oracle系统相关表摘要
Oracle在线文档
http://www.oracle.com/pls/db111/homepage
1.查看oracle数据库版本信息
SQL> select * from v$version;
BANNER
--------------------------------------------------------------------------------
Oracle Database 11g Enterprise Edition Release 11.1.0.6.0 - Production
PL/SQL Release 11.1.0.6.0 - Production
CORE 11.1.0.6.0 Production
TNS for Linux: Version 11.1.0.6.0 - Production
NLSRTL Version 11.1.0.6.0 - Production
2.查看临时文件相关信息
SQL> select * from v$tempfile;
FILE# CREATION_CHANGE# CREATION_ TS# RFILE# STATUS ENABLED
---------- ---------------- --------- ---------- ---------- ------- ----------
BYTES BLOCKS CREATE_BYTES BLOCK_SIZE
---------- ---------- ------------ ----------
NAME
--------------------------------------------------------------------------------
1 2151 16-APR-09 3 1 OFFLINE READ WRITE
0 0 20971520 8192
/u01/app/oracle/oradata/orcl/temp01.dbf
3.查看临时表空间相关信息
SQL> select * from v$tablespace;
TS# NAME INC BIG FLA ENC
---------- ------------------------------ --- --- --- ---
0 SYSTEM YES NO YES
1 SYSAUX YES NO YES
11 TEST YES NO YES
3 TEMP NO NO YES
4 USERS YES NO YES
9 UNDOTEMP YES NO YES
4.查看数据文件相关信息
SQL> select file#,ts#,status,blocks,block_size,name from v$datafile
FILE# TS# STATUS BLOCKS BLOCK_SIZE NAME
------ ---- --------- --------- -------------- -------
1 0 SYSTEM 2227200 8192 /u01/app/oracle/oradata/orcl/system01.dbf
2 1 ONLINE 193480 8192 /u01/app/oracle/oradata/orcl/sysaux01.dbf
3 4 ONLINE 4194302 8192 /u01/app/oracle/oradata/orcl/users02.dbf
4 4 ONLINE 4194302 8192 /u01/app/oracle/oradata/orcl/users01.dbf
5 4 ONLINE 1190528 8192 /u01/app/oracle/oradata/orcl/users03
6 11 ONLINE 1280 8192 /u01/app/oracle/product/11.1.0/db_1/dbs/C:oracleoradatadbtest.dbf
7 4 ONLINE 963584 8192 /u01/app/oracle/oradata/orcl/users03.dbf
8 9 ONLINE 131072 8192 /u01/app/oracle/oradata/orcl/undotbs01.dbf
5.更直观地查看表空间所使用的数据文件
SQL> select t.name,d.name,d.status from v$tablespace t,v$datafile d where d.ts#=t.ts# ;
NAME NAME_1 STATUS
------ ------ ------
SYSTEM /u01/app/oracle/oradata/orcl/system01.dbf SYSTEM
SYSAUX /u01/app/oracle/oradata/orcl/sysaux01.dbf ONLINE
USERS /u01/app/oracle/oradata/orcl/users02.dbf ONLINE
USERS /u01/app/oracle/oradata/orcl/users01.dbf ONLINE
USERS /u01/app/oracle/oradata/orcl/users03.dbf ONLINE
USERS /u01/app/oracle/oradata/orcl/users03 ONLINE
UNDOTEMP /u01/app/oracle/oradata/orcl/undotbs01.dbf ONLINE
TEST /u01/app/oracle/product/11.1.0/db_1/dbs/C:oracleoradatadbtest.dbf ONLINE