Addition adding a new database

[T G Manikandan]

You can use the $ORACLE_HOME/bin/dbassist to create the new database.
YOu have a good GUI kind of creating a database where you can select the options.

Else
you should do as

1.copy the initialization file to the new instance.
$cp $ORACLE_HOME/dbs/init.ora init"".ora
2.Edit the init"instance-name".ora
to change the database_name
and set the values for the Shared_pool_size,DB_BLOCK_BUFFERS,etc..
Also change the location of your control files to the location you want to.

save the file

3.set you ORACLE_SID parameter to the new instance name.

eg.ORACLE_SID=DB001;export ORACLE_SID

check the value of the ORACLE_SID whether it is set properly.

echo $ORACLE_SID

4.$svrmgrl
svrmgr>connect internal

svrmgr>startup nomount pfile=$ORACLE_HOME/dbs/init"newinstance-name".ora

Now your instance will be started

svrmgr>create database "database-name"
>controlfile reuse
>datafile '>logfile group 1 ('oracle_home/dbs/log1NEW_NAME.dbf') size 10 M,
> group 2 ('oracle_home/dbs/log2NEW_NAME.dbf') size 10 M

check for the size for your database.
The datafile created is for the default system tablespace.

now after the database is created,you have to run the catalog.sql and catproc.sql

svrmgr>@$ORACLE_HOME/rdbms/admin/catalog
svrmgrl>@$ORACLE_HOME/rdbms/admin/catproc

After you run the two scripts.

create a seperate tablespace for rollback segment
svrmgr>create tablespace rollback datafile '/home/oracle/rollback.dbf' size 100 M;
svrmgrl>create rollback segment R01 tablespace rollback storage(maxextents unlimited);
svrmgrl>alter rollback segment R01 online;
Now the rollback segment is created .
Now make the entry in the
$ORACLE_HOME/dbs/init"new-instance".ora
In that enter R01 in the place of the
rollback segment in the file.

create the required tablespace ,like if you require user tablespace
like the one for the rollback segment.


Thanks

[T G Manikandan]

You can use the $ORACLE_HOME/bin/dbassist to create the new database.
YOu have a good GUI kind of creating a database where you can select the options.

Else
you should do as

1.copy the initialization file to the new instance.
$cp $ORACLE_HOME/dbs/init.ora init"".ora
2.Edit the init"instance-name".ora
to change the database_name
and set the values for the Shared_pool_size,DB_BLOCK_BUFFERS,etc..
Also change the location of your control files to the location you want to.

save the file

3.set you ORACLE_SID parameter to the new instance name.

eg.ORACLE_SID=DB001;export ORACLE_SID

check the value of the ORACLE_SID whether it is set properly.

echo $ORACLE_SID

4.$svrmgrl
svrmgr>connect internal

svrmgr>startup nomount pfile=$ORACLE_HOME/dbs/init"newinstance-name".ora

Now your instance will be started

svrmgr>create database "database-name"
>controlfile reuse
>datafile '>logfile group 1 ('oracle_home/dbs/log1NEW_NAME.dbf') size 10 M,
> group 2 ('oracle_home/dbs/log2NEW_NAME.dbf') size 10 M

check for the size for your database.
The datafile created is for the default system tablespace.

now after the database is created,you have to run the catalog.sql and catproc.sql

svrmgr>@$ORACLE_HOME/rdbms/admin/catalog
svrmgrl>@$ORACLE_HOME/rdbms/admin/catproc

After you run the two scripts.

create a seperate tablespace for rollback segment
svrmgr>create tablespace rollback datafile '/home/oracle/rollback.dbf' size 100 M;
svrmgrl>create rollback segment R01 tablespace rollback storage(maxextents unlimited);
svrmgrl>alter rollback segment R01 online;
Now the rollback segment is created .
Now make the entry in the
$ORACLE_HOME/dbs/init"new-instance".ora
In that enter R01 in the place of the
rollback segment in the file.

create the required tablespace ,like if you require user tablespace
like the one for the rollback segment.


Thanks

[T G Manikandan]

sorry,
I clicked twice as the post was not submitted.
So many times....


Sorry

[Jeanine Kone]

Don't forget to update your /etc/oratab file to add the new database also. If you don't, it will not start and stop on reboot. In addition, some of the env file use it to get the ORACLE_HOME of the database, etc.

I have my env set up to prompt me for the database and then set my env variables appropriately. Here are the lines I added to my .profile to do the prompting and then call the oraenv script:

# Set up the Oracle environment
SIDLIST=`awk -F: '/^[^#]/{printf "%s ",$1}' /etc/oratab`
echo "SIDs on this machine are: $SIDLIST"
ORAENV_ASK=
. /usr/local/bin/oraenv

Hope this helps