PDB管理
PDB检查
--查看pdb信息 or dba_pdbs
set lines 160
col name for a20
col open_time for a40
select con_id,dbid,name,open_mode,open_time,creation_time from v$pdbs;
--查看CDB部分信息
set lines 160
col con_name for a30
select c.con_id,c.name con_name,t.tablespace_name,t.contents,t.status
from v$containers c,cdb_tablespaces t where c.con_id=t.con_id and t.contents='UNDO'
order by 1,2;
--跟随CDB启动
alter pluggable database firsoul01 save state;
--查看每个pdb大小
select c.name,round(sum(s.bytes/1024/1024/1024),2) size_gb
from cdb_segments s,v$containers c where c.con_id=s.con_id group by c.name order by 2 desc;
--连接 or tnsnames
alter session set container=orclpdb;
--查看pdb的服务名
col pdb for a15
col name for a20
col network_name for a20
SELECT PDB, name,NETWORK_NAME, CON_ID FROM CDB_SERVICES
WHERE PDB IS NOT NULL AND CON_ID > 2 ORDER BY PDB;
--查看历史pdb信息
col db_name for a15
col pdb_name for a15
col CLONED_FROM_PDB_NAME for a20
SELECT DB_NAME, CON_ID, pdb_id,PDB_NAME, OPERATION, OP_TIMESTAMP, CLONED_FROM_PDB_NAME
FROM CDB_PDB_HISTORY WHERE CON_ID<>pdb_id and pdb_id>2
and db_name=(select name from v$database) ORDER BY PDB_ID;
PDB创建
--创建一个默认表空间USERS，roles默认为pdb_dba,与dbca方式类似，dbca方式会自动open 该pdb。
create pluggable database pdb3 admin user pdbadmin identified by pdbadmin roles=(dba) default tablespace users datafile '+data' size 250M autoextend on;
--没有默认表空间 USERS，此时数据库分配SYSTEM表空间为pdb默认表空间
create pluggable database pdb1 admin user pdbadmin identified by pdbadmin;
--指定pdb文件位置
create pluggable database pdb4 admin user pdbadmin identified by pdbadmin roles=(dba) default tablespace users datafile '/disk1/oracle/dbs/pdb4/users01.dbf' size 250M autoextend on
FILE_NAME_CONVERT = ('/disk1/oracle/dbs/pdbseed/', '/disk1/oracle/dbs/pdb4/')
PATH_PREFIX = '/disk1/oracle/dbs/pdb4/';
--从已存在的pdb克隆
CREATE PLUGGABLE DATABASE newpdb FROM pdb4
FILE_NAME_CONVERT = ('/disk1/oracle/dbs/pdb4/','/disk1/oracle/dbs/newpdb/')
PATH_PREFIX = '/disk1/oracle/dbs/newpdb';
--远程克隆
create pluggable database pdb8 from
mypdb@clonePdb FILE_NAME_CONVERT=('/u01/app/oracle/oradata/mypdb','/u01/app/oracle/oradata/TESTCDB/pdb8');
--查看 pdb_dba权限,也就是pdbadmin具有创建pdb的权限
col granted_role for a20
select granted_role,ADMIN_OPTION from dba_role_privs where grantee='PDBADMIN';
select * from DBA_SYS_PRIVS where grantee='PDB_DBA';
--删除PDB
drop pluggable database pdb1 including datafiles;
PDB闪回
--开启
alter system set db_recovery_file_dest_size=2g;
alter system set db_recovery_file_dest='+ARCH';
alter database flashback on;
--查看闪回日志保留时间
show parameter flashback
--检查闪回日志
select file_type,percent_space_used,number_of_files from v$recovery_area_usage;
闪回数据库，是从数据文件的当前状态开始，然后应用闪回日志，将它们回滚到过去的某一个状态。
还原点
--创建还原点,如果未开闪回，可使用guarantee flashback database 声明还原点
create restore point before_release guarantee flashback database;
--查看
list restore point all; --无法辨别哪个pdb
--or
set lines 200
col time for a20
col name for a20
col cname for a15
select r.scn, r.DATABASE_INCARNATION# db_INCARNATION,to_char(r.time,'yyyy-mm-dd hh24:mi:ss') time,
r.GUARANTEE_FLASHBACK_DATABASE GUARANTEE,r.name,r.PDB_RESTORE_POINT,r.CLEAN_PDB_RESTORE_POINT,c.name cname
from v$restore_point r,v$containers c where r.con_id=c.con_id
union all
select r.scn, r.DATABASE_INCARNATION# db_INCARNATION,to_char(r.time,'yyyy-mm-dd hh24:mi:ss') time,
