What are a query and state the different types of queries and their uses?
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Define the terms primary key foreign key and also the difference between primary and the unique key
Display the records between two range?
How to use subqueries with the exists operator in oracle?
Is it possible to join two tables, that are in two different users (e.g. SCOTT and HR etc.),but im same database (e.g. ORCL)? If yes, then how it is possible? Explain with step by step procedure.
Assuming today is Monday, how would you use the DBMS_JOB package to schedule the execution of a given procedure owned by SCOTT to start Wednesday at 9AM and to run subsequently every other day at 2AM.
what is the difference between restoring and recovering?
What is an oracle database?
Differnce between view and index
Why is oracle database so popular?
"primary key=unique+null" is equal,reson?not,reason?
what is load balancing and what u have used to do this?(sql loader)
What happens to the current transaction if a ddl statement is executed?