12c 检查pdb数据库状态

日常工作需要记住这两个视图，检查pdb状态

<roidb01:cdb:/home/oracle>$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>