RMAN backup and logical backup With Different User Step 1: Create the user CREATE USER bkp_user IDENTIFIED BY bkp_user DEFAULT TABLESPACE users TEMPORARY  TABLESPACE temp PROFILE DEFAULT;  GRANT CONNECT TO bkp_user;  GRANT exp_full_database TO bkp_user;  GRANT imp_full_database TO bkp_user;  GRANT recovery_catalog_owner TO bkp_user;  GRANT select_catalog_role TO bkp_user;  GRANT CREATE SESSION TO bkp_user;  Step 2: Connect RMAN with the Above Created User …

ERROR Solution : ORA-01442: column to be modified to NOT NULL is already NOT NULL sql> alter table HR.employees modify UID not null; ORA-01442: column to be modified to NOT …

How To Move Table to Different TableSpace   SYNTAX ALTER TABLE table_name move TABLESPACE tablespace_name (INITIAL=64k MINEXTENTS=1 MAXEXTENTS=UNLIMITED);   EXAMPLE ALTER TABLE hr.employee_details move TABLESPACE hr; OR ALTER TABLE hr.employee_details move TABLESPACE hr (INITIAL=64k MINEXTENTS=1 MAXEXTENTS=UNLIMITED);