How index is implemented in oracle database?
What is an Oracle Instance?
1. How actually index will work ? 2. Why do people prefer mostly bitmap index and btree index in datawarehouse ? 3. If I use the column in aggrigate functions like max,min,count and avg and if I have a index created on that column, will it increases the performance ?
What is oracle rownum?
Explain the function of optimizer in oracle?
Differnce between view and index
What are the different types of databases?
How to use existing values in update statements using oracle?
What is the difference between alert log file and tarce file ?
Can we protect our pl/sql source code?
What is the function of Redo Log ?
How to update a table row with a record?
How to display the hierarchy of employee and managers without using connect by prior.