--登陸wcb數據庫
--wcb數據庫 查看當前用戶表空間:User
select username,default_tablespace from user_users;
--登陸A數據庫服務器
--進入dpdump文件夾
cd /home/oracle/admin/ora11/dpdump
--執行導出數據庫命令
expdp userid=wcb/wcb dumpfile=wcb%U.dmp LOGFILE=Expdp_wcb.log PARALLEL=4 SCHEMAS=wcb COMPRESSION=ALL CONTENT=ALL
--若執行報錯
ORA-39145: directory object parameter must be specified and non-null
--登陸數據庫,查詢
sqplus /"as sysdba"
--查詢data_pump_dir文件目錄是否存在
select * from dba_directories;
--若不存在則創建,並賦予wcb用戶權限
CREATE DIRECTORY data_pump_dir AS '/opt/oracle/admin/orcl/dpdump'
grant read,write on directory data_pump_dir to chgdb;
--若存在,則賦予wcb用戶導出權限
grant exp_full_database to wcb;
--再執行導出命令
expdp userid=wcb/wcb dumpfile=wcb%U.dmp LOGFILE=Expdp_wcb.log PARALLEL=4 SCHEMAS=wcb COMPRESSION=ALL CONTENT=ALL
--導出成功,在另一個數據,創建wcb用戶
--若wcb用戶存在,則變當前數據名
--更改用戶名 名稱
--查詢oracle數據用戶名隊員序列
select user#, name from user$ where name = 'WCB';
--更新oracle用戶名稱
update user$ set name = 'WCB1' where user# = 173;
--刷新數據庫
alter system checkpoint;
alter system flush shared_pool;
--不存在用戶,創建
--創建oracle用戶
create user wcb identified by wcb;
--error user CHGDB lacks CREATE SESSION privilege; logon denied
grant connect to wcb;
grant resource to wcb;
grant create session to wcb;
--若不存在User表空間,創建
--創建用戶表空間
create tablespace USER
datafile '/home/oracle/admin/ora11/SALES_DATA01.dbf' size 10m autoextend on next 10m maxsize 100m,
'/home/oracle/admin/ora11//SALES_DATA02.dbf' size 10m autoextend on next 10m maxsize
unlimited,'/home/oracle/admin/ora11//SALES_DATA03.dbf' size 10m;
--導入:
cd /home/oracle/admin/ora11/dpdump
impdp userid=wcb/wcbdumpfile=wcb%U.dmp LOGFILE=Expdp_wcb.log PARALLEL=4 SCHEMAS=wcb
--若報錯:
select * from dba_directories;
CREATE DIRECTORY data_pump_dir AS '/opt/oracle/admin/orcl/dpdump'
grant read,write on directory data_pump_dir to wcb;
grant imp_full_database to wcb;
--再導入成功