAME DATABASE_ROLE OPEN_MODE LOG_MODE PROTECTION_MODE
maxprod PRIMARY READ WRITE ARCHIVELOG MAXIMUM PERFORMANCE
SQL> select process,status,client_process,sequence# from v$managed_standby;
PROCESS STATUS CLIENT_P SEQUENCE#
ARCH CLOSING ARCH 7820
ARCH CLOSING ARCH 7835
ARCH CLOSING ARCH 7835
ARCH CLOSING ARCH 7821
ARCH CLOSING ARCH 7822
ARCH CLOSING ARCH 7822
ARCH CLOSING ARCH 7793
ARCH CLOSING ARCH 7823
ARCH CLOSING ARCH 7824
ARCH CLOSING ARCH 7824
ARCH CLOSING ARCH 7825
ARCH CLOSING ARCH 7825
ARCH CLOSING ARCH 7826
ARCH CLOSING ARCH 7826
ARCH CLOSING ARCH 7827
ARCH CLOSING ARCH 7827
ARCH CLOSING ARCH 7828
ARCH CLOSING ARCH 7828
ARCH CLOSING ARCH 7829
ARCH CLOSING ARCH 7829
ARCH CLOSING ARCH 7830
ARCH CLOSING ARCH 7830
ARCH CLOSING ARCH 7831
ARCH CLOSING ARCH 7831
ARCH CLOSING ARCH 7832
ARCH CLOSING ARCH 7832
ARCH CLOSING ARCH 7833
ARCH CLOSING ARCH 7833
ARCH CLOSING ARCH 7834
ARCH CLOSING ARCH 7834
30 rows selected.
SQL> sho parameter log_archive_config
NAME TYPE VALUE
log_archive_config string DG_CONFIG=(MAXPROD,EAMDR)
SQL> spool off
IN SECONDARY DATABASE
SQL> select database_role from v$database;
DATABASE_ROLE
PHYSICAL STANDBY
SQL> select switchover_status from v$database;
SWITCHOVER_STATUS --------------------
NOT ALLOWED
SQL> select db_unique_name,database_role,open_mode,log_mode,protection_mode from v$database;
DB_UNIQUE_NAME DATABASE_ROLE OPEN_MODE LOG_MODE PROTECTION_MODE
EAMDR PHYSICAL STANDBY MOUNTED ARCHIVELOG MAXIMUM PERFORMANCE
SQL> select process,status,client_process,sequence# from v$managed_standby;
PROCESS STATUS CLIENT_P SEQUENCE#
ARCH CLOSING ARCH 7809
ARCH CLOSING ARCH 7810
ARCH CLOSING ARCH 7812
ARCH CLOSING ARCH 7813
ARCH CLOSING ARCH 7814
ARCH CLOSING ARCH 7815
ARCH CLOSING ARCH 7816
ARCH CLOSING ARCH 7817
ARCH CLOSING ARCH 7818
ARCH CLOSING ARCH 7819
ARCH CLOSING ARCH 7820
ARCH CLOSING ARCH 7821
ARCH CLOSING ARCH 7822
ARCH CLOSING ARCH 7823
ARCH CLOSING ARCH 7824
ARCH CLOSING ARCH 7825
ARCH CLOSING ARCH 7826
ARCH CLOSING ARCH 7827
ARCH CLOSING ARCH 7828
ARCH CLOSING ARCH 7829
ARCH CLOSING ARCH 7830
ARCH CLOSING ARCH 7831
ARCH CLOSING ARCH 7832
ARCH CLOSING ARCH 7833
ARCH CLOSING ARCH 7835
ARCH CLOSING ARCH 7804
ARCH CLOSING ARCH 7805
ARCH CLOSING ARCH 7806
ARCH CLOSING ARCH 7807
ARCH CLOSING ARCH 7808
MRP0 WAIT_FOR_LOG N/A 7836
RFS IDLE UNKNOWN 0
RFS IDLE UNKNOWN 0
RFS IDLE UNKNOWN 0
RFS IDLE UNKNOWN 0
RFS IDLE UNKNOWN 0
RFS IDLE UNKNOWN 0
RFS IDLE UNKNOWN 0
RFS IDLE UNKNOWN 0
RFS IDLE UNKNOWN 0
RFS IDLE UNKNOWN 0
RFS IDLE UNKNOWN 0
RFS IDLE UNKNOWN 0
RFS IDLE UNKNOWN 0
RFS IDLE UNKNOWN 0
RFS IDLE UNKNOWN 0
RFS IDLE

