Removable tablespace

Catalog

1. Create a table space for experiments

2 Create a test user trans

3 Modify user rights

4 Create a lab table

5 Change the mobile tablespace to read-only mode

6 Use the data pump to export TRANS_TBS Tablespace metadata

7 Delete TRANS_TBS Table space

8 Use data pump to import removable table space metadata

9 Validation data

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1. Create a table space for experiments

$ . oranev
$ sqlplus / as sysdba
SQL>conn / as sysdba
SQL>create tablespace trans_tbs datafile '/home/oracle/trans01.dbf' 
     2  size 20M;

  

 2 Create a test user trans

SQL>create user trans identified by trans
     2  default tablespace trans_tbs;

 3 Modify user rights

SQL>alter user trans quota unlimited on trans_tbs;
SQL>grant connect to trans;
SQL>grant create table to trans;
SQL>grant select on hr.employees to trans;

 4 Create a lab table

SQL>conn trans/trans;

SQL>create table trans_tb tablespace trans_tbs
    2   as select * from hr.employees;

 5 Change the mobile tablespace to read-only mode

SQL>conn / as sysdba

 6 Use the data pump to export TRANS_TBS Tablespace metadata

$ expdp system/oracle_4U directory=udbs_dir dumpfile=trans.dump TRANSPORT_TABLESPACES=trans_tbs_

 7 Delete TRANS_TBS Table space

SQL>drop tablespace trans_tbs including contents;
SQL>conn trans/trans
SQL>select count(*) from trans_tb;

 

Be careful ： Do not delete data files at the same time .

8 Use data pump to import removable table space metadata

$ impdp system/oracle_4U directory=udbs_dir dumpfile=trans.dump transport_datafiles='/homeoracle/trans01.dbf'_

 9 Validation data

SQL>conn / as sysdba
SQL>select name from v$database;
SQL>select count(*) from trans.trans_tb;