日常工作需要记住这两个视图，检查pdb状态

$sqlplus / as sysdba

SQL*Plus: Release 12.1.0.2.0 Production on Sat Jan 20 17:52:42 2018

Copyright (c) 1982, 2014, Oracle. All rights reserved.

Connected to:

Oracle Database 12c Enterprise Edition Release 12.1.0.2.0 - 64bit Production

With the Partitioning, OLAP, Advanced Analytics and Real Application Testing options

SQL> show con_name

CON_NAME

------------------------------

CDB$ROOT

SQL> desc cdb_pdbs;

Name Null? Type

----------------------------------------- -------- ----------------------------

PDB_ID NOT NULL NUMBER

PDB_NAME NOT NULL VARCHAR2(128)

DBID NOT NULL NUMBER

CON_UID NOT NULL NUMBER

GUID RAW(16)

STATUS VARCHAR2(9)

CREATION_SCN NUMBER

VSN NUMBER

LOGGING VARCHAR2(9)

FORCE_LOGGING VARCHAR2(3)

FORCE_NOLOGGING VARCHAR2(3)

CON_ID NOT NULL NUMBER

SQL> col pdb_name for a30

SQL> select pdb_id,pdb_name,status from cdb_pdbs;

PDB_ID PDB_NAME STATUS

---------- ------------------------------ ------------------

2 PDB$SEED NORMAL

3 PDB1 NORMAL

4 PDB2 NORMAL

5 PDB3 NORMAL

6 PDB4 NORMAL

SQL> desc v$pdbs;

Name Null? Type

----------------------------------------- -------- ----------------------------

CON_ID NUMBER

DBID NUMBER

CON_UID NUMBER

GUID RAW(16)

NAME VARCHAR2(30)

OPEN_MODE VARCHAR2(10)

RESTRICTED VARCHAR2(3)

OPEN_TIME TIMESTAMP(3) WITH TIME ZONE

CREATE_SCN NUMBER

TOTAL_SIZE NUMBER

BLOCK_SIZE NUMBER

RECOVERY_STATUS VARCHAR2(8)

SNAPSHOT_PARENT_CON_ID NUMBER

SQL> set line 200

SQL> select con_id,name,open_mode from v$pdbs;

CON_ID NAME OPEN_MODE

---------- ------------------------------------------------------------ --------------------

2 PDB$SEED READ ONLY

3 PDB1 READ WRITE

4 PDB2 READ WRITE

5 PDB3 READ WRITE

6 PDB4 READ WRITE

SQL>