Meenakshy singh wrote:
Hi All,
My oracle database version is Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - 64bit on windows platform.
I need to perform switchover activity.When I checked the status of DR database I found that switchover_status is NOT ALLOWED rather than SESSION ACTIVE or TO PRIMARY.I have doubt whether switchover can be done successfully or not?
I have attached PRODUCTION and DR queries outputs for better understanding.
IN PRIMARY DATABASE
SQL>select database_role from v$database;
DATABASE_ROLE
PRIMARY
SQL> select switchover_status from v$database;
SWITCHOVER_STATUS
SESSIONS ACTIVE
SQL> select db_unique_name,database_role,open_mode,log_mode,protection_mode from v$database;
DB_UNIQUE_NAME DATABASE_ROLE OPEN_MODE LOG_MODE PROTECTION_MODE
maxprod PRIMARY READ WRITE ARCHIVELOG MAXIMUM PERFORMANCE
SQL> select process,status,client_process,sequence# from v$managed_standby;
PROCESS STATUS CLIENT_P SEQUENCE#
ARCH CLOSING ARCH 7820
ARCH CLOSING ARCH 7835
ARCH CLOSING ARCH 7835
ARCH CLOSING ARCH 7821
ARCH CLOSING ARCH 7822
ARCH CLOSING ARCH 7822
ARCH CLOSING ARCH 7793
ARCH CLOSING ARCH 7823
ARCH CLOSING ARCH 7824
ARCH CLOSING ARCH 7824
ARCH CLOSING ARCH 7825
ARCH CLOSING ARCH 7825
ARCH CLOSING ARCH 7826
ARCH CLOSING ARCH 7826
ARCH CLOSING ARCH 7827
ARCH CLOSING ARCH 7827
ARCH CLOSING ARCH 7828
ARCH CLOSING ARCH 7828
ARCH CLOSING ARCH 7829
ARCH CLOSING ARCH 7829
ARCH CLOSING ARCH 7830
ARCH CLOSING ARCH 7830
ARCH CLOSING ARCH 7831
ARCH CLOSING ARCH 7831
ARCH CLOSING ARCH 7832
ARCH CLOSING ARCH 7832
ARCH CLOSING ARCH 7833
ARCH CLOSING ARCH 7833
ARCH CLOSING ARCH 7834
ARCH CLOSING ARCH 7834
30 rows selected.
SQL> sho parameter log_archive_config
NAME TYPE VALUE
log_archive_config string DG_CONFIG=(MAXPROD,EAMDR)
SQL> spool off
IN SECONDARY DATABASE
SQL> select database_role from v$database;
DATABASE_ROLE
PHYSICAL STANDBY
SQL> select switchover_status from v$database;
SWITCHOVER_STATUS --------------------
NOT ALLOWED
SQL> select db_unique_name,database_role,open_mode,log_mode,protection_mode from v$database;
DB_UNIQUE_NAME DATABASE_ROLE OPEN_MODE LOG_MODE PROTECTION_MODE
EAMDR PHYSICAL STANDBY MOUNTED ARCHIVELOG MAXIMUM PERFORMANCE
SQL> select process,status,client_process,sequence# from v$managed_standby;
PROCESS STATUS CLIENT_P SEQUENCE#
ARCH CLOSING ARCH 7809
ARCH CLOSING ARCH 7810
ARCH CLOSING ARCH 7812
ARCH CLOSING ARCH 7813
ARCH CLOSING ARCH 7814
ARCH CLOSING ARCH 7815
ARCH CLOSING ARCH 7816
ARCH CLOSING ARCH 7817
ARCH CLOSING ARCH 7818
ARCH CLOSING ARCH 7819
ARCH CLOSING ARCH 7820
ARCH CLOSING ARCH 7821
ARCH CLOSING ARCH 7822
ARCH CLOSING ARCH 7823
ARCH CLOSING ARCH 7824
ARCH CLOSING ARCH 7825
ARCH CLOSING ARCH 7826
ARCH CLOSING ARCH 7827
ARCH CLOSING ARCH 7828
ARCH CLOSING ARCH 7829
ARCH CLOSING ARCH 7830
ARCH CLOSING ARCH 7831
ARCH CLOSING ARCH 7832
ARCH CLOSING ARCH 7833
ARCH CLOSING ARCH 7835
ARCH CLOSING ARCH 7804
ARCH CLOSING ARCH 7805
ARCH CLOSING ARCH 7806
ARCH CLOSING ARCH 7807
ARCH CLOSING ARCH 7808
MRP0 WAIT_FOR_LOG N/A 7836
RFS IDLE UNKNOWN 0
RFS IDLE UNKNOWN 0
RFS IDLE UNKNOWN 0
RFS IDLE UNKNOWN 0
RFS IDLE UNKNOWN 0
RFS IDLE UNKNOWN 0
RFS IDLE UNKNOWN 0
RFS IDLE UNKNOWN 0
RFS IDLE UNKNOWN 0
RFS IDLE UNKNOWN 0
RFS IDLE UNKNOWN 0
RFS IDLE UNKNOWN 0
RFS IDLE UNKNOWN 0
RFS IDLE UNKNOWN 0
RFS IDLE UNKNOWN 0
RFS IDLE UNKNOWN 0
RFS IDLE UNKNOWN 0
RFS IDLE UNKNOWN 0
RFS IDLE UNKNOWN 0
RFS IDLE UNKNOWN 0
RFS IDLE UNKNOWN 0
RFS IDLE UNKNOWN 0
RFS IDLE UNKNOWN 0
RFS IDLE UNKNOWN 0
RFS IDLE UNKNOWN 0
56 rows selected.
SQL> sho parameter log_archive_config
NAME TYPE VALUE
log_archive_config string DG_CONFIG=(MAXPROD,EAMDR)
SQL> spool off
1.In this case,is switchover is possible?No
2.If not possible then what will be the next step?If the value in the SWITCHOVER_STATUS column is SESSIONS ACTIVE, identify and terminate active user or SQL sessions that might prevent a switchover from being processed.
If, after performing these steps, the SWITCHOVER_STATUS column still displays SESSIONS ACTIVE, you can successfully perform a switchover by appending the WITH SESSION SHUTDOWN clause to the
ALTER DATABASE COMMIT TO SWITCHOVER TO PHYSICAL STANDBY statement.
3.Is this will impact to our production database when switchover is not successfully perform?
4.In DR RFS is idle,why?Can you paste here log_archive_dest_n paramete which is you are using for transport?
Did you using DELAY attribute in log_archive_dest_n parameter?
Mahir

