oracle常用命令集合

创建数据表空间
create SMALLFILE tablespace dataSpace datafile ‘E:\oracle\product\10.2.0\oradata\orcl\dataSpace.dbf‘ SIZE 50M autoextend on next 10M maxsize unlimited extent management local ;

创建临时表空间
create temporary tablespace tempSpace tempfile ‘E:\oracle\product\10.2.0\oradata\orcl\tempSpace.dbf‘ size 100m autoextend on next 32m maxsize 2048m extent management local;

查看表空间
select spaceName from dba_tablespaces;

删除表空间(临时表空间)及关联数据
drop tablespace spaceName including contents and datafiles;

创建用户并指定表空间
create user userName identified by password default tablespace dataSpace Temporary TABLESPACE tempSpace;

删除用户及用户的所有对象
drop user userName cascade;//cascade参数是级联删除该用户所有对象

授权
grant connect,resource,dba to userName;

查看用户
select userName from dba_users;

导入数据
imp userName/password@oracleService file=e:\orcl.dmp fromuser=userName touser=userName grants=no table=tableName   

导出数据
exp userName/password@oracleService file=e:\orcl.dmp

恢复删除的表
FLASHBACK TABLE tableName TO BEFORE DROP;

查看回收站的表
SELECT * FROM user_recyclebin WHERE original_name=‘tableName‘;

恢复几个小时以前的数据
select * from tableName as of timestamp(systimestamp - INTERVAL‘1‘hour)

添加非空字段
alter table tableName add (columnName number(10));
alter table tableName modify columnName not null;

删除字段
alter table tableName drop COLUMN columnName;

存储过程输出，使oracle能够使用自带的输出方法 dbms_output put_line(‘XX‘);
set serveroutput on 

存储过程创建表权限不足
GRANT CREATE ANY TABLE TO userName;