oracle命令杂记

版权声明：本文为博主原创文章，未经博主允许不得转载。讨论交流群:59116211 https://blog.csdn.net/hao474798383/article/details/70259946

--表空间
CREATE TABLESPACE sdt
DATAFILE 'F:\tablespace\demo' size 800M
         EXTENT MANAGEMENT LOCAL SEGMENT SPACE MANAGEMENT AUTO; 
--索引表空间
CREATE TABLESPACE sdt_Index
DATAFILE 'F:\tablespace\demo' size 512M         
         EXTENT MANAGEMENT LOCAL SEGMENT SPACE MANAGEMENT AUTO;     


--2.建用户
create user demo identified by demo 
default tablespace demo;
 
--3.赋权
grant connect,resource to demo;
grant create any sequence to demo;
grant create any table to demo;
grant delete any table to demo;
grant insert any table to demo;
grant select any table to demo;
grant unlimited tablespace to demo;
grant execute any procedure to demo;
grant update any table to demo;
grant create any view to demo;


添加字段的语法：alter table tablename add (column datatype [default value][null/not null],….);
修改字段的语法：alter table tablename modify (column datatype [default value][null/not null],….);
删除字段的语法：alter table tablename drop (column);


--导入导出命令   
ip导出方式： exp demo/[email protected]:1521/orcl file=f:/f.dmp full=y
exp demo/demo@orcl file=f:/f.dmp full=y
imp demo/demo@orcl file=f:/f.dmp full=y ignore=y