Failover from standby database to primary database

Hi,
Can anyone suggest me, How to do " Standby DataGuard database to primary database (dataguard)".
Kindly Give me steps.
Thanks,
Shweta

Hi
Follow these steps
Oracle switchover operation:
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Log_archive_dest_1=”this is the local archive destination”
+Log_archive_dest_2=”This is the Service [TNS ENTRY]”+
Log_archive_dest_state_1=Enable
Log_archive_dest_state_2=Enable
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Fal_Client=”this should have the tns entry for the primary
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Standby_File_Management=AUTO
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+Log_archive_dest_2=”This is the Service [TNS ENTRY]”+
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Fal_Client=”this should have the tns entry for the standby
Standby_archive_dest=”This should have the Location where the archive located”
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3.     Shutdown both primary and standby databases
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5.     Check the Primary database on Open mode and the Standby database on mount stage
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SQL>select switchover_status from v$database;Sessions Active or To standby will be appearing on the result
SQL> alter database commit to switchover to standby with session shutdown;
SQL> shutdown Immediate;
SQL>startup nomount;
SQL>alter database mount standby database;
SQL>Alter system set log_Archive_dest_state_2=defer;7.     On Standby
SQL>select switchover_status from v$database;it is acceptable to have Sessions Active or To Primary
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SQL>shutdown immediate;
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Select data from database tables with high performance

hi all,
how to select data from different database tables with high performance.
im using for all entries instead of inner joins, even though burden on data base tables is going very high ( 90 % in se30)
hw to increase the performance.
kindly, reply.
thnks

Also Check you are not using open sql much like distict order by group by , use abap techniques on internal table to acive the same.
also Dont use select endselect.
if possible use up to n rows claus....
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also dont run select in siode any loops.
i guess these are some of the trics oyu can use to avoid frequent DATA BASE HITS AND ABVOID THE DATA BASE LAOD.

