20. Using a set operator, display the client number of all
clients who have never placed an order.
What is an oracle?
How to write text literals in oracle?
In Oracle 10g, "g" Stands for what?
What is Parallel Server ?
How do I call oracle stored procedures that take no parameters?
What is an Index Segment ?
How to convert characters to dates in oracle?
Explain can a view based on another view?
What is difference between truncate and delete?
What is a synonym? What are its various types?
What is the usage of merge statement?
what is difference between DBMS and RDBMS?