oracle日志管理 一：Active(Current)and Inactive Redo Log File(当前活动和非活动的日志文件）active（current）：Redo log files that are required for instance recovery are called active redo log files 实例恢复需要该日志就叫...
If both of the following are true,the grantee can create views on the table and grant the corresponding privileges on the views to any user or role in the database:The grantee receives object privileges for the table ...
set role r2*ERROR at line 1:ORA-01979:missing or invalid password for role 'R2' SQL>set role r2 identified by r2;Role set.SQL>select*from session_privs;PRIVILEGE-CREATE TABLE SQL>select*from session_roles;ROLE-R2 SQL>set ...
