Search This Blog

Thursday 5 September 2013

ORACLE BASIC Developer & DBA COMMANDS

After DB installation Ensure the following services are running.
1. Oracle service<Instance Name>
2. Oracle listener service

Goto sqlplus enter userid/pwd or userid/pwd@service_name
If the username and pwd is correct, we would be logged into the oracle and will get the SQL Prompt
SQL>

To Create Table Space:
Create a folder in local drive like BOSE_DBF
SQL> CREATE TABLESPACE KK DATAFILE 'E:\BOSE_DBF\BOSE.DBF' SIZE 50M;
Tablespace created.

To Increase the Tablespace Size:
• Increasing the Existing Datafile

SQL> ALTER DATABASE DATAFILE 'E:\BOSE_DBF\BOSE.DBF' RESIZE 100M;
Database altered.

Appending additional DATA file to the Tablespace

SQL> alter tablespace kk add datafile 'e:\bose_dbf\bose1.dbf' size 20M;
Tablespace altered.


To create DB user:
SQL> create user <username> identified by <password> default tablespace <Tablespace Name>
Temporary tablespace <Temporary tablespace name>;

SQL> create user bose identified by bose default tablespace bose temporary tablespace temp;
User created.


SQL> show user;
USER is "SYS"

Granting Access to the USER:
SQL> grant create session,imp_full_database to <user name>
SQL> grant create session,imp_full_database to bose;
Grant succeeded.

Granting DBA Access to the USER:
SQL> grant dba to user
SQL> grant dba to bose;
Grant Succeeded

Altering USER:
SQL> alter user bose quota unlimited on <username>;
SQL> alter user bose quota unlimited on bose;
User altered.

Now we will exit from the sys user and will connect our newly created to user to import or export the db objects

SQL>conn bose/bose

Syntax for Import:
• C:\>imp <username>/<password> file=<dumpname.dmp> log=<logfilename.log> full=y
C:\>imp bose/bose file=bose.dmp log=boseimp.log full=y

• C:\>imp <username>/<password> file=<dumpname.dmp> log=<logfilename.log> fromuser=<fromusername> touser=<tousername>

• Before import we need to check the tablespace free space.
SYSTEM -200M
INDX -100M
DEFAULT TABLESPACE (BOSE) 

C:\>imp bose/bose file=bose.dmp log=boseimp.log fromuser=hr touser=bose
Import completed successfully with warnings.

After Import Connect to the Respective DB user
C:\>sqlplus

Enter username: bose/bose

SQL>@c:\compile – it will compile all the Invalid objects run the compile script atlease 4 times.

Exporting DB user:
Syntax:
C:\> exp <username>/<password> file=<filename.dmp> log=<logname.log>
C:\>exp bose/bose file=bose.dmp log=kk.log
.
.
Export terminated successfully without warnings.

Taking full DB Export:
 C:\>exp system/<system pwd> file=<filename.dmp log=logfile.log full=y
C :\> exp system/system file=fulldump.dmp log=fulldump.log full=y

To drop DB user:
SQL> drop user kk cascade;
              User dropped.

To drop DB user object:
Connect to specified Database
SQL> CONN bose/bose
SQL> SHOW USER
BOSE
SQL>@C:\drop.sql
To Drop Tablespace:
SQL> drop tablespace bose including contents;
Tablespace dropped.

SQL> select username from dba_users:
It will display all the username in the DB

SQL> select name from v$database;
NAME
ORCL
It will display the DB name

SQL> select count(*) from user_objects;
           It will display the number of objects in that schema.

Cheers!
Bose

No comments:

Post a Comment

OBIEE 12c to OAS Migration

 Hi All, I have migrated successfully few projects from BI 12c to OAS 6.4. If  anyone wants help then please reach Me! Cheers! Bose

Recent Posts