What are oracle functions?
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In which dictionary table or view would you look to determine at which time a snapshot or MVIEW last successfully refreshed?
What is the fastest query method to fetch data from the table?
How to call a stored procedure inside a trigger? Give an example.
What is the exact use of Collections?
14. Display the item_cost and then round it to the nearest hundred, ten, unit, tenth and hundredth
How to drop an existing table in oracle?
What is an external table?
What is a subquery in oracle?
What are the different approaches used by Optimizer in choosing an execution plan ?
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?
How to use attributes of the implicit cursor in oracle?
If a table column has is UNIQUE and has NOT NULL, is it equivalent to a PRIMARY KEY column?