Select data from table where field is initial

I have table that has 10 million records.
I want to select data from this table where certain date field is blank.
*SELECT * FROM table*
INTO TABLE internal table
WHERE PSTNG_DATE = BLANK.
Does anybody know how to select data from data base table when certain field is blank.
I cont select all data once and delete which i dont want, the table is big, it will blow up app server.
thanks in advance,
Sachin
Moderator: Pls do not lock the posting instead provide me the link, its disrespecting.

Respect the forum rules and common sense, and you will be respected.
"how to select data from a database table when the field is blank" is very basic, and basic questions will be locked, because they have been asked many times and you can find the answer yourself with a little effort. There is nothing disrespectful about it.
Thread locked.
Thomas

How to get the last SCN number from catalog database

Hi All,
I have a catalog database where my PROD database is registered. Evereyday at 12AM rman takes the hot backup of PROD.
Now I want to create a auxillary database using the last RMAN backup, for this I want to restore using the SCN from the catalog views.
Please help me to get the SCN number from the RC_ views.
Regards,
Bikram

asifkabirdba wrote:
Current SCN:
Use the dbms_flashback package to get the current SCN. This value will be used during instantiation at the destination site, as well as by RMAN when duplicating the database.
SET SERVEROUTPUT ON
DECLARE
until_scn NUMBER;
BEGIN
until_scn:=
DBMS_FLASHBACK.GET_SYSTEM_CHANGE_NUMBER;
DBMS_OUTPUT.PUT_LINE('Until SCN: ' || until_scn);
END;
Regards
Asif KabirHello,
i am a bit confused,
SELECT CURRENT_SCN FROM V$DATABASE;
6272671324
and from your package
SET SERVEROUTPUT ON
DECLARE
until_scn NUMBER;
BEGIN
until_scn:=
DBMS_FLASHBACK.GET_SYSTEM_CHANGE_NUMBER;
DBMS_OUTPUT.PUT_LINE('Until SCN: ' || until_scn);
END;Until SCN: 6272671267
why are they different, and why first result is lower than yours? can you explain please, thank you
Ugur MIHCI

Select data from DataBase

Hi;
I try to select data from DataBase, But I get the following error, Could anyone help? thanks.
Exception in thread "main" java.lang.ClassNotFoundException: oracle.jdbc.driver.
OracleDriver
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at Lookup.main(Lookup.java:12)
import java.sql.*;
import java.io.*;
import java.util.*;
public class Lookup {
 public static void main(String[] args)
 throws SQLException, ClassNotFoundException {
 String dbUrl = "jdbc:oracle:thin:@augur.scms.waikato.ac.nz:1521:comp319";
 String user = "group029";
 String password = "group029";
 // Load the driver (registers itself)
 Class.forName("oracle.jdbc.driver.OracleDriver");
 Connection c = DriverManager.getConnection(dbUrl, user, password);
 Statement s = c.createStatement();
 //SQL code:
 ResultSet r =
 s.executeQuery("SELECT * " +"FROM movie");
 StringBuffer results= new StringBuffer();
 ResultSetMetaData metaData = r.getMetaData();
 int numberOfColumns = metaData.getColumnCount();
 for(int i=1; i<=numberOfColumns; i++)
 results.append(metaData.getColumnName(i)+"\t");
 results.append("\n");
 while (r.next()){
 for( int i=1; i <=numberOfColumns; i++)
 results.append(r.getObject(i)+"\t");
 results.append("\n");
 s.close();
}

It's a classpath problem. Either you mistyped the class name, or you don't have the class in your classpath. I think Oracle's drivers come in db12.zip or db12.jar or some such. Whatever that jar or zip file is, it has to be in your classpath, but it's not.
Or it is in your classpath, but you're in an appserver context where the classloader that the container provides for your app uses something other than the classpath variable. For instance, in tomcat, the jar file would be uder webapps/yourApplication/WEB-INF/lib I think.

Thread : select switchover_status from v$database

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