Oracle Database 12c Release 2 is here!!!!!!!!

Well, we all are aware that Oracle 12c release 2 is in the market. It is now available for download in OTN and edelivery sites.



Download link  OTN Link



Some of the new features in 12C RELEASE 2 are

1. Lock inactive account automatically after specified number of days. 

Addition of new INACTIVE_ACCOUNT_TIME parameter resource parameter under dba_profiles.

 By default, it is set to UNLIMITED.
 The minimum setting is 15 and the maximum is 24855.



SQL> select RESOURCE_NAME,limit from dba_profiles where profile='DEFAULT';

RESOURCE_NAME                               LIMIT
------------------------------------------- -----------------------
COMPOSITE_LIMIT                             UNLIMITED
SESSIONS_PER_USER                           UNLIMITED
CPU_PER_SESSION                             UNLIMITED
CPU_PER_CALL                                UNLIMITED
LOGICAL_READS_PER_SESSION                   UNLIMITED
LOGICAL_READS_PER_CALL                      UNLIMITED
IDLE_TIME                                   UNLIMITED
CONNECT_TIME                                UNLIMITED
PRIVATE_SGA                                 UNLIMITED
FAILED_LOGIN_ATTEMPTS                       10
PASSWORD_LIFE_TIME                          180
PASSWORD_REUSE_TIME                         UNLIMITED
PASSWORD_REUSE_MAX                          UNLIMITED
PASSWORD_VERIFY_FUNCTION                    NULL
PASSWORD_LOCK_TIME                          1
PASSWORD_GRACE_TIME                         7
INACTIVE_ACCOUNT_TIME                       UNLIMITED ----------- > This is the resource_name introduced in oracle 12.2.

17 rows selected.

To make an account lock automatically after 30 days of inactivity, Create a profile by setting INACTIVE_ACCOUNT_TIME to 30 and Set the profile to that user.



   CREATE PROFILE "TEST"
    LIMIT
         COMPOSITE_LIMIT UNLIMITED
         SESSIONS_PER_USER UNLIMITED
         CPU_PER_SESSION UNLIMITED
         CPU_PER_CALL UNLIMITED
         LOGICAL_READS_PER_SESSION UNLIMITED
         LOGICAL_READS_PER_CALL UNLIMITED
         IDLE_TIME UNLIMITED
         CONNECT_TIME UNLIMITED
         PRIVATE_SGA UNLIMITED
         FAILED_LOGIN_ATTEMPTS 10
         PASSWORD_LIFE_TIME 15552000/86400
         PASSWORD_REUSE_TIME UNLIMITED
         PASSWORD_REUSE_MAX UNLIMITED
         PASSWORD_VERIFY_FUNCTION NULL
         PASSWORD_LOCK_TIME 86400/86400
         PASSWORD_GRACE_TIME 604800/86400
         INACTIVE_ACCOUNT_TIME 30;

SQL>  select RESOURCE_NAME,limit from dba_profiles where profile='TEST' and resource_name='INACTIVE_ACCOUNT_TIME';

RESOURCE_NAME                               LIMIT
------------------------------------------- -----------------------
INACTIVE_ACCOUNT_TIME                       30

SQL> CREATE USER testuser identified by testuser profile TEST;

User created.





2.Spool CSV in Oracle 12.2

Before this release we used to get the spool in txt or html format using SET MARKUP. But with this release, we can get the spool in .csv format.
Below is the snippet.

SQL> SET MARKUP CSV ON QUOTE OFF
SQL> SET MARKUP CSV ON DELIMITER |
SQL> select * from DBA_USERS where rownum < 10;


3. SQLPLUS history 

In this release, sqlplus can keep the history and it has to be enabled manually. Below is the snippet

SQL> set history on

SQL> select * from v$database;

NAME
———
SAM


SQL> history
1 select name from v$database;


SQL> exit

You can run “show hist” to be sure that the history is enabled:


SQL> SHOW HIST
history is ON and set to “100”

You can delete all history by running “hist clear”:

SQL>  HIST CLEAR
SQL>  HIST
SP2-1651: History list is empty.

The following example shows you how to enable or disable command history, and how to check the command history status:

SQL> set history on

SQL> show history
History is ON and set to “100”

SQL> set history off

SQL> show history
History is OFF

— To keep history of 2000 sql command.



SQL> set history 2000

SQL> show history
History is ON and set to "2000"


4. Parfile contents can be seen the expdp/impdp log file. Another change is introduction of parallel option for metadata using expdp/impdp