With a demanding database, you may want to know how to find out the most expensive sqls. Running on Oracle, we have Cost-Based Optimizer, the… Read More »How to Find Most Expensive SQL
SYSDBA Privilege SYSDBA is a system privilege. By default, only SYS has the privilege, but it can be changed by granting to other user. Although… Read More »Who has SYSDBA Privilege?
RMAN Log Location RMAN is a client side utility like sqlplus used to interoperate with DB, we usually compose a script file or a batch… Read More »3 Ways to Set RMAN Log Location