Export database:
The first step: first use plsql connect to the database, click on the file-> new-> sql window, create a new window.
Perform the following sentence sql
select 'alter table '||table_name||' allocate extent;' from user_tables where num_rows=0；
Sql sentence execution order to the library, empty table can also be exported.
Step: WIN + R key is pressed, the input cmd, dos into the window.
In dos window execute the following command sentence can export library
exp sys/[email protected]:1521/orcl file=D:\test.dmp
Description:
sys: is the database user name
oracle: the database user password
127.0.0.1:1521/orcl: is the address of the remote database
D: \ test.dmp: Export database is to be saved addresses
Import database:
The first step: first use plsql connect to the database, click on the file-> new-> sql window, create a new window.
Step 2: Create a table space using the following sql sentence
create tablespace TEST_BIZ datafile 'E:\\TEST_BIZ.dbf' size 50M autoextend on next 10M maxsize unlimited;
Description:
TEST_BIZ: is the name of the table space to be created
E: \\ TEST_BIZ.dbf: table space is put there
The third step: Use the following phrase sql create user
create user TEST_USER identified by TEST_PASSWORD default tablespace TEST_BIZ;
Description:
TEST_USER: Username created
TEST_PASSWORD: user password created
TEST_BIZ: The user table space
Step four: Use the following sql to authorized users
grant dba to TEST_USER;
Step five: WIN + R key is pressed, the input cmd, dos into the window.
Execute the following command in the dos window
imp TEST_USER/[email protected]:1521/orcl file=D:\test.dmp full=y ignore=y
Description:
TEST_USER: Username
TEST_PASSWORD: Password
127.0.0.1:1521/orcl: remote host address
D: \ test.dmp: Location dmp file