ORACLE基本用法及常用命令

切换ORACLE用户 su - oracle

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重启数据库

sqlplus sys / as sysdba

shutdown immediate

startup;

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导出单个表

exp pls/yjt_pls2013@yjt file=/home/oracle/boz.dmp tables=EDU_VERSION_SET_AREA;

导入单个表

imp pls/yjt_pls2013@yjt file=RMS_RESOURCEBODY.dmp tables=EDU_VERSION_SET_AREA;

exp tms/zzvcomTMS@youjt file=/home/oracle/boz.dmp tables=EDU_VERSION_SET_AREA;

 

 

导出整个库

su -oracle

sqlplus / as sysdba

create or replace directory DumpDir as '/home/oracle/pls';

exit

 

cd /home/oracle/pls

expdp pls/yjt_pls DUMPFILE=zzpls2013.dmp DIRECTORY=DumpDir LOGFILE=zzpls2013.log SCHEMAS=pls

 

 

导入整个库

导入前先删除这个用户

su - oracle

sqlplus system/sys_98921

drop user PLS cascade;

commit;

exit

如果提示 无法删除当前连接的用户

select username,sid,serial# from v$session where username like 'pls';

alter system kill session 'sid,serial#';

 

导入整个库

cd /home/oracle/pls

impdp system/sys_8968888 DUMPFILE=zzpls20130911.dmp DIRECTORY=DumpDir LOGFILE= zzpls20130911.log  SCHEMAS=pls

 

 

约束表dba_constraints

C (check constraint on a table) 

P (primary key) 

U (unique key) 

R (referential integrity) 

V (with check option, on a view) 

O (with read only, on a view)

 

oracle 查看某个表的约束

select * from dba_constraints where owner='PLS' and table_name='SHARE_KNOWLEDG_STRUCTURE';