Explain oracle insert into command?
what is null value?
How to store only time; not date and time?
Can we create more than one index on particular column?
Define Transaction ?
What is background process in Oracle?
What is dictionary cache ?
What is indexing, and how does it improve performance?
What is blob datatype?
What is data block in Oracle?
How will you differentiate between varchar & varchar2?
What is format trigger?
How to get last row id?