r.GUARANTEE_FLASHBACK_DATABASE GUARANTEE,r.name,r.PDB_RESTORE_POINT,r.CLEAN_PDB_RESTORE_POINT,'cdb' as cname
from v$restore_point r where r.con_id=0;
--删除
drop restore point before_release;
resetlogs pdb
--对pdb进行闪回,resetlogs redo不会重建，继续记录实例中所有修改操作引起的变化
flashback pluggable database pdb1 to restore point regtest1;
alter pluggable database pdb1 open resetlogs;
--每个pdb以resetlogs方式打开，都会创建一个incarnation,可以通过以下查看
select CON_ID,db_incarnation#,pdb_incarnation#,status,incarnation_time from v$pdb_incarnation
order by con_id;
表空间管理
--查看表空间
break on name skip 1
col name for a20
col tablespace_name for a30
set linesize 200 pagesize 500
select c.name name,f.tablespace_name tablespace_name,
round((d.sumbytes/1024/1024/1024),2) total_without_extend_GB,
round(((d.sumbytes+d.extend_bytes)/1024/1024/1024),2) total_with_extend_GB,
round((f.sumbytes+d.Extend_bytes)/1024/1024/1024,2) free_with_extend_GB,
round((d.sumbytes-f.sumbytes)/1024/1024/1024,2) used_GB,
round((d.sumbytes-f.sumbytes)*100/(d.sumbytes+d.extend_bytes),2) used_percent_with_extend
from (select con_id,tablespace_name,sum(bytes) sumbytes from cdb_free_space group by con_id,tablespace_name) f,
(select con_id,tablespace_name,sum(aa.bytes) sumbytes,sum(aa.extend_bytes) extend_bytes from
(select con_id,nvl(case when autoextensible ='YES' then (case when (maxbytes-bytes)>=0 then (maxbytes-bytes) end) end,0) Extend_bytes
,tablespace_name,bytes from cdb_data_files) aa group by con_id,tablespace_name) d,v$containers c
where (f.con_id=d.con_id and f.tablespace_name=d.tablespace_name) and f.con_id=c.con_id
order by name,used_percent_with_extend desc;
--查看所有数据文件
break on cdbname skip 1
set lines 200 pages 999
col cdbname for a10
col dbfile for a80
select c.name cdbname,d.file# dfile,d.name dbfile,round(f.bytes/1024/1024/1024,2) size_gb,f.AUTOEXTENSIBLE ,d.CREATION_TIME from v$datafile d,v$containers c,cdb_data_files f where c.con_id=d.con_id and d.name=f.file_name order by cdbname,d.creation_time;
用户管理
--查看每个pdb下用户大小
break on pname skip 1
col owner for a20
col pname for a15
select c.name pname,s.owner,round(sum(s.bytes/1024/1024/1024),2) size_gb
from cdb_segments s,v$containers c
where c.con_id=s.con_id group by c.name,s.owner order by 1,3 desc;
--查询用户名、锁定状态、表空间、配置文件、权限---
break on cname skip 1
set pagesize 999
set linesize 150
col cname for a20
col username for a25
col ACCOUNT_STATUS for a20
col DEFAULT_TABLESPACE for a20
col PROFILE for a20
alter session set nls_date_format='yyyy-mm-dd hh24:mi:ss';
select v.name cname,c.username,',',c.ACCOUNT_STATUS,','
,c.DEFAULT_TABLESPACE,',',c.PROFILE,c.CREATED
from cdb_users c,v$containers v where c.con_id=v.con_id order by v.name,c.created;
AWR
awr io收集
set line 200
col table_name format a40
select * from dba_hist_table_settings
where table_name in ('WRH$_FILESTATXS','WRH$_DATAFILE','Tempfile Group','WRH$_TEMPSTATXS');
exec dbms_workload_repository.modify_table_settings(table_name => 'WRH$_FILESTATXS', flush_level => 'TYPICAL');
exec dbms_workload_repository.modify_table_settings(table_name => 'WRH$_DATAFILE', flush_level => 'TYPICAL');
exec dbms_workload_repository.modify_table_settings(table_name => 'Tempfile Group', flush_level => 'TYPICAL');
exec dbms_workload_repository.modify_table_settings(table_name => 'WRH$_TEMPSTATXS', flush_level => 'TYPICAL');