select table_name from all_tables where owner=upper('scott');

------解决方案--------------------
查看特定用户对应的方案中的表：select table_name from user_tables;
查看所有用户方案中的表：select table_name from dba_tables;  // 需要dba权限的用户来执行。


------解决方案--------------------
只有show user,show parameter ....

------解决方案--------------------
show parameter instance_name

------解决方案--------------------
探讨


哦哦，谢谢大家，查看表知道了，但是没有查看库名的命令吗，像mysql中的show databases；


------解决方案--------------------
SQL code
My SQL: show tables == Oracle: select * from user_tables;
My SQL: show databases == Oracle: select * from dba_users;
-- My SQL中的数据库的概念可以简单理解为 对应 Oracle 的 SCHEDULER

------解决方案--------------------
select * from all_all_tables;看看你需要看那个用户或表空间的,后面加 where owner="xxx"就可以了

------解决方案--------------------
探讨


谢谢大家，最后问下：是不是mysql中的database概念相当于oracle中的tablespace概念


------解决方案--------------------
从oracle定义数据库的语句就可以看出 oracle 的数据库是什么了、
SQL code

CREATE DATABASE db_name
LOGFILE
GROUP 1 ('/opt/oracle/u02/oradata/db_name/redo01.log','/opt/oracle/u02/oradata/db_name/redo01_1.log') size 500m reuse,
GROUP 2 ('/opt/oracle/u02/oradata/db_name/redo02.log','/opt/oracle/u02/oradata/db_name/redo02_1.log') size 500m reuse,
GROUP 3 ('/opt/oracle/u02/oradata/db_name/redo03.log','/opt/oracle/u02/oradata/db_name/redo03_1.log') size 500m reuse
MAXLOGFILES 50
MAXLOGMEMBERS 5
MAXLOGHISTORY 200
MAXDATAFILES 500
MAXINSTANCES 5
ARCHIVELOG
CHARACTER SET ZHS16GBK
NATIONAL CHARACTER SET AL16UTF16
DATAFILE '/opt/oracle/u02/oradata/db_name/system01.dbf' SIZE 1000M EXTENT MANAGEMENT LOCAL
SYSAUX DATAFILE '/opt/oracle/u02/oradata/db_name/sysaux01.dbf' SIZE 1000M autoextend on next 50M maxsize 2048M 
UNDO TABLESPACE UNDOTS DATAFILE '/opt/oracle/u02/oradata/db_name/undo.dbf' SIZE 1000M autoextend on next 50M maxsize 2048M 
DEFAULT TEMPORARY TABLESPACE TEMP TEMPFILE '/opt/oracle/u02/oradata/db_name/temp.dbf' SIZE 1000M autoextend on next 50M maxsize 3072M ;