Let’s see how to access EM express for various types of databases.

Oracle 12c has introduced multitenant architecture in which we can have different types of databases:

– CDB’s
– PDB’s
– Non CDB’s

Let’s see how to access EM express for various types of databases:

Accessing EM express for CDB’s

At the root container, data is displayed for the entire CDB, and all actions taken impact all containers.  Data pertaining to a PDB, such as a user or a SQL statement, is qualified with the container name.  The actions a user can perform at the root container include:

– viewing and setting initialization parameters;
– administering common users and privileges; and
– managing memory configuration, undo information and redo logs.

– Find out the port on which EM Express is configured:

Three methods are available:

1. When dbca completes, note down the  the port on which EM Express is configured as displayed.

2.Find out status of the listener

[oracle@em12c /]$ lsnrctl status
(output trimmed)
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1522)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=em12c.oracle.com)(PORT=1522)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcps)(HOST=em12c.oracle.com)(PORT=5500))(Security=(my_wallet_directory=/u01/app/oracle/admin/cdb1/xdb_wallet))(Presentation=HTTP)(Session=RAW))

3. Login to CDB as issue the  sql query as follows:

SQL> conn sys/oracle@cdb1 as sysdba
select dbms_xdb_config.gethttpsport from dual;

GETHTTPSPORT
------------
5500

– Access  EM express by entering following URL in the browser:

https://<hostname>:5500/em

 

Accessing EM express for PDB’s

When a user is connected to a PDB, data is displayed only for the container in question, and actions only impact that container.

– Login to PDB

SQL> alter session set container=pdb1;

sho con_name

CON_NAME
------------------------------
PDB1

– Configure the port (5501) for EM express as follows:

SQL> exec dbms_xdb_config.sethttpsport(5501);

– Confirm that EM has been configured on specified port (1501)

SQL> select dbms_xdb_config.gethttpsport from dual;

GETHTTPSPORT
------------
5501

– Access  EM express by entering following URL in the browser:

https://<hostname>:5501/em

Accessing EM express for Non-CDB’s

For a non- CDB, and all actions a user can perform in a non-CDB are available:

– viewing and setting initialization parameters;
– administering common users and privileges;
– managing memory configuration, undo information and redo logs.
– managing tablespaces etc.

– Find out the port on which EM Express is configured:

Two methods are available:

1. When dbca completes, note down the  the port on which EM Express is configured as displayed.

2.  Login to non-CDB (Note container name as Non consolidated)

SQL> conn sys/oracle@ncdb as sysdba

sho con_name

CON_NAME
------------------------------
Non Consolidated

– Issue the  sql query as follows:

select dbms_xdb_config.gethttpsport from dual;

GETHTTPSPORT
------------
5502

– Access  EM express by entering following URL in the browser:

https://<hostname>:5502/em