标签:oracle
1、手工改变数据文件的大小
SQL>conn / as sysdba
SQL>Createtablespace exampletb Datafile ‘E:\ examp01.dbf‘ size 10M ;
SQL>alter database datafile ‘E:\examp01.dbf‘ resize 20m;
SQL>alter database datafile ‘E:\examp01.dbf‘ resize 9m;
2、添加数据文件到表空间
SQL> alter tablespace exampletb add datafile ‘E:\ examp02.dbf‘ size 10M;
3、从表空间中删除数据文件
SQL> alter tablespace exampletb drop datafile ‘E:\ examp02.dbf‘;
4、将表空间设置为只读模式和读写模式
SQL>CREATETABLE scott.student (id NUMBER(5), name VARCHAR2(10)) TABLESPACE exampletb;
SQL>insertinto scott.student(id,name) values(1, ‘lucy‘);
SQL> alter tablespace exampletb read only;
SQL>insertinto scott.student(id,name) values(2, ‘lily‘);
SQL>select* from scott.student;
SQL> alter tablespace exampletb read write;
SQL>insertinto scott.student(id,name) values(2, ‘lily‘);
5、 将表空间设置为在线和离线
SQL> alter tablespace exampletb offline;
SQL>select* from scott.student;
SQL> alter tablespace exampletb online;
SQL>select* from scott.student;
6、查询表空间和数据文件
SQL>select * from v$tablespace;
SQL>select * from dba_tablespaces;
SQL>select * from v$datafile;
SQL> select * from dba_data_files;
标签:oracle
原文地址:http://blog.csdn.net/fangchao3652/article/details/26246139