通过CMD登录SQLPLUS 的语句
C:/Users/Administrator>sqlplus /nolog
SQL> conn sys/pwd as sysdba;
导入导出数据库(来源网络):
1 将数据库TEST完全导出,用户名system 密码manager 导出到D:/daochu.dmp中
exp system/manager@TEST file=d:/daochu.dmp full=y
2 将数据库中system用户与sys用户的表导出
exp system/manager@TEST file=d:/daochu.dmp owner=(system,sys)
3 将数据库中的表table1 、table2导出
exp system/manager@TEST file=d:/daochu.dmp tables=(table1,table2)
4 将数据库中的表table1中的字段filed1以"00"打头的数据导出
exp system/manager@TEST file=d:/daochu.dmp tables=(table1) query=/" where filed1 like '00%'/"
要想压缩,在上面命令后面 加上 compress=y 就可以了
数据的导入
1 将D:/daochu.dmp 中的数据导入 TEST数据库中。
imp system/manager@TEST file=d:/daochu.dmp
上面可能有点问题,因为有的表已经存在,然后它就报错,对该表就不进行导入。
在后面加上 ignore=y 就可以了。
2 将d:/daochu.dmp中的表table1 导入
imp system/manager@TEST file=d:/daochu.dmp tables=(table1)
新建表空间
create tablespace demo datafile 'E:/oracle/TableSpace/tsdemo.dbf' size 100M autoextend on next 1M maxsize unlimited;
新建用户,并赋予默认空间
create user demouser
identified by "userpwd"
default tablespace demo
temporary tablespace TEMP
profile default;
grant dba to demo; //复DBA权限
grant unlimited tablespace to demo;

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No,youshouldnotusetherootuserinMySQLforyourproduct.Instead,createspecificuserswithlimitedprivilegestoenhancesecurityandperformance:1)Createanewuserwithastrongpassword,2)Grantonlynecessarypermissionstothisuser,3)Regularlyreviewandupdateuserpermissions

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