What is a nvl function?
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What is a Data Segment ?
Write a syntax for update query in oracle?
Can group functions be used in the order by clause in oracle?
How do we represent comments in oracle?
Describe an oracle table?
13. Display the second to fifth characters in each client name.
Why is oracle so popular?
16. Display the order number, order line number and the shipping date. If the shipping date is null, display the string <not shipped yet>.
i have a question here... As of my knowledge, when we apply an index (b-tree)on a column, internally it arranges the data in b-tree format and do the fetching process correspondingly... and my quetion is... How a bit-map index arranges the data internally when applied on a column?IS it in b-tree format or whatelse?
What is the difference between a hot backup and a cold backup in oracle?
what is the maximum number of indexes i can create for a table? What happens if i create indexes for all the columns of a table? Will it slow down the speed of retrieval
What is a view and how is it different from a table?