oracle基础操作

1.linux中的oracle用户登录:

2.使用:

sqlplus /nolog进入sqlplus

3.连接:

conn /as sysdba

4.创建表空间指定存储文件:

SQL> create tablespace bbsp_data datafile ‘/oradata/bbsp_data.dbf‘ size 1024M autoextend on next 50M maxsize unlimited;

5.为指定表空间创建用户名,设置密码

SQL> create user bbspyz identified by bbspyz default tablespace bbsp_data;

6.修改用户默认表空间:

SQL> alter user bbspyz default tablespace bbsp_data;

7.给用户授权:

SQL> grant create session,dba,connect,resource to bbspyz;

SQL> alter user bbspyz account unlock;

8.创建存储目录:

SQL>create directory bbsp as ‘/oradata‘;

9.增加数据dbf数据存储文件(一个文件最大存储32G):

SQL>alter tablespace bbsp_data add datafile ‘/oradata/bbsp_data2.dbf‘ size 1024M autoextend on next 100m maxsize unlimited;

10.数据泵导入(linux命令):

linux命令:impdp bbspyz/bbspyz directory=bbsp dumpfile=bbsp_202008100200.dmp remap_schema=bbsp:bbspyz remap_tablespace=users:bbsp_data

(1).directory:导入文件地址,

(2).remap_schema:从用户bbsp到用户bbspyz

(3).remap_tablespace:从表空间users到表空间bbsp_data

11.数据泵导出(linux命令):

expdp bbspyz/bbspyz@57.25.1.141:1521/bbsp dumpfile=bbsp20200817.dmp directory=bbsp

(1).directory:导出文件地址,

(2).remap_schema:导出用户bbspyz

(3).remap_tablespace:默认表空间bbsp_data