1、应该是dba_users
2、oracle常用命令
查看所有表和view
SQL> select * from tab;
查看所有参数
SQL>show parameter
查看表或视图结构
SQL>desc dba_users
查看日期
SQL>select sysdate from dual;
查看用户
SQL>select username,account_status from dba_users;
查看表空间及相应文件
SQL>select a.name,b.name from v$tablespace a ,v$datafile b where a.TS#=b.TS#;
SQL>select TABLESPACE_NAME,FILE_NAME from dba_data_files order by TABLESPACE_NAME;